PDO - Permit to Work

Permit To Work System Manual DOCUMENT ID - PR 1172 REVISION- 7 DATE

- 13/4/2010

UNRESTRICTED Apr-10

Document ID: PR-1172 Filing Key: Business Control

Petroleum Development Oman L.L.C.

Engineering and Operations Permit to Work System

User Note: The requirements of this document are mandatory. Non-compliance Non-compliance shall only be authorised by the Document Owner or his Delegate through STEP-OUT STEP-OUT approval. approval. A controlled copy of the current version of this document is on PDO's EDMS. Before making reference to this document, it is the user's responsibility to ensure that any hard copy, or electronic copy, is current. For assistance, contact the Document Custodian or the Document Controller . Users are encouraged to participate in the ongoing improvement of this document by providing constructive feedback .

Please familiarise yourself with the Document Security Classification Definitions They also apply to this Document!

This document is the property of Petroleum Development Development Oman, LLC. Neither the whole nor any part of this document may be disclosed to others or reproduced, stored in a retrieval system, or transmitted in any form by any means (electronic, mechanical, reprographic recording or otherwise) without prior written consent of the owner.

UNRESTRICTED Apr-10

Document ID: PR-1172 Filing Key: Business Control

Petroleum Development Oman L.L.C.

Engineering and Operations Permit to Work System

User Note: The requirements of this document are mandatory. Non-compliance Non-compliance shall only be authorised by the Document Owner or his Delegate through STEP-OUT STEP-OUT approval. approval. A controlled copy of the current version of this document is on PDO's EDMS. Before making reference to this document, it is the user's responsibility to ensure that any hard copy, or electronic copy, is current. For assistance, contact the Document Custodian or the Document Controller . Users are encouraged to participate in the ongoing improvement of this document by providing constructive feedback .

Please familiarise yourself with the Document Security Classification Definitions They also apply to this Document!

This document is the property of Petroleum Development Development Oman, LLC. Neither the whole nor any part of this document may be disclosed to others or reproduced, stored in a retrieval system, or transmitted in any form by any means (electronic, mechanical, reprographic recording or otherwise) without prior written consent of the owner.

Petroleum Development Oman LLC

Revision 7.0 Effective: Apr-10

This page was intentionally left blank

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PR-1172 – Permit to Work System

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The controlled version of this CMF Document r esides online in Livelink®. Printed copies are UNCONTROLLED.


i


Document Authorisation

Authorised For Issue – April 2010

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The controlled version of this CMF Document resides online in Livelink®. Printed copies are UNCONTROLLED.


ii


Revision History

The following is a brief summary of the 5 most recent revisions to this document. Details of all revisions prior to these are held on file by the issuing department. Revision No. 7.0

Date

Author

Scope / Remarks

April10

Del Ellbec UOP/7

Incorporating further enhancements following annual review and user feedback

6.1

Dec-08

Del Ellbec UOP/7

Rectification of minor printing errors

6.0

Nov-08

Del Ellbec UOP/7

Incorporating changes from PTW annual review / audit, and user feedback Reformatted and Change of Ownership

5.0

Jul-05

Obaid.R.Al-Maani

Incorporation of changes due to NOM and October 2004 Level 2 PTW Audit recommendations, including the revision of the formation of Assessment team members in PTW licensing panel across the company.

4.0

Jul-02

Hamed S. Al-Khalfeen

Incorporation of changes from Permit to Work Workshop conducted on 12 Mar 2002.

Ref. Ind: CSM/11 3.0

Mar-99

Incorporation of changes from Yibal pilot operation

2.0

Nov-98

Re-write of Version 1 Manual, including revision of requirement for work needing a Permit, and emphasis on the role of the Job HSE Plan. Incorporation of Addendum of system detail operation and licensing requirements, together with other detail changes.

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iii Related Business Processes Code EP 72

Business Process (EPBM 4.0) Maintain and Assure Facilities Integrity

iv Related Corporate Management Frame Work (CMF) Documents The related CMF Documents can be retrieved from the CMF Business Control Portal . CP-122

Health, Safety and Environment Management Manual

CP-114

Maintenance CoP

CP-118

Well Life Cycle Integrity

See Reference Material Appendix 4

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TABLE OF CONTENTS Executive Summary.....................................................................................................................10 Executive Summary.....................................................................................................................10 1

PDO Permit to Work System..........................................................................................11 1.1

Scope..............................................................................................................................11

1.2

Objectives.......................................................................................................................11

1.3

Changes to the Document.............................................................................................. 12

1.4

Step-out Approval...........................................................................................................12

2

Management of the Permit to Work System...................................................................13 2.1

System Custodian and Focal Points ..............................................................................13

2.2

Responsibilities of the System Custodian, OXO/2 and Focal Points .............................13

3

Work That Needs a Permit to Work................................................................................15 3.1

What is a Permit to Work system? .................................................................................15

3.2

Types of Permit...............................................................................................................17

3.3

Location of Work............................................................................................................. 18

3.4

Activities Requiring a Permit...........................................................................................19

3.5

Gas Test Frequency....................................................................................................... 19

3.6

Work in Other Areas under the Control of PDO .............................................................25

3.7

Other Work .....................................................................................................................25

3.8

Work in Areas Not Under the Control of PDO................................................................ 25

4

Worksite Examination and Restrictions on Permit Work................................................27 4.1

Worksite Examination Requirements .............................................................................27

4.2

Restrictions on Hot Work in Hazardous Zones ..............................................................27

4.3

Limits on the Amount of Work under an Area Authority .................................................28

5

Responsibilities of Persons Signing Permits..................................................................29 5.1

People who Sign the Permit Documents........................................................................ 29

5.2

Permit Applicant ............................................................................................................. 29

5.3

Production Co-ordinator ................................................................................................. 30

5.4

Responsible Supervisor..................................................................................................30

5.5

Area Authority.................................................................................................................31

5.6

Permit Co-ordinator ........................................................................................................31

5.7

The Permit Holder .......................................................................................................... 31

5.8

Other Affected Custodian ............................................................................................... 32

5.9

Gas Tester......................................................................................................................32

5.10 PTW Multi-Roles (Licensed Personnel) .........................................................................34 6

How the Permit to Work System Operates.....................................................................36 6.1

The Permit Forms...........................................................................................................36

6.2

Applying for a Permit - Boxes 1 to 5...............................................................................38

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6.3

Authorisation and Coordination ......................................................................................41

6.4

Briefing of the Permit Holder...........................................................................................44

6.5

Isolations.........................................................................................................................44

6.6

Vehicle Access................................................................................................................45

6.7

Co-ordination and Validation at the Issue Point .............................................................46

6.8

Acceptance by the Permit Holder ...................................................................................47

6.9

Actions after Validation ...................................................................................................48

6.10 Briefing the Work Party – the TRIC Talk ........................................................................48 6.11 Supervision of the Work..................................................................................................49 6.12 Gas Test Record.............................................................................................................49 6.13 Suspension of Work........................................................................................................50 6.14 Changeover of Personnel...............................................................................................51 6.15 Permit Re-validation........................................................................................................52 6.16 Permit Cancellation.........................................................................................................52 6.17 Permit Archiving ..............................................................................................................54 6.18 Permit Processing Procedure.........................................................................................54 6.19 Permit Validation Exceptions ..........................................................................................59 7

Control of Isolations ....................................................................................................... 60 7.1

Isolation Requirements ...................................................................................................60

7.2

Electrical Systems...........................................................................................................60

7.3

Mechanical Systems.......................................................................................................60

7.4

Approval for Isolation ......................................................................................................60

7.5

Permits for Spading ........................................................................................................61

7.6

Unrecorded Isolations.....................................................................................................61

7.7

Isolation Process.............................................................................................................61

7.8

More than One Permit in an Isolation Boundary.............................................................62

7.9

De-Isolation on Completion of Work ...............................................................................62

7.10 De-Isolation for Testing...................................................................................................63 7.11 Transfer of Isolations between Permits ..........................................................................63 7.12 Extended Period Isolations (EPIs)..................................................................................64 8

Permit Issue Points........................................................................................................ 65 8.1

Location and Use of Permit Issue Points........................................................................65

8.2

Purpose of Permit Issue Point Displays .........................................................................65

8.3

Permit and Isolation Display ...........................................................................................65

9

Use of the Work Tracking System ................................................................................. 67 9.1

Objectives of the Work Tracking System........................................................................67

9.2

Operation of the PTW Tracking System.........................................................................67

10

Permit to Work System Certificates............................................................................... 68

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10.1 Certificates Provided ...................................................................................................... 68 10.2 Use of Certificates .......................................................................................................... 68 11

Hazard Management ......................................................................................................71

11.1 Objectives.......................................................................................................................71 11.2 Job HSE Plan ................................................................................................................. 71 11.3 T.R.I.C – Toolbox Talk Risk Identification Card .............................................................73 12

Training and Licensing Of Permit to Work Signatories ..................................................75

12.1 Training and Licensing of Personnel with PTW Roles ...................................................75 12.2 Gas Testers ....................................................................................................................75 12.3 Training Course Assessment Tests ...............................................................................75 12.4 Training Records ............................................................................................................75 12.5 Licensing Policy..............................................................................................................75 12.6 Licensing of Permit to Work Signatories ........................................................................77 12.7 Persons Assessed under an Approved Competence Scheme ......................................79 12.8 License Cards................................................................................................................. 80 12.9 Re-Licensing...................................................................................................................80 12.10Refresher Training.......................................................................................................... 80 13

Permit To Work Monitoring, Auditing And System Review ............................................82

13.1 Definitions.......................................................................................................................82 13.2 Objectives.......................................................................................................................82 13.3 Monitoring of the Permit to Work System.......................................................................82 13.4 Auditing of the Permit to Work System...........................................................................82 13.5 Review of the Permit to Work System............................................................................87 13.6 Permit to Work System Audit Forms ..............................................................................87 14

Change Management .....................................................................................................95

14.1 Proposals for Change to the Permit to Work System.....................................................95 15

Details of PTW System Operation..................................................................................96

15.1 Fault Finding...................................................................................................................96 15.2 Construction Work .......................................................................................................... 96 15.3 Seismic Work.................................................................................................................. 97 15.4 Geomatics Survey Work................................................................................................. 98 15.5 Pipeline Work .................................................................................................................99 15.6 Work In Operational Areas .............................................................................................99 15.7 Terminal Operations.....................................................................................................105 15.8 Government Gas Operations .......................................................................................106 15.9 Electrical Safety Rules and PTW Interfaces.................................................................107 15.10Permits to Work for ESP Activities ...............................................................................109 15.11Permits To Work On Drilling Rigs................................................................................. 110 Page 8


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15.12Use of Well Flushby Unit ..............................................................................................113 Appendix 1 – Class A Permit to Work....................................................................................... 115 Appendix 2 – Class B Permit to Work....................................................................................... 116 Appendix 3 - Mechanical Isolation Certificate & De-Isolation for Test Record Sheet .............. 117 Appendix 4 – Confined Space Entry, Additional Gas Test Record, Record of Personnel Entry and Exit ........................................................................................................................ 120 Appendix 5 – Access Authorisation Form................................................................................. 122 Appendix 6 - Excavation Certificate.......................................................................................... 123 Appendix 7 – Radiography Certificate ...................................................................................... 124 Appendix 8 – Clearance Certificate for Work in the Vicinity or Passage Under O/H Lines...... 125 Appendix 9 - Exceeding The Number Of Permits Under a Single Area Authority Request Form ..................................................................................................................................... 126 Appendix 10 – Pigging Authorisation Form .............................................................................. 127 Appendix 11 – Checklist 1 ........................................................................................................ 129 Appendix 12 – Checklist 2 ........................................................................................................ 130 Appendix 13 - Definitions and Abbreviations............................................................................ 131 Appendix 14 - Reference Material ............................................................................................ 132

TABLES AND FIGURES Figure 3.1 – No Permit Job......................................................................................................... 26 Table 4.1 – Work Site Examination Requirements..................................................................... 27 Table 5.1: PTW System Roles.................................................................................................... 29 Table 5.2 - Roles that May be Carried out by Licensed Personnel............................................ 34 Table 5.3 - Roles that can be Filled by Any One Person on a Single Permit............................. 34 Figure 6.1 – Permit Life Cycle .................................................................................................... 37 Figure 11.1 – Job HSE Plan Process ......................................................................................... 72 Figure 11.2 – Job HSE Plan (Example)...................................................................................... 73 Figure 11.3 – TRIC ..................................................................................................................... 74 Table 12.1: PTW Training and Licensing Requirements............................................................ 75 Figure 12.1 - Knowledge and Competence for Permit Activities ................................................ 76 Table 12.2 - Licensing Assessment Teams................................................................................ 78 Figure 12.2 - Licence Application / Notification .......................................................................... 81 Table 13.1: Audit Structure ......................................................................................................... 84 Table 14.1 Proposals for Change to the Permit to Work System............................................... 95

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Executive Summary The petroleum industry handles large quantities of flammable and toxic materials, so the potential for serious accidents is clear. To prevent these accidents, it is vital that there are safe systems of work operating. When incidents do occur, human factors, such as failure to implement procedures properly, are often a root cause. These failures may, in turn, be attributable to a lack of training, instruction or understanding of either the purpose or practical application of the Permit to Work (PTW) system. A Permit to Work (PTW) system does not exists simply to provide permission to carry out a hazardous job. It is an essential part of a system, which determines how that job can be carried out safely. The Permit is regarded as a statement that all hazards and risks have been eliminated from or controlled in the work area. The issue of a Permit does not, by itself, make a job safe. That can only be achieved by those preparing for the work and those carrying it out. The Permit To Work System forms a key part of the company HSE Management System, and demonstrates compliance with the legal framework of Oman – IT IS A LEGAL DOCUMENT. The PTW system ensures that authorised and properly trained people have thought about foreseeable risks and that these are avoided by using suitable precautions. Those carrying out the job think about and understand what they are doing and how their work may interface with that of others. They must also take the necessary precautions which they have been trained to take and for which they have been made responsible. The PDO PTW System exists to protect people, assets and the environment from damage. The PDO PTW Manual describes the PTW system (how Permit work is identified, approved and controlled) and outlines the details necessary for all personnel involved in the PTW system to carry out their work safely and with proper regard for the environment. More specifically, parts of the Manual address the following: Section 1

Outlines the scope and objectives of the PTW system

Section 2

Outlines responsibilities of the PTW Custodians, Focal Points and others

Section 3

Defines types of Permits available & activities for which a Permit is required

Section 4

Outlines worksite examination requirements, restrictions on Permit work

Section 5

Outlines responsibilities of persons involved in operating the PTW System such as the Permit Applicant, Responsible Supervisor, Area Authority, Permit Holder and Authorised Gas Tester

Section 6

Describes the operation of the PTW system

Section 7

Outlines the requirements for the control of isolations

Section 8

Describes requirements for Permit issue points

Section 9

Outlines the use of the work tracking system

Section 10

Describes the Permit to Work certificates required and how these are to be used

Section 11

Describes the hazard management process (primarily Job HSE Plans)

Section 12

Outlines the training and licensing requirements of the PTW system

Section 13

Outlines the PTW system monitoring, auditing and system review

Section 14

Describes how to forward suggestions for improving the PTW system

Section 15

Further details of the PTW system operation

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1


PDO Permit to Work System

1.1

Scope This Permit to Work (PTW) System Manual shall be used in all areas under the control of PDO. The Manual explains the “Principles of Permitry” and defines activities for which a Permit to Work is required. required. It also states how Permits are approved approved and controlled. controlled. Section 15 of the Manual gives detail guidance on how the PTW System shall be used in specific work situations. Permits are issued by PDO for work in areas where there may be a hazard to Personnel, Asset, or Environment. These hazards may not necessarily be related to hydrocarbons. Safety requirements for work in non-hydrocarbon areas are described in other relevant HSE procedures within PDO.

1.2

Objectives The PDO Health, Safety and Environmental Management System Manual states that the Company will endeavour to protect the health and safety of personnel protect the environment and provide a safe and healthy workplace. The PTW System is an important part of the way that PDO meets the requirements of this Policy. The Objective of the PTW system is “To provide a system to ensure that non-routine, hazardous activities can be worked on in a safe manner”. To achieve safety at the workplace, the PTW system must ensure that everyone is aware of the hazards involved in their work, and of the precautions they must take to work safely. To help ensure this, the Permit to Work System requires: Training:

To ensure everyone understands the PTW System and how to use it.

Licensing:

People signing Permits must be tested to ensure they understand the System and have sufficient knowledge of hazards and controls to manage safe working.

Planning:

To ensure that work is well planned, with the workforce and equipment prepared for the job.

Work Definition:

To ensure that everyone understands the work content, and how and where it shall be done.

Hazard Management:

To ensure that the hazards involved in the work are identified, and the precautions and personal protection required for a task are correctly defined.

Co-ordination:

To prevent conflicting activities from f rom being authorised.

Communication:

To ensure that all personnel understand the work content and the Job HSE Plan.

Authorisation:

Formal approval to do the work.

Supervision:

Providing a person in charge of each work site, who is responsible for ensuring that work party complies with the requirements of the Permit to Work.

Briefing:

Toolbox Talks at the worksite to discuss the job, how it will be done, and the precautions required.

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Petroleum Development Oman LLC Discipline:

To ensure that everyone knows that they must comply with Permit requirements.

Housekeeping:

To ensure that the work site is kept clean and safe at all times.

Verification:

An audit programme to help ensure that the requirements of the Permit to Work System are being met in all areas of PDO.

Improvement:

A Proposal for Change programme, together with audits, to ensure that the system is improved whenever necessary. For all work covered by a Permit, it is important that everyone associated with the job: The work content and how it will be done.

Understands:

The hazards involved, and precautions that are required. The work area, hazards that may be present there and the precautions required. Any emergency actions that may be necessary. Their own responsibilities, and With all the requirements of the Permit to ensure the continued safety of personnel, plant and equipment.

Complies:

REMEMBER, REMEMBER, JUST HAVING A PERMIT IS NOT ENOUGH TO MAKE A JOB SAFE - YOU MUST COMPLY WITH THE REQUIREMENTS OF THE PERMIT AND ITS ASSOCIATED JOB HSE PLAN.

1.3

Changes to the Document Responsibility for the upkeep of the Document shall be with the Functional Production Team Leader UOP, the Owner. Changes to this document shall only be authorised and approved by the Owner. Users of the Document who identify inaccuracy or ambiguity can notify the Custodian or his/her delegate and request changes be initiated. The Requests shall be forwarded to the Custodian. The Document Owner and the Document Custodian should ensure review and reverification of this procedure every 1 year.

1.4

Step-out Approval This procedure is mandatory and shall be complied with at all times. Should compliance with this procedure be considered inappropriate or the intended activity cannot be effectively completed or safely performed, then step out authorisation and approval must be obtained in accordance with PR-1001e – Operations Procedures Temporary Variance , prior to any changes or activities associated with the procedure being carried out. Additionally in the case of Permit to Work the request shall be formally agreed and endorsed by the PTW System Manager (UOP7)

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2


Management of the Permit to Work System

2.1

System Custodian and Focal Points The PTW System Corporate Custodian is the Production Function Permit to Work System Manager (UOP/7). UOP/7 is responsible for providing steering/direction to ensure that the PTW System meets the needs of PDO. This role is also responsible for implementation implementation support and coordinating system maintenance The PTW Training Custodian is UOP/7 who is responsible for the content and suitability of PTW training. Asset Directors are responsible for the implementation of the PTW System, and for appointing Focal Points for the PTW System in each Area.

2.2 2.2.1

Responsibilities of the System Custodian, OXO/2 and Focal Points PTW System Custodian The Responsibilities of the PTW System Custodian are: To be the Corporate focus within PDO for the content of the PTW System.

•

To maintain a high standard of quality and content for all PTW System documentation.

•

To ensure that the system in place delivers the necessary documentation to users.

•

To define the requirements for PTW System Hardware, Hardware, including Permit Racks, Location Boards, Isolation Hardware, etc.

•

To be the corporate focus for Area Focal Points to submit proposals for change to the System, reviewing and incorporating these annually.

•

To control revisions to the PTW System, consulting with user Departments about any changes that will be made.

•

To ensure that briefings are delivered on any changes to the System.

•

To ensure that auditing is being done in accordance with the defined audit scheme.

•

To approve functional specs for computer systems used as part of the PTW System.

•

2.2.2

•

To provide training to PTW Focal Points.

•

“Helpdesk” support.

•

Implementation Implementation support and system maintenance. maintenance.

OXO/2 The responsibility of the OXO/2 position is:

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•

Provide Audit support

•

Provide support for field implementation


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Petroleum Development Oman LLC 2.2.2

Delivery Team Leader The responsibility of the Delivery Team Leader (DTL) position is:

2.2.4

•

To initiate Area Audit programs

•

Provide Implementation support

•

Ensure compliance with the PTW system in their area of operation

HSE Mandated Training Focal Point The responsibilities of the HSE Training Focal Point are:

2.2.5

•

To manage QA/QC for PTW training.

•

To manage the Contractual issues around PTW Training

PTW Training Custodian The responsibilities of the PTW Training Custodian are:

2.2.6

•

To define the requirements for PTW Training Courses and their content.

•

To maintain the required standard of course delivery.

Focal Points The responsibilities of the PTW Focal Points within each area are:

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•

To provide local implementation support.

•

To ensure PTW Audits are being done in an effective manner.

•

To be the local focal point for proposals for change to the system.


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3


Work That Needs a Permit to Work

3.1

What is a Permit to Work system? A Permit to Work system is a formal documented system used to control work which has been identified as potentially dangerous. It is also a means of communication between site management, supervisors, operators and those who carry out the work. IT IS A LEGAL DOCUMENT A PTW system aims to ensure that proper planning and precautions are taken with hazards to control the risk of a particular job. The permit is a written document which authorises certain people to carry out specific work at a certain time and place. The permit sets out the precautions needed complete the work safely. There are two types of Permits. These are described in Section 3.2 of this document.

3.1.1

Principle of Permitry The "Principle of Permitry" is the process used to determine whether a job needs a Permit to Work or not. Prior to any work commencing, the Responsible Supervisor and the Permit Applicant are to discuss the job/s to be executed and, using the process flowchart below, determine whether a PTW is required or not. Their determination shall be verified by the Permit Signatories. This is a MANDATORY requirement to determine "WHEN A PERMIT IS REQUIRED":

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NOTES: 1.

Work without a permit shall not start without the following:- a. A Job HSE Plan for the work b. Diligent supervision on site c.

3.1.2

A completed “No Permit Job” form signed by the work site Supervisor and authorised by the relevant responsible supervisor

2.

Written procedures can vary in length, but need to be specific for the job, cover the hazards identified and the control measures required. These need to be endorsed and approved by the Team Leader or Manager.

3.

If the job is able to be completed without a Permit, the Work Site Supervisor must submit a signed “No Permit Job” form to the Responsible Supervisor. The Responsible Supervisor shall authorise the form before any work can begin. Please refer to Figure 3.1 at the end of this Section for a copy of the “No Permit Job” form. See Section 3.2.3 for requirements of No Permit Job Forms

Hazard and Risk Assessment A critical element of the Principle of Permitry and PTW preparation stage is an assessment of the hazards, threats and risk which are associated with the work to be undertaken. The techniques of the Hazard and Effect Management Process (HEMP) shall be applied which helps the assessor to: IDENTIFY Understand the hazards and threats associated with the work (What are the impacts to people, assets, environment or reputation? Obtain precise details of the work to be undertaken. Are there 'process' hazards or hazards associated with the material being handled involved in the work?) ASSESS Recognise the risks (What are the likelihood to cause harm? Is the risk involved as low as reasonably practicable -ALARP? Consider the practical difficulties of carrying out the work, if necessary consulting the discipline specialists undertaking the work) CONTROL Decide upon the barriers and control necessary to manage the risk thus providing a safe working environment (What is required to prevent the likelihood of causing harm from carrying out the work being realised? Are there any safer alternatives either in terms of timing, or the intended method of performance of the work) and RECOVER Agree on the recovery measures in the event that controls break down. The Permit Applicant should carry out such assessment in conjunction with his workforce and any other persons whose specialist knowledge may be needed. Where available the Permit Applicant will take advantage of all hazard information in the HEMP Section of the Safety Case. This will assist him in recognising hazards, threats, risks, barriers and precautions needed and response mechanism should controls breakdown. Likewise the Responsible supervisor and the Area Authority should also undertake such assessment when the permit is presented to further enhance safety control, if needed. NOTE: Section 11 of this procedure explains in details how to prepare Job HSE plan based on Risk assessment.

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Petroleum Development Oman LLC 3.2 3.2.1

Types of Permit Class A - Red Edged Permits Class A Permits (refer to Appendix A) are required for high risk work. This is work that could lead to major consequences such as fire, explosion, or loss of life. Class A Permits requires: •

•

•

72 hours notice, except for essential unplanned work. A Job HSE Plan to be completed, and attached to the Permit, and prominently displayed at the worksite. A copy should be placed with the permit in the permit rack. Worksite examination by the Responsible Supervisor and Permit Applicant before the Responsible Supervisor Authorises the Permit. (see 4.1) Some areas have more than one person licensed as a Responsible Supervisor. It is quite acceptable for the duty Responsible Supervisor to delegate site visits to another person who holds a Responsible Supervisor licence.

•

•

3.2.2

Daily Validation of the Permit by the Area Authority. The Area Authority must examine the worksite each day before Validating a Permit for work inside a Process Facility. The Area Authority must examine the worksite on the first day for work in Hydrocarbon Areas; however, this may be delegated to an Authorised Gas Tester (AGT) at the discretion of the Responsible Supervisor. (see 5.4) Tracking in the Work Tracking System.

Class B - Blue Edged Permits Class B Permits (refer to Appendix B) are required for medium risk work. Class B Permits require: •

•

•

•

3.2.3

48 hours notice, except for essential unplanned work. A Job HSE Plan to be completed. Copies of the Job HSE Plan shall be attached to the Permit taken to site. Authorisation by the Responsible Supervisor. For work inside a Process Facility, a worksite examination by the Area Authority before Validation on the first day (see 4.1)

•

Daily Validation of the Permit by the Area Authority.

•

Tracking in the Work Tracking System.

No Permit Job Jobs that have been determined as no Permit Jobs need to be agreed and authorised as such. The “No Permit Job” (see Figure 3.1) shall be used. No Permit Forms require: •

•

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All the criteria on the form to be satisfied A duration and review date agreed between Work Supervisor and Responsible Supervisor. As a guideline 28 days should be the maximum duration between reviews.


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Petroleum Development Oman LLC 3.3


Location of Work IMPORTANT NOTE : All work regardless of Location requires a completed TRIC

The type of Permit required for a job depends on the hazards resulting from: •

The type of work that shall be done.

•

The area in which the work will be done.

Within PDO’s operations, three types of area have been defined in order to allow PTW controls to be appropriate for the level of risk. 3.3.1

Process Facilities The area within the boundary fence of any hydrocarbon processing facility, including: •

Gathering and Pumping stations.

•

Terminals.

•

Other fenced hydrocarbon storage or processing areas.

In addition the level area around a wellhead (well location) is classed as a Process Facilities for permit classification purposes, when the well is flowing NOTE: If the well is mechanically plugged or closed in on tree valves the classification can be relaxed to a Hydrocarbon Area. 3.3.2

Hydrocarbon Areas Areas outside the boundaries of Process Facilities where hydrocarbons are, or have been present. These include: •

•

•

•

•

•

3.3.3

Areas outside Process Facilities, but within 50m of the boundary fence. Areas within 50m of an exposed section of flowline/pipeline which has flanged joints. Work within 10m of an interfield gas pipeline whether or not it touches the line. Any work within 25m of the Main Oil Line or SOGL Gas Line (see GU-501 - Guidelines for Excavating and Working Around Live Pipelines ) i.e. Within the pipeline Right Of Way Areas within 100m of a drilling rig for work by non drilling personnel. Area around a well site (well location) when the well is not classed as a Process Area as in 3.3.1

Non Hydrocarbon Areas These are areas where hydrocarbons have never been present. They include: •

•

•

•

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Areas of land outside Process Facilities and Hydrocarbon Areas, including construction sites for new facilities until hydrocarbons are first introduced and the areas surrounding fully welded pipelines and flowlines. Work by electrical personnel in electrical switching stations and on power distribution systems, done in accordance with ESRs. Administration, recreation or accommodation buildings, including work on domestic gas and electric systems. Work in laboratories and medical facilities. PR-1172 – Permit to Work System

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NOTE: It is important to understand the differences between the areas mentioned above, Hazardous Areas and Restricted Areas, all of which are mentioned in the PTW Manual. The Hazardous Areas (Zones 0, 1 and 2), defined in Hazardous Area drawings, relate to the likelihood of presence of hydrocarbons. Hazardous Areas will lie within either a Process Facility or a Hydrocarbon Area. However, not all parts of a Process Facility or Hydrocarbon Area will be a Hazardous Area (e.g. control rooms are sited in nonhazardous areas). Process Facilities will all be Restricted Areas. However, some Restricted Areas are not Process Facilities (e.g. Telecom facilities).

3.4

Activities Requiring a Permit The Table in 3.6.1 shows the Activities that require Class A and Class B Permits in Process Facilities and Hydrocarbon Areas. For Example: Grinding in a Process Facility

Class A Permit

Grinding in a Hydrocarbon Area

Class B Permit

The Table in 3.6.2 shows the Activities that require Class A and Class B Permits for work in areas controlled by Electrical Departments. Work in other areas may require a Permit. See 3.7 for more details of how work in these areas is controlled. When the work on a Permit involves two or more different Activities: •

If any Activity requires a Class A Permit, a Class A Permit is required for the overall job.

•

All Activities are to be listed on the Permit.

•

The Job HSE Plan must show the controls required for all the Activities.

A Permit should not include so many Activities that it is difficult to understand the controls needed for each stage of the work. If the work is complex, it may be better to use separate Permits for each part of the job. Where personnel not on the normal access list require entry to a Process Facility for a visual inspection only, an Access Authorisation Form (refer to Appendix 4) may be used. Guidance on how to use this form can be found in the Access Control Procedure, SRD/P/08. •

A Responsible Supervisor may sometimes require a Permit to Work for activities that would not normally require it, in order to ensure safe working.

3.5 3.5.1

Gas Test Frequency Confined Spaces For entry to confined spaces, gas testing is required before entry and at the start of each shift; reference should be made to PR-1148 – Entry in to a Confined Space for more details.

3.5.2

H2S Areas In H 2S Areas testing and monitoring for H 2S is required in accordance with PR-1078 – Hydrogen Sulphide Management and PR-1154 Gas Testing Procedure .

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Testing for Hot Work The Table in 3.6 shows the recommended frequency for Gas Testing for Hot Work. Responsible Supervisors and Area Authorities may wish to test at intervals differing from the guidance, where conditions require this. In addition there are some categories of work which require continuous gas monitoring for the duration of the job. The basic principle of the guidance is that a gas test should be done before starting work each day, and after each period away from the worksite of more than 1 hour (e.g. lunch.) In addition, continuous gas testing is required for work that may cause flames or sparks done in Process Facilities where significant quantities of gas are present.

Section 3.5.4 on Next Page Intentionally

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Petroleum Development Oman LLC Type of Permit Required

Class A Permit Required Class B Permit Required HSE Plan Required (No Permit Documentation) Gas Test to be done before starting work each day, and after each period away from the worksite of more than 1 hour Gas Test every two hours in areas where significant quantities of gas may be present

3.5.4

Work in Areas where Hydrocarbons may be Present.

Activity.

Location of Work Process Facility

1.

Burning, Welding and Grinding

1.1

Welding (Gas) / Oxy-Acetylene cutting (Hot Work)

Hydrocarbon Area

+ Continuous monitoring

1.2

Welding (Arc) (Hot Work) (See 15.6.1)


1.3

Grinding (Hot Work)


2.

Confined Space Work

2.1

Confined Space Entry, except for Well Cellars and Casasco pits. Note-Gas testing in accordance with PDO policy is required. (See 3.5.1)

2.2 2.3

3. 3.1 3.2 4. 4.1 4.2 4.3 4.4

5. 5.1 5.2 6.

Entry into Well Cellars (See 15.6.3) and Casasco Pits (See 15.5.2) Entry into Well Cellars or Cosasco pits by Area Authority to carry out Operational Tasks to an approved procedure. Electrical Work and Work in Electrical Areas (See Section 15.8) Work requiring an electrical safety document as specified in Electrical Safety Rules (ESRs) The opening of live electrical junction boxes by Electrical Authorised Persons Handling Hazardous Substances

6.3

monitoring

+

Continuous monitoring


Handling substances hazardous to health, e.g. toxic chemicals or asbestos Use of Radioactive sources (See 15.6.8) Contamination with Naturally Occurring Radiation Material (NORM) Working with Pyrophoric Scale (except for scale encountered during pigging operations) Work on Safety Systems (See 15.6.1) Work that affects the availability of ESD & F&G Systems Work that affects the availability of Process and Machinery control systems Mechanical Maintenance Activities (See Section 15.6)

6.1 Work that involves cold cutting pipe on systems containing hydrocarbons or hazardous fluids 6.2

+ Continuous

N/A N/A


Work that involves unbolting flanges on systems containing hydrocarbons or hazardous fluids Grit Blasting (Hot Work)

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Petroleum Development Oman LLC Activity. 6.4 Power/hand tools (except grinders) that may create a spark between surface and tool 6.5 High Pressure (HP) water jetting 6.6

Painting (hand and spray) (See 15.6.17)

6.7

Engineering and routine/corrective maintenance work which does not involve unbolting flanges or cutting into systems which have contained hydrocarbons or hazardous fluids. Work in authorised workshops located in non-hazardous areas. Leak clamping of oil/gas flowlines

6.8 6.9

Location of Work

6.10 Beam pump/PCP maintenance activities (See 15.6.2) 6.11 Polyethylene lining of pipelines and flowlines 6.12 Vacuum tanker discharge inside a process area. (See 15.6.6) 6.13

Suction tanker operations inside a process area. (See 15.6.6

6.14

Engineering and routine/corrective maintenance work which involves the use of lifting equipment Work at Height

7. 7.1 8.

Working where a person may fall more than 2 metres, except on approved walkways and scaffolds Scaffolding Activities

8.1

Erection or dismantling of scaffolding

9.

Operations using Cranes and other Heavy Machinery

9.1

Operations where heavy machinery e.g. cranes/crane loads, mechanical excavators, trucks etc. could pass over, or come into contact with, live hydrocarbon systems or overhead power lines. (See 15.5.1 for work close to pipelines). Gas testing requirements as per 11.1


+


10.

Systems and Equipment Testing and Commissioning / Decommissioning 10.1 Pressure testing of plant and equipment 10.2 Commissioning Systems and Equipment 10.3 Decommissioning 11. Use of non-certified equipment in Hazardous Areas 11.1 Use of Temporary Diesel Engines in hazardous areas (including vehicle access, and the use of a mobile crane) (Including refuel operations) 11.2 Use of non-Intrinsically Safe equipment

+


+


+


11.3 Use of Intrinsically Safe test / portable equipment 11.4 Use of cameras (Hot Work). Providing a gas detector is carried by an AGT, and flash requirements included on the access authorisation form 11.5 Mobile diesel powered cleaning units used only by Area Authority for external cleaning of water injection plant, equipment and pipework. 12.

Civil Works

12.1 Excavation. (Hand excavation to 300 mm depth is required in areas where pipes or cables may be present) (See 15.6.7) 12.2 Rebar cutting, bending and shuttering (form work) and concrete pouring Page 22


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Petroleum Development Oman LLC Activity. 12.3 Engineering construction activities, not involving welding, burning or grinding (See Section15.2.) 13. Operational Activities

Location of Work

13.1 Production operations including routine checks and visual inspections by the Area Authority which require blowing down or sampling of hydrocarbons (providing an approved Operating Procedure is being followed) 13.2 Routine, documented drilling activities. (See Section15.11) 13.3 Well Services operations at locations where well site custodianship has not been transferred to the Well Services department. (See 15.6.16) 13.4 Drilling Water Services activities listed in Procedure DWSOP No P033 13.5 Pipeline pigging operations covered by authorised procedures & listed in approved programme, including vehicle access to pig trap area. 13.6 Operation of permanently installed approved equipment which produced an ignition source or open flame when it operates. 13.7 Seismic exploration activities. (See Section 15.3) 13.8 Terminal Operations. 13.9 Government Gas Operations. 13.10 Geomatic Survey (See Section 15.4) 13.11 Sampling of Process fluids where the fluids are classed as low, high, or very high risk sour service, or are not yet classified, and the sampling is carried out using approved Production Chemistry procedures. 13.12 Sampling of Process fluids where the fluids are classed as sweet, and the sampling is carried out using approved Production Chemistry procedures. 13.13 Use of Flushby Unit following dedicated contractors procedures approved by PDO. See Section 15.12 14. Inspection Work 14.1 Entry to Restricted Areas, for viewing purposes only, by personnel not on the access list for that Area.

N/A

Hydrocarbon Area requirements may apply See 3.3.2

Use Pigging Authorisation Form

Use Pigging Authorisation Form

See Section 15.7 See Section 15.8

No Permit Required. Use Access authorisation Form

15. Roadway Work 15.1 Levelling and grading using machinery

N/A

Hydrocarbon Area requirements may apply See 3.3.2

16. Faultfinding 16.1 Minor Fault finding work. This may include the controlled isolation and de-isolation of valves, the removal of instruments for calibration, blowing through of pneumatic relays or other routine minor activities. (See 15.1) 17

ESP Activities Hazardous Area (Zone 1 or 2)

17.1 Meggar Testing HV – See E1.1 Replacing Pig Tail at Wellhead (Isolated) Fluid Shot Electrical Isolation - HV Commissioning ESP, ESPCP & PCP (Will require gas test if breaking hydrocarbon envelope) 17.6 Trouble shooting ESP, ESPCP, & PCP (Controlled under

Intrinsically safe Equipment to be used

No Permit Required. Controlled by ESR’s N/A N/A Activity Controlled by ESRs

17.2 17.3 17.4 17.5

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Non Hazardous Area

No Permit Required.


No Permit Required.

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Petroleum Development Oman LLC Activity. ESRs. See E1.1 No Permit Job to be signed by Electrical Supervisor) 17.7 ESP Powered by Generator (Controlled by ESRs See E1.1)

3.5.5

Location of Work Controlled by ESR’s

Controlled by ESR’s No Permit Required. Controlled by ESR’s

Type of Permit Required in Electrical Installations owned by Power Systems Operations The type of Permit required depends on whether the work is in a Zone 1 or 2 of a Hazardous Area, e.g. near fuel gas systems or in a non-hazardous area. Activity.

Location of Work Hazardous Area (Zone 1 or 2)

E1.

Work in Electrical Section15.8)

Installations

(See

E1.1 Work requiring an electrical safety document as specified in Electrical Safety Rules (ESRs) (Activity 3.1) E1.2. Periodic Electrical lnspections at unmanned substations and power stations as per ESRs and Electrical Safety Operating Procedures (ESOPs), carried out by Power Systems Operations own contractor staff. E1.3. All construction activity such as excavation work, civil and electrical work, lifting operations using crane, shot blasting and painting etc. by third party or PDO supervision. (Use equivalent Activities from 3.6.1) E1.4. Third party periodic visits to electrical substations and power stations e.g. Telecoms/SCADA, Area Services for routine electrical work. E1.5. Live Line Washing on overhead lines to process field facilities with or without auto-reclosers.

No Permit Required. Controlled by ESR’s No Permit Required. Controlled by ESR’s

E1.6 The Opening of Live Electrical Junction Boxes by Electrical Authorised Persons (Hot Work) (Activity 3.2) E1.7. Low Voltage (LV) work requiring an electrical safety document as specified in ESRs E1.8 Non electrical work in electrical switchrooms, power stations or near overhead lines E1.9 Electrical Switching controlled by ESOPs and ESRs. E1.10 Electrical Maintenance Activities at unmanned substations and power stations as per ESRs and ESOPs, carried out by Power Systems Operations own and contractor staff. E1.11 Non-routine electrical work in power stations and substations, carried out by Power Systems Operations own contractor staff. E1.12 Non electrical work in power stations and substations, carried out by Power Systems Operations own contractor staff.

Page 24

Non Hazardous Area


No Permit Required. Controlled by ESR’s

No Permit Required. Use Access Control Form No Permit Required. Use Limitation of Access (LOA) No Permit Required. Controlled by ESR’s No Permit Required. Controlled by ESR’s No Permit Required. Use Limitation of Access (LOA)

No Permit Required. Controlled by ESR’s

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Work in Other Areas under the Control of PDO Work in areas under the control of PDO other than Process Facilities, Hydrocarbon Areas and Electrical Installations may not require a Permit to Work; an example of such areas are Camp Services. For a Permit not to be required, certain additional job criteria also need to be met (e.g., familiar work, written procedure available, competent staff, etc). In addition, certain job requirements must be complied with before the work can start without a PTW (e.g., Job HSE Plan in place, TRIC card completed, diligent supervision, etc). Refer to 3.1.1 “Principle of Permitry” for further details. It is worth emphasising, that within PDO operating areas, Job Hazard Analysis shall be applied and Job HSE Plans put in place for any task which could adversely affect the health and safety of personnel, environment or plant and where the hazards and control measures need to be assessed. Contract Holders should ensure that Contractors HSE management measures include suitable safe systems of work, which may include the operation of their own Permit to Work Systems.

3.7

Other Work For any work not shown in the tables above, the hazards involved in the work are to be assessed by the Permit Applicant and Responsible Supervisor, and a Permit of the most appropriate Class shall be raised. The PTW System Custodian shall be advised if there is a need to include an additional Activity into the PTW system. Contract Holders should ensure that Contractors HSE management measures include suitable safe systems of work, which may include the operation of their own Permit to Work Systems.

3.8

Work in Areas Not Under the Control of PDO On occasions where PDO personnel (or contractors to PDO) are to perform work in areas not under the control of PDO, the following guidelines will apply:•

•

The Permit to Work system of the asset owner shall be complied with. PDO’s Responsible Supervisor or Area Authority shall countersign the Permit to Work issued and include additional conditions (if required).

If the Permit to Work issued by the asset owner is considered to be inadequate and is not able to be modified to the satisfaction of PDO personnel, then work is not to be allowed to commence.

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NO PERMIT JOB Number:_______________________ Work Description:

Location:_____________________________________________________ A. Questions Regarding Hazardous Areas 1. Is the work within the facilities?

YES

NO

2. Is the work within a hydrocarbon area?

YES

NO

3. Is the work in/ on electrical installations?

YES

NO

4. Is the work in a confined space?

YES

NO

5. Is a supplementary certificate required for the work?

YES

NO

If any of the questions above has a YES answer then a Permit to Work is required B. Questions Regarding Type of Work to be Done 1. Is the work familiar to the work force?

YES

NO

2. Is the work going to be undertaken by competent staff?

YES

NO

3. Is there a written procedure for the work?

YES

NO

If any of the questions above has a NO answer then a Permit to Work is required C. No Permit Job Requirements 1. Job HSE Plan been written for the work

YES

NO

2. Work Site Supervisor appointed for the work

YES

NO

Name of appointed Supervisor If a Job HSE Plan has not been written or a Supervisor is not named, then a Permit to Work is required.

Work Site Supervisor

Responsible Supervisor

Name:

Name:

Date:

Date:

Agreed duration and review date

Duration:

Approved:

Approved:

Review Date:

NO PERMIT JOB can only start when the above have been completed and signed by all parties Figure 3.1 – No Permit Job Page 26


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4

Worksite Examination and Restrictions on Permit Work

4.1

Worksite Examination Requirements The requirements for inspecting worksites before work starts are as set out in Table 4.1 below. Table 4.1 – Work Site Examination Requirements Permit Type

Examination by Permit Applicant & Responsible Supervisor

Examination by Area Authority

Process Facility

Hydrocarbon Area

Before Authorisation

First Day

Every Day

First Day

Every Day

CLASS A

YES**

YES

YES ***

YES

NO*

CLASS B

NO

YES

NO

NO

NO

* - Except where a Gas Test is required, as the Area Authority may wish to do the first Gas Test each day for Class A permits, otherwise he may delegate to an AGT (see 6.7.1 pre-validation) ** - The requirement for a worksite visit by Responsible Supervisor and Permit Applicant can be relaxed for certain tasks at the discretion of the Production Co-ordinator, and following a Risk Assessment being completed. In addition the Responsible Supervisor may delegate the worksite inspection to another person licensed as a Responsible Supervisor for that area. *** - For certain ongoing Class A activities inside a Process Area where the risks are clearly understood and controlled, the daily gas test (not the first gas test of the activity) may be delegated to a competent AGT. This should be agreed and approved by the Responsible Supervisor following a review of any potential activity conflicts. The AA however, must continue to carry out regular worksite visits during the ongoing activity. An exception to the requirement for an AA to carry out the first gas test of an activity is in relation to well cellar entry, where the inherent risk has been deemed as low, and the gas test will be undertaken by an AGT who has demonstrated adequate knowledge and understanding of his duties.

4.2

Restrictions on Hot Work in Hazardous Zones Hot Work is not allowed in areas classified as Hazardous Zone 0 or Hazardous Zone 1, unless absolutely essential. Hot Work includes all open flame work and other work that may cause sparks, such as grinding, electrical work or vehicle entry.) Responsible Supervisors must ensure that all other ways of doing the job are impractical before allowing Hot Work in these zones. If all alternatives to Hot Work as a means if carrying out an activity in an area classified as Zone 0 or Zone 1 have been considered and ruled out as impractical, the following action must be taken: •

•

Page 27

The process system(s) which resulted in the area being classified as Zone 0 or 1 must be shut down, isolated and de-pressurised, so that the hazard which caused the area to be classified as Zone 0 or Zone 1 is removed for the period of work. If specifically approved by the Responsible Supervisor, a pressurised habitat may be built to create a sub-environment within an otherwise Zone 1 area where Hot Work may be done without creating a fire hazard. The habitat must be examined before use and approved by the Area Authority, Responsible PR-1172 – Permit to Work System

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Supervisor, and Production Co-ordinator continuous gas monitoring shall be required. A Job HSE Plan shall be produced identifying all hazards, and the controls required to prevent an incident. A Class A Permit is then to be raised and the work carried out in accordance with the requirements of the Job HSE Plan.

•

4.3

Limits on the Amount of Work under an Area Authority The maximum number of Permits that can be allowed under the control of one Area Authority is: •

6 Validated Class A Permits at any one time;

14 Validated Permits in total (Class A + Class B, but max 6 Class A) The maximum number of permits that is allowed under the control of one Area Authority can be adjusted at the discretion of the Responsible Supervisor, in conjunction with the Area Authority, following a risk assessment, and completing a waiver form as per Appendix 9. Alternatively, extra Area Authorities may be provided. Also, under their discretion, Responsible Supervisors can limit the size or number of working crews under the control of one Area Authority. •

If an additional Area Authority is provided, he must remain at the work location whenever more Permits than allowed by the limits above are validated.

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5

Responsibilities of Persons Signing Permits

5.1

People who Sign the Permit Documents Table 5.1 below lists the licensed roles in the PTW System, and the job titles of people who normally sign in each role. Table 5.1: PTW System Roles Role in PTW System Permit Applicant

Examples of Job Titles PDO Supervisor Contractor Supervisor

Production Co-ordinator

Production Co-ordinator

Permit Co-ordinator

Permit Co-ordinator

Production Supervisor


Production Supervisor

PDO Site Representative

Utilities Foreman Area Authority

Station Operator

Inspectors

Utilities Technician Permit Holder

PDO Technician Contractor Foreman

Other Affected Custodian

PDO Supervisor

Authorised Gas Tester

Person licensed as Gas Tester.

Utilities Foreman

Normally, four different people will fulfil the roles of Permit Applicant, Responsible Supervisor, Area Authority and Permit Holder. On some occasions (e.g. emergency breakdown repairs) when it is difficult to provide four people, certain people may fulfil two roles. See 5.8. The responsibilities of each role are described in the paragraphs below.

5.2

Permit Applicant For a new Permit the Permit Applicant must: •

•

•

•

•

Page 29

Using Checklist 1 (Appendix 11) as an aid, fill in the Header and Box 1 of the Permit, including a clear Work Description, and realistic planned start and completion times for the Work. Fill in the Application section of any Certificates required with the Permit. Produce a Job HSE Plan identifying work and location hazards, and necessary controls. The worksite should be examined when producing the Job HSE Plan, except for Class B tasks at remote sites where there are known to be no location hazards, such as overhead/underground services. If required by 4.1, examine the worksite with the Responsible Supervisor to check that the Job HSE Plan includes all necessary controls. Obtain the signature of an "Other Affected Custodian" when required. PR-1172 – Permit to Work System

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•

•

•


Ensure that the Permit has been authorised by the Responsible Supervisor before it is given to the Permit Holder. NO WORK may be done unless a Permit is Authorised and Validated. Ensure that there is a licensed Permit Holder in charge of the work for all periods when work is being done under a Permit. Ensure that the Permit Holder is briefed on the work, hazards and controls.

When no more work will be done on a Permit, the Permit Applicant must ensure that the Permit Holder signs the Permit in the Cancellation Section and gives it to the Area Authority for Cancellation. Permit Applicants must inform the Responsible Supervisor in writing by 1600 hrs the Permits which he requires Validating for the next day. Information on the roles that a licensed Permit Applicant can fulfil are contained in 5.8.

5.3

Production Co-ordinator The Production Co-ordinator is responsible for countersigning all Class A permits, and process isolations on hydrocarbon systems. The only exception to this relates to activities on wells, where the risk assessment has been carried out by the Production Coordinator and the risk deemed to be low.

5.4

Responsible Supervisor The Responsible Supervisor is responsible for the co-ordination of Permit work in his area, and for any worksite examinations required before Authorisation of a Permit. For Class A Permits, the Responsible Supervisor must: •

Examine the worksite, normally with the Permit Applicant, before Authorising the Permit, to ensure that all hazards have been identified and controls specified on the Job HSE Plan. He may however delegate this (see 3.2.1). In addition this may be relaxed in certain cases – see 6.3.1

Decide whether it is necessary to restrict other work at the site while the Class A work is being done. When authorising any Permit, the Responsible Supervisor must: •

•

Ensure that the work description is clear, complete and correct, discussing it with the Permit Applicant where necessary.

•

Agree that the work should be done on this equipment at the proposed time.

•

Ensure that all hazards have been identified.

•

•

•

Review the Job HSE Plan to ensure that it includes the controls needed to prevent harm to personnel, equipment and the environment. Add to the Job HSE Plan any additional controls which are required for the work. Write on the Permit the time for which it is authorised for work.

Sign the Permit to Authorise it. Each day, the Responsible Supervisor must give the Area Authority a list of the Permits that he can validate that day. The Responsible Supervisor must have checked that these jobs will not conflict with each other or with operational work. The Work Tracking System printout should be used to do this. •

A Responsible Supervisor shall ensure that another person taking over his responsibilities is aware of the status of Permits in his area. Page 30 Printed 13/04/10 PR-1172 – Permit to Work System The controlled version of this CMF Document r esides online in Livelink®. Printed copies are UNCONTROLLED.



Information on the roles that a licensed Responsible Supervisor can fulfil are contained in 5.8.

5.5

Area Authority The Area Authority is responsible for Validating a Permit before work starts. He will normally do this at the Permit Issue Point for his area. The Area Authority must obtain approval from the Responsible Supervisor before validating any Permit which is not on the list given to him by the Responsible Supervisor. Before Validating a Permit, the Area Authority must: •

•

•

•

Ensure that the worksite preparations shown on the Permit or Job HSE Plan, including isolations, are in place. If required by the Permit ensure the work party follow their responsibilities declared on the TRIC Card and examine the worksite before the start of work to ensure that it is safe for work. Ensure that the work will not conflict with other work in the area. Confirm that conditions in the work area are still safe before each Validation of the Permit.

Attend TRIC talks for activities he considers may hold a higher level of risk. If, at any time, it is not safe for any work to continue, the Area Authority must stop that work. •

When work on a Permit is finished, or the Permit reaches the end of its Authorisation period, the Area Authority must: •

•

State on the Permit whether or not the work is complete For work in Process Facilities, check that the worksite has been left in a safe state.

•

When required, check that the equipment is operating correctly again.

•

Cancel the Permit.

An Area Authority shall ensure that another person taking over his responsibilities is aware of the status of Permits in his area. Information on the roles that a licensed Area Authority can fulfil is contained in 5.8.

5.6

Permit Co-ordinator The Permit Co-ordinator is responsible for safety co-ordination of activities through the use of the Permit Control Facility where appropriate.

5.7

The Permit Holder Before work starts on a Permit, the Permit Holder must: •

•

•

Page 31

Understand the work content and the requirements of the Job HSE Plan. Tell the work party about the work content and the requirements of the Job HSE Plan, ensuring that all members of the work party understand what is required. Ensure that the Permit is validated by the appropriate Area Authority before starting work each day. PR-1172 – Permit to Work System

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During the work, the Permit Holder must: •

Ensure that the Permit is displayed at the worksite whenever work is underway.

•

Ensure ‘Pause and Check’ is carried out.

•

•

•

•

Ensure that the Job HSE Plan and TRIC controls are complied with throughout the work. Stay at or in close visual contact with the Worksite at all times, to supervise the work party. Ensure that the worksite and equipment are safe whenever work is suspended, signing the Permit to confirm this. Tell anyone who takes over as Permit Holder about the status of the work and the requirements of the Permit and Job HSE Plan.

Stop work and move all personnel to a safe location if conditions on site become hazardous or the precautions on the Job HSE Plan become inadequate. A Permit Holder may only be in charge of: •

•

One Validated Class A Permit at any one time.

Or Up to 4 Validated Class B Permits, if they are at the same location, and within sight of each other, such that the Permit Holder may supervise all the tasks effectively. When no further work is to take place under a Permit, the Permit Holder must: •

•

Ensure that the site and equipment have been left safe.

•

Sign the Permit to indicate whether work is complete or not.

•

Return the Permit back to the Area Authority

Information on the roles that a licensed Permit Holder can fulfil are contained in 5.8.

5.8

Other Affected Custodian When a Permit will affect, or be affected by, another Supervisor’s area, this Supervisor will sign as Other Affected Custodian, and is responsible for: •

Agreeing that the work affecting, or affected by, his area can be done.

•

Identifying any additional hazards due to his assets.

•

Deciding on any additional precautions required due to potential hazards relating to his assets.

Any additional controls are to be added to the Job HSE Plan

5.9

Gas Tester An Authorised Gas Tester (AGT) is a person who has passed the Gas Testing Course and holds a current Gas Testers Card, and has passed either a Permit to Work Signatories or Holders Course. For Class A Permits, the appropriate Area Authority should do the first Gas Test each day, however this can be delegated to an AGT for certain jobs at the discretion of the Responsible Supervisor. The Area Authority must be an Authorised Gas Tester. Any Authorised Gas Tester may carry out further gas tests required during the day.

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Any Authorised Gas Tester may do gas tests for work covered by a Class B Permit.

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Petroleum Development Oman LLC In both cases, the Authorised Gas Tester must:

Gas test at the frequency stated on the Permit or Confined Space Entry Certificate.

•

Fill in the result of the gas test on the Gas Test Record and Sign it. When a test result indicates that it is NOT safe to work, the Authorised Gas Tester must:

•

Tell the Permit Holder to stop any current work.

•

Tell the Permit Holder and Area Authority that it is not safe to work, and why, so that the problem can be dealt with.

•

5.10 PTW Multi-Roles (Licensed Personnel) People licensed in PTW roles may also act in other roles, as shown in Table 5.2 However, there are restrictions on the number of roles that any one person may carry out on one Permit. These are shown in Table 5.3. Table 5.2 - Roles that May be Carried out by Licensed Personnel May act as


Area Authority

Permit Applicant

Permit Holder

Licensed as Responsible Supervisor

Yes

Yes

Yes

Yes

Area Authority

No

Yes

Yes

Yes

Permit Applicant

No

No

Yes

Yes

Permit Holder

No

No

No

Yes

For normal activities, it is expected that the Responsible Supervisor, Permit Applicant, Area Authority and Permit Holder will be four different people. In emergency or 3 breakdown situations, or for specialist work, this can sometimes be difficult to arrange. On these occasions a person licensed for one role can carry out another role as well, although there are restrictions to ensure that an independent review of the safety of the work is carried out. Table 5.3 - Roles that can be Filled by Any One Person on a Single Permit May act as


Area Authority

Permit Applicant

Permit Holder

Licensed as Responsible Supervisor

Yes

Yes (See Note 1)

No

No

Area Authority

No

Yes

Yes (See Note 2)

No

Permit Applicant

No

No

Yes

Yes

Permit Holder

No

No

No

Yes

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NOTES: 1.

In an emergency or during night time breakdown situations, a licensed Responsible Supervisor may sign as Responsible Supervisor and Area Authority. Some Area Authorities have been licensed as Responsible Supervisors to allow work to proceed without calling up the daytime Responsible Supervisor. This will allow two-man Permit operation if the Permit Holder has also been licensed as a Permit Applicant. This option is acceptable only in the night time breakdown situation when there are no other active Permits in operation. It is not intended that the normal daytime roles of the Responsible Supervisor should be delegated to the Operators at the remote stations.

2.

If the Area Authority has not been licensed as Responsible Supervisor, or if the Permit Holder has not been licensed as a Permit Applicant, it will be necessary to call up the daytime Responsible Supervisor. In this case the Area Authority will be the Permit Applicant.

3.

Specialist work can be (but is not limited to) any work that is not normal maintenance or engineering work. For such work, a licensed Permit Applicant can act as a Permit Holder.

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6


How the Permit to Work System Operates

6.1 6.1.1

The Permit Forms Class A Permit to Work An example of the Class A Permit is shown in Appendix 1. Class A Permits have a RED edge colour. The Permit comprise of an: Original

Worksite Copy (PINK)

1st Copy-

Permit Issue Point Copy (GREEN)

Information Informati on Copy-

Responsible Supervisor’s Supervisor’ s Copy (WHITE)

A Class A Permit shall be used for work as detailed in 3.6. and can be authorised for a maximum of 14 days, with Validation required each working day. 6.1.2

Class B Permit to Work The layout of the Class B Permit is shown in Appendix 2. Class B Permits have a DARK BLUE edge colour. The Permit comprise of an: Original

Worksite Copy (BLUE)

1st Copy-

Permit Issue Point Copy (GREEN)

Information Informati on Copy-

Responsible Supervisor’s Supervisor’ s Copy (WHITE)

A Class B Permit shall be used for work as detailed in 3.6. and can be authorised for a maximum of 14 days, with Validation required each working day.

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Class A and Class B Permit Forms The Rev 7 Permit forms are divided into Boxes which cover the following parts of the life cycle of the Permit: Box No

Function of Box

Completed By:

1

APPLICATION and Work Description

Permit Applicant

2

Certificates attached to the Permit

Permit Applicant

3

Gas Testing Requirements

Permit Applicant

3a

Worksite Examinations

Permit Applicant

4

Declaration by Applicant

Permit Applicant

5

AGREEMENT of Other Affected Custodian

Other Affected Custodian

6

AUTHORISATION of the Permit


6a

Extension Authorisation


7

Vehicle Access to Process Facility

Permit Applicant

8

Gas Test Record


9

Safety Co-ordination

PTW Coordinator/R.S.

10a

VALIDATION of the Permit

Area Authority

10b

ACCEPTANCE of the Permit

Permit Holder

10c

SUSPENSION of the Permit

Permit Holder

11

Cancellation Work Complete

Permit Holder / Area Authority

12

Cancellation Work not Complete

Permit Holder / Area Authority

13

Registration of cancellation

PTW Coordinator/R.S.

Figure 6.1 – Permit Life Cycle

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Petroleum Development Oman LLC 6.2 6.2.1


Applying for a Permit - Boxes 1 to 5 Obtaining and Filling in Permit Forms The list in 3.6 shows 3.6 shows by colour coding which type of Permit is to be used, depending on the work to be done, and the area where it will be done. Departments/Contractors who apply for Permits should keep their own pads of Permit forms. These may be obtained from PDO stores using appropriate SAP number. The Permit is divided into sections, called “boxes” in this manual. Do not write information outside these boxes N/A.. or have a line Where any box on a Permit form is not used, it should be marked N/A drawn through it. Boxes must not be left blank. blank . There are a number of tick boxes (e.g. Haz Zone 0 ) on the Permit to indicate area classification, gas test test options etc. These are to be ticked with with clear ticks  when required. Permits must be completed in ball-point pen, to ensure that all copies of the Permit can be read easily. Felt pen or pencil must not be used. used . NO changes to the wording on a Permit are allowed. If changes are required, a new Permit must be raised. The only exception is correcting small mistakes, where the mistake is crossed out and the change initialled by the Permit Applicant and Responsible Supervisor. Additions to the work scope are NOT ALLOWED under any circumstances. If an addition to the work scope is required, a new Permit shall be raised. It is at the Responsible Supervisor’s discretion whether an additional period of 24 or 72 hrs is required before he Authorises the new Permit and whether the additional workscope requires an additional site visit.

6.2.2

Application and Work Description – Box 1 Permit Applicant The Permit Applicant, normally the supervisor of the personnel doing the work, must have passed the Permit Signatories course, and must be licensed as a Permit Applicant, Area Authority, or Responsible Supervisor for the area in which the work is being carried out. The Permit Applicant must first choose which Permit he needs from the table in Section 3.6. The Permit Applicant will then fill details of the activity by entering the following information into the appropriate appropriate boxes. Header In the Header area at the top left of the Permit: •

•

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Write the Work Order title or a short description of the work in the Work Order title box. Tick the appropriate Hotwork box (Yes or No)


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In Box 1 of the Permit, enter: •

•

•

•

•

•

•

•

•

•

•

•

The location of the Work (e.g. Station Name), and the Worksite (the exact place in the Station where the work is to be done). For repetitive routine tasks (subject of a planned routine) across different stations, where the intrinsic hazard is the same, (i.e. NDT work, Beam Pump maintenance) and the site conditions are similar (e.g. No change in H2S classification,) the Responsible Supervisor may allow a number of stations or worksites to be identified on a single permit. There may be a particular activity that presents the same intrinsic hazards regardless of location e.g. NDT where the activity procedure is exactly the same each time. These activities can be included under the same permit with the agreement of the Responsible Supervisor. Activity Numbers that apply to the task (refer to section 3.6.1) The maximum number in the workparty should be agreed at the time of permit authorisation by the Responsible Supervisor, Area Authority, and Permit Applicant, and consideration should be given to worksite location and visibility of work party.. A documented Risk Assessment should be presented with the Job HSE Plan when the workparty strength exceeds 20. The Hazardous Area Classification of the worksite (shown on Hazardous Area drawings for the Station). Whether the work involves working with Naturally Occurring Radioactive Materials (NORM) or in a NORM Restricted Area (refer to SP-1170 Naturally Occurring Radioactive Materials ). Whether the work involves potential exposure to Mercury (refer to PR-1515 Onsite Mercury Management Procedure ) Whether the work is in an H2S Facility (shown on the H2S Facility listing in the Area Safety Case) and the station classification / designation The planned start and finish time for the work including preparation. Whether vehicle access to a Process Facility will be required (details of the vehicle are to be written on the form under vehicle access). The number of the Work Order, or Engineering Work pack for the work. This is very important, as it is used to link the permit to the daily schedule in the work tracking system. The numbers of any Permits for other parts of the work (in the Associated Permit Number boxes). This will include any previous Permit for the work. If the work is in the “frozen plan” or not - the Area Planner should initial

Any special equipment to be used, especially if it may introduce a hazard. The Work Description must include enough information to allow Responsible Supervisors to identify the hazards involved in the work and the Precautions necessary to control them. •

A single Permit must not to be used for a sequence of separate pieces of equipment, where each piece of equipment will be shut down, worked on and put back into service, whilst the other equipment remain in service. This is to avoid confusion over isolations. The only exception allowed is work on electrical or electronic systems, such as lighting, which can be isolated and worked on in sequence. When a Permit is written for fault finding, it is important that the work description does not allow the work party to proceed with repair activities without the risks involved being assessed. The work description should include: •

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A description of the fault to be investigated. PR-1172 – Permit to Work System

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•

•

A description of the types of fault finding work that may be done. The point at which work should stop, so that a further Permit for the repair can be raised.

Job HSE Plan The Permit Applicant shall produce a Job HSE Plan (See Section 11.2) which will: •

Identify the hazards due to work and its location,

•

Define the safety precautions required.

•

•

Include a worksite examination to identify and assess the hazards (except for Class B Permits at remote locations where it is known that no other facilities, such as overhead or underground services could create a hazard to the work party) Include the permit number to identify that each Job HSE Plan is unique for the particular activity.

In addition a quality TRIC discussion shall be held. 6.2.3

Certificates Attached to This Permit The Permit Applicant should attach the following certificates to the Permits if they are required: •

Electrical Isolation/De-isolation

•

Mechanical Isolation (Appendix 3)

•

Mechanical Isolation Continuation (Appendix 3)

•

Excavation (Appendix 6)

•

Overhead Line Clearance (Appendix 8)

•

Electrical Safety Document

•

Electrical Immobilisation / Mobilisation

•

Radiography (Appendix 7)

•

Safeguarding Isolation

•

Confined Space Entry (Appendix 4)

1

The Permit Applicant shall tick "  " the appropriate column to show which Certificates are attached, and then write the number of each certificate in the ‘Certificate Number(s)’ section of the PTW. If more than one Permit is to be worked on within the same isolation boundary, the isolation for each permit shall be recorded separately on its own Isolation Certificate. This will minimise the risk of an isolation being removed before all work is complete. 6.2.4

Gas Testing Requirements A Gas Test is required whenever:

If more isolation points are required than are available, or if the isolation shall be left in place after the Permit has been cancelled, requires an Isolation Certificate to be raised. Page 40


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•

Hot Work is to be done in an area where hydrocarbons or other flammable gases/vapours may be present.

•

Vehicle Access is required to a Process Facility.

•

Diesel engine driven or non-intrinsically safe equipment is used

•

Entry is to be made into a Vessel or other Confined Space.

•

Work is at a place where toxic gases/vapours may be present.

When a Gas Test is required, the Permit Applicant shall: •

Tick the gases to be tested for.

•

Indicate how often the test shall be repeated.

•

State if continuous monitoring for gas is required during the work.

Further guidance on gas testing can be found in Procedure . 6.2.5

3.6 and PR-1154 Gas Testing

Worksite Examinations The Permit Applicant shall indicate when the Validator must do a Worksite Examination (i.e. First day or every day.) The minimum requirements for Worksite Examinations are listed in 4.1.

6.2.6

Agreement of Other Affected Custodian Where the Responsible Supervisor considers that the work will affect, or be affected by, another Custodian’s area, the Responsible Supervisor shall define the most appropriate way of obtaining the agreement of the ‘Other Affected Custodian’ (Permit Hand carried by Permit Applicant, fax, email, etc.). The Other Affected Custodian shall check if there are any additional precautions needed for the work, as a result of work or hazards in his area. If necessary, he shall add to those specified on the Job HSE Plan. When he is satisfied that the Permit and Job HSE Plan will control the work safely, the Other Affected Custodian will sign, with name, time and date if the actual Permit is available to him. If not, written agreement by fax / email may be given. This shall then be attached to the Permit. The most frequent example which requires a signature from an Other Affected Custodian is for work within 100m of a drilling rig, where the PDO Drilling Supervisor is the 'Other Affected Custodian'. NOTE: No specific Training or Licensing in the PTW System is required for the Other Affected Custodian.

6.3 6.3.1

Authorisation and Coordination Authorisation When preparation of the Permit has been completed, the Permit Applicant should take the Permit and Certificates to the appropriate Responsible Supervisor for Authorisation. Responsible Supervisors require notice of a Permit, to allow time to discuss the work, and, for higher risk work, for examination of the worksite. The notice periods required are:

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•

Class A Permits - 72 hours

•

Class B Permits - 48 hours. PR-1172 – Permit to Work System

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NOTE: The Responsible Supervisor may allow shorter notice periods for essential unplanned work.

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When Permits are received from Permit Applicants, the Permit Applicant should ensure that details of the planned Permits are entered into the Work Tracking System for the date they are required and the Responsible Supervisor before authorising the Permit should check that: •

•

•

•

•

•

All necessary information has been written in Boxes 1-5, and including vehicle access and that the information can be clearly understood. The Task Description is correct for the work to be done. The Job HSE Plan is attached and identifies all hazards that may affect the work, and the controls required to ensure that the work can be done safely. The Isolations required have been identified (in conjunction with the competent personnel i.e. Senior Foreman or Authorised Electrical Person and where necessary the Permit Applicant), and have been written on the Isolation Certificate with the Isolation Certificate numbers written on the Permit. The necessary Electrical Safety Documents have been raised, and signed by a Senior Authorised Electrical Person if Electrical Work is involved. Their numbers should also be written in the “Certificates Attached” section of the Permit. Any gas testing requirements have been listed and are correct for the types of gas releases that might occur during the work.

The permit qualifies for pre-validation as per 6.7.1. If it does qualify, this should be agreed during Authorisation If additional Preparations or Precautions are required, the Responsible Supervisor shall add them to the Job HSE Plan and ensure they are agreed with the Permit Applicant. •

If too many changes are needed to a Permit or other documents required for the work, the Responsible Supervisor may reject the Permit, and ask for a new one to be written. The Permit Applicant should be informed of what was wrong with the first Permit. For Class A Permits, the Responsible Supervisor must examine the worksite, with the Permit Applicant, to ensure the work is fully described on the Permit and that all safety aspects have been considered. However, there are certain scenarios where this can be relaxed under the direction of the Production Co-ordinator, and only following a discussion by all parties, and a documented Risk Assessment completed. For Class B Permits the Responsible Supervisor need not examine the worksite unless he considers this necessary. Once he is satisfied that the Permit is correct for the work, the Responsible Supervisor shall set an Authorisation period for the Permit. The maximum Authorisation period is 14 days. The period set should take account of the planned work schedule stated in Box 1, to avoid Permits being authorised for periods much longer than required, but also to prevent a further Permit being required if the job should over-run slightly. The Responsible Supervisor shall then authorise the permit. Once a Permit has been authorised by the Responsible Supervisor, the only changes that can be made to it are the addition of new controls to the Job HSE Plan. These changes are only to be made by the Responsible Supervisor or the Area Authority. Deletion of controls is not allowed. If any changes to controls are made, the Permit Applicant shall be informed. The Permit Applicant is then responsible for ensuring that the Permit Holder is fully briefed on the work content, precautions required and the requirements of the Job HSE Plan.

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If an extension to the permit (after the initial authorised duration period) is required to complete the final stages of an activity without applying for a new permit, this extension needs to be authorised in Box 6a (available on Rev 7 form only).

NO ONE MAY AUTHORISE A PERMIT FOR WORK THAT THEY WILL DO THEMSELVES 6.3.2

Activity Control and Co-ordination by Responsible Supervisor The total workload at each location will have been reviewed at the daily planning meeting for the Area. This should identify and eliminate any possible conflicts. However, it is most important that the Responsible Supervisor looks in detail at the Permit requests for the following day, and eliminates any safety conflicts. At 1600 hrs each day (or earlier during Ramadan) the Responsible Supervisor shall review the work for each location for the following day, using: •

•

•

The daily schedule (from Work Tracking system Authorised Permits due to start next day) Permits for any additional work that is urgently required. Lists from Permit Holders / Permit Applicants showing which Permits have not been completed and will be required the following day.

The Responsible Supervisor shall identify any potential conflicts between activities, and decide which Permits may be validated for work the following day. The Responsible Supervisor is then to update the status of these Permits to Validated within the Work Tracking system. The Responsible Supervisor shall re-check the list of Validated Permits for each location before start of work on the following day, and then make available the Tracking System Report for each location to the Area Authority. Class A Permits in a Process Facility should only be allowed to be validated if the Area Authority will remain at the Facility when work is underway. There will be a further check for conflict by the Area Authority, at the Permit Issue Point when Permits are validated. (See 6.7)

6.4

Briefing of the Permit Holder When the Permit is authorised, it is returned to the Permit Applicant. The Permit Applicant must then brief the Permit Holder on the work and hazards, and how these will be controlled, using the Job HSE Plan. The Permit Applicant is then to give the Permit, Certificates and Job HSE Plan to the Permit Holder, who will take them to the Area Authority for Validation, after any necessary Isolation. The PTW Holder will use these documents during the TRIC discussion. It is essential that the Permit Holder brief the Area Authority on the scope of the work that is to take place. The Area Authority shall be absolutely certain of the scope of the work before allowing any work to commence.

6.5 6.5.1

Isolations Mechanical Isolation and De-Isolation Approval and Recording Where a mechanical isolation is required for a task, the Isolation is recorded and authorised on an Isolation Certificate (See Appendix 3). Details of the isolation process are included in Section 7.

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Details of the isolation are to be written on the Isolation Certificate by the Area Authority or Responsible Supervisor. The Responsible Supervisor is then to authorise the Isolation. When the equipment has been isolated, the person who did the Isolation inserts the Tag Label Nos. and also signs the certificate. On extensive isolations, a Mechanical Isolation continuation Certificate may be required. 6.5.2

Electrical Isolations Electrical Isolations/Immobilisations must be authorised, recorded and done in accordance with PDO Electrical Safety Rules. An Electrical Mobilisation / Immobilisation Certificate is to be used.

6.6

Vehicle Access Vehicles are not permitted to enter or to drive within 50m of a Process Facility. If a vehicle is required to enter a one of these areas as part of a work activity, a Permit is required. Exceptions are that a Permit is not required for: •

•

•

Vehicle access to a pig trap area for pipeline pigging operations covered by authorised procedures and listed in the approved programme. However, the same requirements for entry and gas testing apply. Continuous gas testing is required if the vehicle remains running. Travel to and from the facility in crew vehicles via the normal marked route to the facility parking area. Use of delivery trucks, as covered in 15.6.6.

If vehicle access to a Restricted Area is required, the Permit Applicant shall write in Vehicle Access Section of the Permit for the work. •

•

•

The vehicle type. The location to which access is required, together with an associated route plan which shall be attached to the permit. The route plan shall be a plot plan of the station with the vehicle route and final position marked clearly on it. The reason for vehicle access.

NOTE: Vehicle access should be granted for delivering essential materials or equipment only. It should not be used for general access or transport of personnel, and the vehicle should be removed immediately the delivery is completed. In the case of crane use, this requires continuous gas monitoring. A satisfactory Gas Test is required before each vehicle access or movement. Details and results of the Gas Test are to be entered on the permit form. The Station gates must be closed after each entry or exit . In addition, the Permit Holder should verify the vehicle is free of mobile phones or other sources of ignition e.g. Matches or lighters. NOTE: This approval is not to be used to authorise the passage of high vehicles beneath overhead power lines, for which a separate Overhead Line Clearance Certificate is required.

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Co-ordination and Validation at the Issue Point Permits must be validated by the Area Authority responsible for the worksite, before work can start. Before Validating a Permit, the Area Authority must carry out a co-ordination check for safety conflicts between activities. To do this he must: •

•

•

Check the Work Tracking list to ensure the Permit is Valid for that day. If it is not on the list, the Responsible Supervisor will give guidance on whether that Permit may be validated. Check that there are no other conflicting activities, which may be operational, covered by other Permits, or covered by Well Handover Certificates, Pigging Authorisation Forms etc. Mark the location of the work on the Permit Location Board (See Section 8.3)

When the Area Authority is sure that the work will not cause a conflict, he shall satisfy himself that the worksite is safe for the work. To do this, he must: •

•

•

•

•

Do any Area Authority preparations required by the Job HSE Plan to make the worksite safe for work to start. Where required by 4.1, examine the worksite with the Permit Holder to ensure that the Permit Holder preparations as required by the Job HSE Plan have been completed to make the worksite safe for work to start. If Isolation is required and has not already been completed, do the Isolation, and complete the Isolation Certificate of the Permit as appropriate. If a Gas Test for Class A work is required, do this immediately prior to Validation of the Permit, with results recorded in Box 9. Ensure that the Permit Holder understands the work and the precautions which are required.

When satisfied that it is safe for work to start, the Area Authority shall validate the Permit and initial the Area Authority Preparations part of the Job HSE Plan.

THE VALIDATION PERIOD SHALL BE A MAXIMUM OF 12 HOURS, OR THE END OF THE SHIFT WORKED BY THE AREA AUTHORITY, WHICHEVER IS SOONER. Class A Permits should only be validated if the Area Authority will remain in the area of the work when work is underway. NOTE: There are exceptions to the validation period & procedure which are detailed in section 15.6.16 & 15.12 6.7.1

Pre-Validation Pre-validation is where the Area Authority agrees during daily suspension to prevalidate a permit from 07.00 the following day. The conditions for this process are detailed below. PRE-VALIDATION CAN NOT BE USED FOR THE FIRST VALIDATION. •

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The type of task falling into this category is agreed at the time of permit submission between the Permit Applicant and Responsible Supervisor and normally only applies to work outside of a process area. However, there may be ongoing activities inside a Process Area which the Responsible Supervisor agrees can be accepted for pre-validation PR-1172 – Permit to Work System

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•

•

•

•

•

6.8


The work must be an ongoing repetitive job e.g. Flowline installation in a hydrocarbon area, where the job task or method will not change the following day. The task progress and any pre-validation conditions must be discussed with the Area Authority at the time of daily permit suspension, The permit is moved to the “validated” section of the permit rack with a note attached and visible as PRE-VALIDATED for 07.00. The work cannot start until after 07.00 the following day. Any pre-validation gas tests are carried out by an AGT (who may or may not be the Area Authority) at the discretion of the Area Authority. The Permit Holder is still responsible for carrying out a robust Tool Box Talk.

Acceptance by the Permit Holder When satisfied that the worksite is safe, the Permit Holder shall sign the Permit in the presence of the Area Authority.

THE PERMIT HOLDER CANNOT ALSO BE THE AREA AUTHORITY. The Permit Holder has the right to refuse to sign the Permit Acceptance until he is satisfied that the worksite is safe. By signing the Permit the Permit Holder is agreeing to the following: •

That he fully understands the work and precautions.

•

That all members of the work party are fully briefed.

•

That the Job HSE Plan will be complied with.

•

•

That the Permit will always be displayed at the worksite in a plastic wallet when work is in progress. That no work will be done unless the Area Authority has validated the Permit.

That the worksite will be left in a safe condition on completion or suspension of work. A Permit Holder may only be in charge of: •

•

•

One Validated Class A Permit at any one time. Up to a total of 4 Class B Permits, if they are at the same location, and within sight of each other, such that the Permit Holder may supervise all the tasks effectively.

A Permit Holder in charge of a Validated Class A Permit may not be in charge of Class B Permits at the same time. The Permit Holder’s signature must appear on both the Worksite and Permit Rack copies of the Permit. This means that: •

•

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When work is in a station, the Area Authority should put the Worksite and Permit Rack copies of the Permit together for the Permit Holder to sign. Where the worksite is remote from the Permit Issue Point, and a Worksite examination before work starts is required by 4.1, the Area Authority shall take the Worksite and Permit Rack copies of the Permit to the worksite where the Permit Holder can sign them.


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Where the worksite is remote from the Permit Issue Point, and a Worksite examination is not required by 4.1, the Permit Holder shall sign the GREEN copy of the Permit before leaving the Permit Issue Point, to indicate that he intends to start work. He shall sign the worksite copy of the Permit at the worksite, when he is satisfied that it is safe for work to start. No work may take place under the Permit until: •

•

The Permit has been validated.

•

The Permit Holder has signed to accept it.

The Permit is displayed at the Worksite. The Area Authority's verbal approval shall be obtained before one Permit Holder hands over responsibility for a Valid Permit to another Permit Holder. The new Permit Holder shall accept the Permit by signing the next line in Box 10b of the Worksite and Permit Rack copies of the Permit. When remote sites are involved, the new Permit Holder shall contact the Area Authority for approval and sign the worksite copy, the Area Authority is then to write the name of the new Permit Holder on the Permit Rack copy. •

During the handover briefing, the outgoing Permit Holder should brief the new Permit Holder on the topics suggested for briefing of the work party in 6.10.

6.9

Actions after Validation When the Permit has been signed by both the Area Authority and Permit Holder, the top (worksite) copy (PINK or BLUE) should be given to the Permit Holder, together with the Worksite copy of any associated Certificates. The Permit Holder is responsible for ensuring that the Permit and Job HSE Plan are placed in an approved wallet, displayed in a safe position at the Worksite where it can be seen clearly, and is kept there whilst work is being done.

NO WORK IS TO BE DONE UNLESS A VALIDATED PERMIT IS CLEARLY DISPLAYED AT THE WORKSITE IN A PLASTIC WALLET. Work may now start, following briefing of the workforce (see 6.11 below.) The Area Authority is to place the GREEN copy of the Permit, together with Permit Rack copies of any associated Certificates in the VALIDATED section of the Permit Rack.

6.10 Briefing the Work Party – the TRIC Talk Toolbox Talk Risk Identification Card discussion is the briefing given by either the Permit Applicant or Permit Holder to all who are involved in the work controlled by a permit. These briefings are given before the work commences, and are given on the day at the worksite. The Permit Holder is to ensure that the Work Party is fully aware of the Work Content and Precautions to be taken. TRIC Talks are given for: •

•

•

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All jobs. Routine jobs when personnel are unfamiliar with the location or the tasks to be undertaken. In cases where personnel may have difficulty reading or understanding the Permit, or Certificate, or safety conditions associated with a job.


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Petroleum Development Oman LLC TRIC talks: •

Discuss the hazards of the job using the Job HSE Plan, then the location specific hazards using the prompts on the card itself.

•

Explain the plan for the activity

•

Identify individual responsibilities

•

Review the procedures to be used during the work.

Must be held at the worksite just prior to starting the activity, if not possible due to environmental issues, at least a site visit must be conducted. Topics that are covered by TRIC Talks include: •

•

The work to be undertaken at the work location.

•

The work plan and worksafe methods to be used to do the work safely.

•

What individuals in the work party will actually be doing during the completion of the work.

•

Particular skills of individuals involved.

•

Access and Evacuation procedure refreshers.

•

The work environment and any particular hazards that have controls.

•

The work description of the Permit.

•

The Job HSE Plan precautions, protection and Worksite preparations.

•

The equipment involved.

•

The materials to be used.

•

Any isolations which need to take place.

•

Any potential conflicting activities.

•

Questions and discussion from all work party personnel.

6.11 Supervision of the Work Throughout the work, the Permit Holder is responsible for ensuring that the Work Party complies with the requirements of the Permit and Permit system. The Permit Holder must remain at, or in close visual contact with, the worksite at all times. NOTE: The Job HSE Plan and the TRIC are the most useful tools to ensure work is carried out safely at the work location. It needs to be applied diligently at every stage of the job. It is also important that Pause & Check is used to identify any additional hazards that may be present since the activity started.

6.12 Gas Test Record Gas Testing and Monitoring shall be carried out as required by the Permit. For Class A Permits, the appropriate Area Authority is to do the first Gas Test each day. The Area Authority must be an Authorised Gas Tester. Any Authorised Gas Tester may carry out further gas tests required during the day. Any Authorised Gas Tester may do gas tests for work covered by a Class B Permit. The results of the Gas Test are to be recorded on the permit form, except for Confined Space results, which are to be recorded on the Confined Space Entry Certificate. When Page 49


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the permit form is full, the Additional Gas Test Record form (See 10.2.2) shall be used to record further results. Gas Tests are to be done before work starts, and at the frequency stated on the Permit. An extra test is required before work re-starts, if the worksite is left unattended for more than one hour. In addition to Gas Testing, continuous monitoring may be required. This will have been specified on the Permit. A Permit Holder may supervise work for which continuous gas monitoring is required without being licensed as a Gas Tester. He must, however, have been trained in the use of the gas monitor. If gas or other hazardous atmosphere is found at any stage, work must stop. The Permit is to be suspended as described in 6.13. The Responsible Supervisor must be informed as soon as possible.

6.13 Suspension of Work 6.13.1 Reason for Suspension A Permit must be suspended if any one of the following occurs: a.

An unsafe situation develops which requires the work to be stopped, for example: o

A Reportable Incident occurs during the work.

o

A Gas or Oil leak occurs near the work.

Anyone suspects that an unsafe situation exists. In this case he has the Authority and Responsibility to stop the work. The work is delayed or interrupted for more than 4 hours, for any reason.

o

b. c.

The work needs to be stopped to allow conflicting work of a higher priority to proceed. In this case the Permit Holder is to be instructed to stop work by the Responsible Supervisor/Area Authority and is to be informed of the reasons. It is the responsibility of the Area Authority to ensure that it is safe to stop work and leave the Worksite in its current condition.

d.

The equipment is to be de-isolated so that it can be tested after being worked on.

6.13.2 Permit Suspension When a Permit is to be suspended, the Permit Holder shall take the following actions: •

•

•

•

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Check that the Worksite and equipment affected by the work have been left in a safe condition. Sign under “Suspension” on the PINK/BLUE copy of the Permit to confirm that work has been suspended. Take the Permit to the Issue Point, sign the Green copy and give it to the Area Authority who will keep it there until ready to re-start work. If the work is in a Process Facility, this must be done. For work at remote locations, the procedure below may be used. For some work at remote locations, it is not practicable for the Permit Holder to return the Permit to the Issue Point when work is stopped. For this type of work the Worksite Supervisor should agree with the Area Authority that the Permit will be taken to an agreed collection point (e.g. a box at the Permit Issue Point or PDO Camp offices.) The Area Authority will then take the PINK/BLUE copies PR-1172 – Permit to Work System

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of suspended Permits back to the Issue Point the next time that the station is open. NOTE: The steps above may be used for pre-validations with agreement from the Area Authority. This may require the worksite and the permit board copies of the permit being signed separately. Permits do not require to be suspended for meal breaks. However if a work party are called to another more urgent job before they have finished the first one, during a meal break away from the station, the Holder is to inform the Area Authority, who will inspect the worksite and suspend the permit himself. Once a Permit has been suspended no work covered by that Permit may be done until the Permit has been Re-Validated as described in 6.15 below. Worksite and Permit Issue Point copies of all suspended Permits are to be kept in the Suspended section of the Permit Rack. If a Permit covers more than one station (see 6.2.2), when suspended to move to another station, the worksite and permit board copies should be gathered together and taken to the next station. 6.13.3 Stoppage and Re-Starting of Work following an Alarm in a Station Stopping Work All work is to stop immediately following an Evacuation Alarm in any facility. Each Permit Holder is to ensure that his worksites have been left in a safe condition, and is then to evacuate the site as quickly as possible. If the unplanned stoppage of work may cause a dangerous condition, the work party is to take the emergency actions stated on the Job HSE Plan. When the alarm condition has cleared, the Worksite Copy of the Permit is to be taken to the Permit Issue Point or Area Authority. Re-Starting Work If the Alarm was not caused by an actual alarm condition, the Area Authority may verbally re-authorise each Permit Holder to re-start work once the all clear signal is given. Where the Alarm was caused by an actual alarm condition, the Responsible Supervisor or Area Authority may require Permits to be suspended and Re-Validated following the normal Re-validation procedure. A further Worksite examination is required if the problem which caused the alarm could have changed conditions at the worksite.

6.14 Changeover of Personnel 6.14.1 Changeover of Area Authority during Validation Period of Permit When a new Area Authority takes over, he must re-validate all Permits in his area. For those within his station and the immediate area, he will visit the sites and sign both copies. For Permits at remote locations he will sign the green copy at the Issue Point when he takes over and the worksite copy is returned at the end of the day. 6.14.2 Changeover of Permit Holder Within a Process Facility, the new Permit Holder must obtain the Area Authority’s approval to change and sign both copies of the permit. At remote locations, where he is unable to visit the Area Authority, he must speak to the Area Authority, and sign the worksite copy when he takes over. The AA will change the name of the Permit Holder Page 51


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on the green copy, which will be signed when the Permit Holder returns to the station. The outgoing Holder is not to leave the worksite until he has fully briefed the new Holder and the new Holder has signed to accept the Permit in his presence.

6.15 Permit Re-validation The Re-validation process is exactly the same as the Validation and acceptance process described in 6.8 and 6.9, although the requirement for worksite inspections will differ, as shown in 4.1. If the Area Authority changes during the work period the new Area Authority is to ReValidate all Permits in his area. This is done by signing ALL the green copies at the Permit Issue Point. For Class ‘A’ Permits he must examine the worksites and sign the Worksite Copy of each Permit. For Class ‘B’ Permits the Worksite Copy is to be signed by the new Area Authority on the return of the Worksite Copy to the Permit Issue Point. After Re-validation of the Permit, the Permit Holder is to satisfy himself that the Worksite is safe, and sign to accept the Permit. Once all spaces for Re-validation have been used, a new Permit is required.

6.16 Permit Cancellation 6.16.1 Requirements for Cancellation A Permit shall be cancelled when any of the following occur: •

The Work is complete.

•

The Work has not been completed, but a new Permit is required.

•

The Permit has reached the end of its Authorisation Period.

•

•

The Work is to be suspended until a date after the Permit Authorisation Period, e.g. when spares will be required to repair an item of equipment. The Work to be done is found to be different from the Work Description on the Permit. A new Permit must then be obtained for the work.

6.16.2 Permit Return by Permit Holder If work is complete the Permit Holder shall sign the box to confirm that the work is complete and the worksite left in a safe condition etc. If work is not complete, but cannot re-start until after the Permit Authorisation period has expired, the Permit is to be cancelled by signing it off under - “ Work Not Completed”. Isolations may be retained under the Extended Period Isolation procedure described in Section 7. It is not necessary to suspend a Permit before it is cancelled, unless the permit has been used for carrying out work. If a permit is about to expire and the work is ongoing, the new permit number should be written under “Work is continuing under Permit No……….” with associated reference to any isolations. A signature in the box confirms that the worksite has been left in a clean and safe condition, with all tools and equipment removed. Page 52


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When “Permit Cancellation” has been signed, no further work may take place under that Permit.

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For work at remote locations, it is sometimes not practicable to return the Permit to the Issue Point when work is complete. In this situation, the Worksite Supervisor should agree with the Area Authority that the Permit be taken to an agreed collection point (e.g. a box at the PDO Camp offices.) The Area Authority will then take the PINK/BLUE copies of completed Permits back to the Issue Point to match them with the Issue Point copies, and sign them off. 6.16.3 Permit Cancellation by Area Authority This section is signed when the Permit Holder has declared the work complete or not complete Where the work is in a Process Facility, the Area Authority should do a worksite inspection and sign to ensure that it has been left in a clean and safe condition. When satisfied that the worksite has been left in a safe condition the Area Authority shall complete and sign the PINK/BLUE and GREEN copies of the Permit. Before signing he should check -

All isolations are removed and the Isolation Certificates are signed off by the Area Authority as confirmation that this has been carried out.

OR -

An Extended Period Isolation (EPI) has been raised where isolations are to remain in place. The Isolation Certificate must be converted to an EPI by completing Box 6 of the Isolation Certificate. If Box 7 of the Permit has been used to authorise these Isolations, a new Isolation Certificate is to be raised by the Area Authority. He is to write all the details of the Isolation on the Certificate, and convert it to an EPI by filling in Box 6 of the Isolation Certificate. The number of the EPI Isolation Certificate is to be written under “cancellation” section of the Permit.

When the “Cancellation” section has been signed no further work may take place under that Permit.

6.17 Permit Archiving The Responsible Supervisor or Permit Co-ordinator must ensure that Worksite copies of all Cancelled Permits and associated documents (Job HSE Plans, Certificates etc.) are kept in an archive file for a period of six months. Other copies of the documents are to be disposed of. There is to be a separate file for each month, with the documents sorted by Cancelled date.

6.18 Permit Processing Procedure The following steps summarise the Permit Processing Procedure together with the use of the Permit Issue Point Facility. 1.

APPLICATION

Permit Applicant

EXAMINE

Worksite to check work and identify hazards (except for Class B Permit at remote sites with no risk from overhead lines, buried services etc)

COMPLETE

Permit Applicant's parts of the Permit.

COMPLETE

Permit Applicant's parts of PTW System Certificates (PEFS, Isolation, etc.) and attach to Permit.

PRODUCE

Job HSE Plan and attach it to Permit.

GIVE

Completed documents to Responsible Supervisor.

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Petroleum Development Oman LLC 2.

PLANNED PERMITS


CHECK

Permit Applicant’s details and dates proposed for work.

ENTER

Permit details into Work Tracking System as a planned Permit.

EXAMINE

Worksite with Permit Applicant, if required (Class A), to confirm protection and precautions are suitable for the conditions.

3.

AUTHORISATION

CHECK


Correct certificates are attached. Permit and Certificate boxes are correctly completed. If another custodian is affected. Job HSE Plan is correct for the work.

IDENTIFY

If an Isolation is required and nominate competent person to identify isolation points (Senior Foreman / Electrical Competent Person).

SET

Authorisation period for Permit.

SIGN

Permit and Certificates to Authorise them.

GIVE

Permit and certificate copies to Permit Applicant (keep white copy in file).

4.

Permit Applicant

BRIEF

The Permit Holder on the work and Hazards.

GIVE

Permit, Certificates and Job HSE Plan to Permit Holder.

5.

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PREPARATION

PREPARATION

Area Authority

OBTAIN

Permit and Certificates from Permit Holder, place in the Authorised section of the Permit Rack.

CHECK

Permit is Valid on Work Tracking System listing or agreed for prevalidation.

WRITE

Any isolation details on the Isolation Certificate and tag labels.

CHECK

For any conflict if the isolation or work is done. Do not allow the isolation or work to proceed if there may be a safety conflict.

DO

The isolation, attaching Pro-locks and labels.

RETURN

To the Permit Issue Point.

SIGN

The Isolation Certificate and tag label stubs.

PLACE

Tag label stubs and Isolation Certificate in the Authorised section of the Permit Rack with the Permit.

MARK

The isolation on the location board with correct colour pegs and labels.


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6.

VALIDATION

Area Authority

CHECK

Any isolations are correctly displayed on location board and signed up on the certificate.

CHECK

For any conflicting work on the Permit Location Board.

CHOOSE

A marker from the board and write its number on the top of the Permit.

INSPECT

The worksite with the Permit Holder (if required) taking the Permit and Job HSE Plan with you.

PREPARE

Worksite as required by Job HSE Plan.

CHECK

All preparation controls on the Job HSE Plan are in place, initialling each control in the Area Authority section of the Job HSE Plan.

SIGN

The Permit to VALIDATE or PRE-VALIDATE it

OBTAIN

Permit Holders signature to ACCEPT the Permit and Job HSE Plan.

GIVE

The RED/BLUE Permit and YELLOW isolation certificate copies to the Permit Holder to display at the worksite.

RETURN


PLACE

The marker previously chosen on the location board, at the location of the worksite.

PLACE

The GREEN Permit copy in the VALIDATED section of the Permit Rack with GREEN Certificate copies and isolation tag label stubs.

7.

BRIEFING

Permit Holder

CONDUCT

TRIC discussion with the work party on the job, the hazards, the precautions and the actions to take in the event of an emergency. Assign any responsibilities for applying any agreed controls

PLACE

The RED/BLUE Permit copy, Job HSE Plan and YELLOW isolation Certificate copies in the wallet and display it at a prominent position at the worksite.

THE WORK MAY START AFTER THE PERMIT HOLDER HAS FULLY BRIEFED THE WORK PARTY AND DISPLAYED THE PERMIT 8.

Permit Holder

CHECK

The work site has been left clean and safe.

RETURN

The Permit to the Area Authority at the Permit Issue Point.

SIGN

Both copies of the Permit under “Suspension”

9.

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SUSPENSION (activities close to Permit Issue Point)

SUSPENSION (activities at remote site)

Permit Holder

CHECK

The work site has been left clean and safe.

SIGN

Top copy of the Permit under “Suspension”

RETURN

The Permit to previously agreed return point.


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Petroleum Development Oman LLC INFORM

10.

Responsible Supervisor of Permits and pre-validations required for next day (May be done by the Applicant)

SUSPENSION (activities close to Permit Issue Point)

Area Authority

CHECK

Permit Holder has signed Permit under “Suspension” and for work in Process Facilities, has left his worksite clean and safe.

PLACE

Both Permit copies in the SUSPENDED section of the Permit Rack.

REMOVE

The marker from the location board.

NOTE: If the job has not finished, the marker should be put where it can be used for the same Permit again and not used for another Permit. 11.

SUSPENSION (activities at remote site)

Area Authority

REMOVE

Green copy of Permit from Permit Rack, write in under “Suspension” “Remote Site”.

PLACE

Green Permit copy in the SUSPENDED section of the Permit Rack.

REMOVE


COLLECT

Top copy of Permit from agreed collection point (next day).

PLACE

Both Permit copies in the SUSPENDED section of the Permit Rack when next at the Permit Issue Point.

THE WORK HAS NOW STOPPED IF WORK IS COMPLETE, GO TO STEP 14. IF THE WORK IS CONTINUING: PERMIT HOLDER WILL RETURN FOR NEXT WORKING PERIOD. IF PERMIT HOLDER HAS CHANGED, A FULL BRIEFING BY APPLICANT OR PREVIOUS PERMIT HOLDER SHOULD BE GIVEN AND A NEW TRIC TALK CONDUCTED.

12.

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RE-VALIDATION

Area Authority

CHECK

Work Tracking System list to see that the Permit is on today's list of “to be validated” Permits.

CHECK

Any isolations are still correctly displayed on Permit Location Board.

CHECK

For conflicting activities on Permit Location Board.

TAKE

Both copies of the Permit and certificates from the rack.

INSPECT

The worksite with the Permit Holder, if required.

CHECK

Requirements of Job HSE Plan are being met.

SIGN

Both copies of the Permit under “Validation” to RE-VALIDATE or, PREVALIDATE it

OBTAIN

Permit Holder's signature under “Acceptance” to ACCEPT the Permit.

GIVE

RED/BLUE Permit copy to the Permit Holder to display at the worksite with the job HSE plan (after checking it is still valid) with the YELLOW Isolation Certificate copy. PR-1172 – Permit to Work System

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RETURN


CHOOSE

The marker from the board that has the same number as the number on the top of the Permit.

PLACE

The marker at the location of the worksite, on the Permit location board.

PLACE

GREEN Permit copy in the VALIDATED section of the Permit Rack with GREEN certificate copies and isolation tag label stubs.

13.

BRIEFING

Permit Holder

CONDUCT

TRIC discussion with the work party on the job, the hazards, the precautions and the actions to take in the event of an emergency. Assign any responsibilities for applying any agreed controls

PLACE

The worksite copy of the Permit, Job HSE Plan and Certificate copies in the wallet and display it at a clear position at the worksite.

WHEN THE JOB IS COMPLETED 14.

CANCELLATION

Permit Holder and Area Authority

Permit Holder CHECK

That the worksite has been left clean and safe.

RETURN

The Permit to the Area Authority at the Issue Point

SIGN

Both copies of the Permit under “Cancellation”

Area Authority

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CHECK

Permit Holder has signed the correct Permit Box and left his worksite clean and safe.

PLACE

Permit copies in the SUSPENDED section of the Permit Rack

REMOVE


CHECK

That it is safe to de-isolate, if applicable, and that this will not conflict with other isolations.

OBTAIN

Authorisation to de-isolate, if applicable.

REMOVE

Small third part of tag from tag label stubs.

DO THE

De-isolation, checking tag labels against third part of tags, returning Prolocks, labels and cable ties and checking the worksite is left clean and safe.

CHECK

Tag labels match the tag stubs in the rack.

SIGN

Isolation Certificate for de-isolation complete.

REMOVE

Isolation pegs and labels from location board.

SIGN

Permit under “Cancellation”

RETURN

Permit to the Responsible Supervisor for Archive.


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15.

ARCHIVE


Permit Coordinator/Responsible Coordinator/Res ponsible Supervisor

CHECK

The status as Cancelled in the Work Tracking System. The system will automatically Archive all Cancelled Permits when the Archive icon is selected.

RETAIN

The worksite copies of the Permit and Certificates and the Job HSE Plan in a safe place for 6 months.

6.19 Permit Validation Validation Exceptions For restricted work categories in Seismic, Well Engineering in remote areas, and Electrical works in remote locations (such as the passage of seismic crews under overhead lines), the permit validation from the Area Authority is able to be faxed provided the Permit Applicant and Area Authority agree that it is appropriate to do so.

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7


Control of Isolations

7.1

Isolation Requirements The following requirements apply to all isolations.

7.1.1

Competency The Responsible Supervisor must ensure that the person nominated to do an Isolation/De-Isolation Isolation/De-Isolation is competent for the task.

7.1.2

Security Each isolation is to be secured in the required position so that the accidental release of the energy source (or obstruction of draining/venting) is prevented.

7.1.3

Labelling The isolation is to be labelled with a high visibility “Isolation Label” so that anyone can immediately see why an isolation is in place, and should not be tampered with.

7.1.4

Recording Process isolations are to be recorded on the Mechanical Isolation Certificate, together with marked-up PEFS or line diagrams. The only exception is Unrecorded Isolations, as described in 7.6.

7.1.5

Visibility and Co-ordination The Area Authority must record all isolated equipment on the Permit Location Boards (See Section 8). This is done to help the Responsible Responsible Supervisor and and Area Authority to ensure that equipment is only isolated or de-isolated when it is safe to do so.

7.2

Electrical Systems All electrical isolations are to be done in accordance with the Electrical Safety Rules (ESRs) and Electrical Safety Operational Operational Procedures (ESOPs.)

7.3

Mechanical Systems Mechanical Isolations are to be done in accordance with PR-1076 – Isolation of Process Equipment .

7.4

Approval for Isolation All isolations, except Unrecorded Isolations, must be fully described on an Isolation Certificate, and must be accompanied by a marked up PEF showing the extent of the isolation and the the isolation points. points. All documented documented mechanical Isolations are to be authorised by the Responsible Supervisor, who must define the isolation point and sign Box 4 of the Mechanical Isolation Certificate. Certificate. Electrical Isolations are to be approved approved in accordance with the requirements of Electrical Safety Rules (ESRs) and Electrical Safety Operating Procedures (ESOPs).

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Permits for Spading Spading When it is necessary to fit blanks or spades to isolate equipment, a separate Permit is required to ensure that the isolation of vessel or system is controlled properly before the work on the vessel/system can start.

7.6

Unrecorded Isolations It is not necessary to record mechanical isolations on the Isolation Certificate if BOTH of the following conditions are met: a.

The isolation is to be done done by a competent person from Operations Department, nominated by the Responsible Supervisor, for the purpose of calibration or minor repair/replacement repair/replacement work that he will do himself, and

b.

The isolation will be removed before the end of the working period.

Minor repair/replacement work is work that can be done without the person doing the work leaving the worksite. Examples are pressure gauge replacement, isolations for faultfinding etc. In this situation, the requireme requirement nt for Isolation is to be included in the Work Description on the Permit.

7.7 7.7.1

Isolation Process Isolation When the isolation has been approved by the Responsible Supervisor, the Permit Holder is to take the Permit and Isolation Certificate, if applicable, to the Area Authority or appropriate Electrical Person, to request isolation. The Area Authority or Electrical Person is then to: •

•

•

•

•

7.7.2

Check the Permit Location Board to ensure that the isolation will not conflict with any other work. When satisfied that it is safe to isolate, carry out the line walk of the system to be isolated, implement the isolation, tag and secure of the valves/switches etc., as required by 7.7.2 and 7.7.3. Prove that the isolation has fully isolated the systems and equipment from pressure/electricity pressure/electricity as required by 7.7.4. If part of the isolation is at a remote location under the control of another Area Authority, fax a copy of the Isolation Certificate to that location and obtain a return fax with a signature that the remote isolation is complete. Sign the Isolation Certificate to confirm that isolation is complete. Then add the marker and details of the isolation to the Permit Location Board.

Tagging of Isolation Points Every valve, spade, switch, breaker etc. used in an isolation (except for isolations that do not require Isolation Certificates), must be marked with the correct type of tag label. Tag labels are used for the isolation of Valves, Spades and Electrical Equipment (The tag label is shown in the PTW Materials Supply Catalogue). The tag label has three parts. parts. The first part (the part of the tag with with the attachment loop) is to be attached to the isolation isolation point. The other two parts parts are to be attached attached to the Permit Issue Point copy of the Permit or Isolation Certificate and kept at the Issue Point until the isolation is removed.

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When the isolation is removed the tags that have been removed must be compared with those at the Permit Issue Point to confirm that all isolations have been removed. The third part of the tag (the smallest part) is provided to assist in the removal of complex isolations. This part is kept attached to the middle part of the tag at the Issue Point until de-isolation is required. The third parts can then be detached and taken to the site by the de-isolator to ensure he only de-isolates the correct valves/switches. The tag label is to identify the number of the Isolation Certificate authorising the isolation. Each valve/switch etc. used as part of more than one Isolation Boundary is to have a tag label for each Isolation Certificate (or Permit.). It is not necessary to fit additional physical securing for each Isolation Certificate (except where this is required for electrical isolations by ESRs / ESOPs.) 7.7.3

Securing of Isolations Mechanical All valves, etc. used as part of an isolation boundary are to be secured in the required position using a high visibility Pro-lock securing device The purpose of securing the isolation is to prevent valves from being moved accidentally, and to show everyone in the area that the valve is being used as part of isolation. Electrical All electrical isolations are to be done in accordance with the ESRs and ESOPs.

7.7.4

Proving of Isolations Whenever isolation is complete, the isolator must prove that the area within the isolation is fully isolated from pressure/electricity. This can normally be done by checks at vent valves or by the checks to prove electrical equipment dead required by ESRs/ESOPs. If it is not possible to check that a pressure system has been de-pressurised without unbolting a flange, the work party must be made aware of the possible pressure hazard. The Job HSE Plan must include clear instructions on controlling the unbolting of the first flange to ensure that any pressure is released before bolts have been removed.

7.8

More than One Permit in an Isolation Boundary If more than one Permit is to be worked on within the same isolation boundary, the isolation for each permit is to be recorded, authorised and labelled separately. This will minimise the risk of an isolation being removed before all work is complete.

7.9

De-Isolation on Completion of Work When work is complete, the Permit Holder is to sign the Isolation Certificate to request de-isolation. If testing is not required, the Permit Holder must also sign the “Cancellation” section of the Permit to confirm that the work is complete. If testing is necessary before the Permit can be signed off, the procedure in 7.10 is to be followed.

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The Area Authority or Appropriate Electrical Person shall: •

•

•

•

•

Check the Permit Location Board to ensure that the removal of the isolation will not affect the isolation boundary for any other work. When satisfied that the work is complete and that it is safe to de-isolate, do the de-isolation. If any of the valves/switches etc. are part of another isolation boundary, the tag for the current de-isolation is to be removed, but other tags are to be left in place. The securing device must not be removed until all isolations on the valve/switch have been removed. When the isolation has been removed, compare the tags from the valves/switches with those attached to the Permit/Isolation Certificate to ensure the De-Isolation is complete. Then remove the marker and description of the isolation from the Permit Location Board. If part of the de-isolation is at a remote location under the control of another Area Authority, fax a copy of the Isolation Certificate to that location and obtain a return fax with a signature that the remote de-isolation is complete. Sign the Permit (Box 7) or Isolation Certificate to confirm that the de-isolation is complete.

7.10 De-Isolation for Testing If testing is required to confirm that the work is complete, de-isolation is allowed before the Permit is signed in Box 11. In this case, the work description on the Permit must include a test, and the Permit must be suspended before testing starts. In addition the sheet on the reverse of the Mechanical Isolation Certificate, should be completed each time an isolation or de-isolation for ‘Test’ is ‘put on’ or ‘taken off’ When the test is to start, the Area Authority is to de-isolate, using the procedure in 7.9, except that he is not to sign the Permit/Isolation Certificate until the test is complete and the equipment is finally de-isolated. If a test shows that more work is needed, and the equipment is to be re-isolated, the Permit is to be Re-Validated for the work to be done. CAUTION: This process is not to be used for Hydrostatic or Pneumatic Testing .

7.11 Transfer of Isolations between Permits If a Permit reaches the end of its Validity Period and work is to continue under a new Permit, the Isolations can be transferred between the two Permits. The “Cancellation” section of the old Permit is to be signed by the Area Authority to show that work is not complete. If the isolation was authorised on a Mechanical Isolation Certificate or Electrical Immobilisation Certificate, the number of the new Permit is to be written in the “Work continuing on Permit No.” Box” on the Certificate. This transfer can only be done 3 times. The Isolation Certificate number is to be written in the “Cancellation” section of the old Permit. The Isolation Certificate is then attached to the new Permit.

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7.12 Extended Period Isolations (EPIs) 7.12.1 Use of EPIs EPIs are isolations which must remain although no work is being done within their boundary. They may be required for two main reasons: a.

Where work has started but will be suspended until the Validity Period of the Permit has passed. For example, when awaiting spares for a repair.

b.

Where equipment becomes redundant and is to be permanently isolated.

7.12.2 Authorisation of EPIs The procedure for authorising and documenting EPIs is as follows:

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1.

Any Permits for work related to the isolation are to be cancelled by the Area Authority. The Area Authority is to sign the “Cancellation” section of the Permit if the work is not complete, or is complete, writing in the Isolation Certificate number in the space after “Isolation retained under Cert. No.”

2.

Where no work is required, but equipment is to be isolated for an extended period, an Isolation Certificate is to be raised to document the isolation

3.

The Area Authority is to indicate in the EPI section of the Isolation Certificate the reason for the isolation and the number of any Permit being signed off.

4.

Both copies of the Isolation Certificate and the Isolation Tag Label halves are to be kept in the EPI section of the Permit Rack.

5.

As an added security measure, an alternative way of tracking EPI’s is to keep an up to date register in the Permit Rack of all EPI’s, with the actual permit copies in a folder that is referred to from the register.


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8


Permit Issue Points

8.1

Location and Use of Permit Issue Points Permit Issue Point display equipment is to be provided at each location from which an Area Authority issues Permits. This equipment consists of a Permit Location and Isolation Board and a Permit Rack. The Area Authority is responsible for ensuring that the Permit and Isolation Displays are kept up to date to show the current work in the Area. The Permit Issue Point is to be operated in accordance with the Permit Processing Procedure, which is available at each Issue Point, and is included in 6.18 of this manual.

8.2

Purpose of Permit Issue Point Displays The information available on the displays at the Permit Issue Points shows: •

•

Current maintenance and engineering work in the area, so that conflict between activities can be avoided. Equipment which is isolated, and not available for operational use.

Isolation boundaries around equipment which is being worked on, which must be kept secure to avoid damage to equipment and injury to personnel.

8.3

Permit and Isolation Display The Display is made up of two main elements:

8.3.1

•

The Permit Rack.

•

The Permit Location Board and Isolation Display.

The Permit Rack This is a rack into which Permits and Isolation Certificates can be placed. It is divided into vertical sections to separate Permits for different areas. These vertical sections are divided horizontally to separate Permits at each different status, as follows:

8.3.2

a)

Planned:

Permits which have been Authorised, but have not yet been Validated for work to start.

b)

Validated:

All Permits for which work is actually in progress or prevalidated.

c)

Suspended:

Permits for which work has started but is not currently in progress and has yet to be finished.

d)

Extended Period Permit has been Cancelled, but the Isolation is retained for a justified reason Isolations:

Permit Location Board and Isolation Display This is a large plan of a station showing all possible locations for work, together with outlines of hazardous areas and major items of equipment. It also has boxes to indicate work in areas outside the station and on wells connected to the station. Wherever possible, the Board should be attached to the wall of the Issue Point so that the orientation of the Board and the plant are the same.

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Permit Work and Isolations are marked up on this Board as follows: Permit Work The locations of the worksites are shown with coloured magnetic markers indicating the Class of the Permit. RED - Class A Permits BLUE - Class B Permits Isolations When equipment is isolated, a red coloured peg is to be inserted in the drawing of that equipment on the Permit Location Board. A label hung from the peg will show the Permit/Isolation certificate number. Where there is more than one isolation on equipment, additional labels will be added. For well isolations, a red peg in the well box with the well number indicated will show which wells are isolated. If isolation becomes an Extended Period Isolation, the red peg is to be replaced by a green one. Markers are also provided to show where Fire and Gas Detection Systems are isolated / inhibited for maintenance work, and where there are Radiography and Pressure Testing activities. The markers are shown in the 'PTW Materials Supply Catalogue'.

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9

Use of the Work Tracking System The Work Tracking System is provided to track Authorised Permits to Work, and performs an essential role in assisting the Responsible Supervisor in the co-ordination of work his Area. It is not used on Drilling Locations.

9.1

Objectives of the Work Tracking System The PTW Tracking System has the following objectives: •

To provide an integrated daily schedule for all activities in an Area.

•

To provide a planned Permit listing to assist in planning worksite examinations.

•

To provide an up to date record of all Authorised Permits in an area.

•

•

9.2

To allow the Responsible Supervisor to provide a listing of all Permits that may be validated by individual Area Authorities on a particular day. To assist in identifying any possible conflicts between activities.

Operation of the PTW Tracking System The Work Tracking System is to be operated in all Responsible Supervisors' areas. The system is to be used as an element in the control and coordination of work, as follows: •

•

•

•

•

•

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The system is to be used by the Responsible Supervisor to produce a daily plan for each Area Authority All Permits are to be entered into the system the day prior to when the Applicant wishes to carryout the activity. Each afternoon the Responsible Supervisor will receive from Permit Applicants lists of the Permits required to be worked on the next day. He is to examine these lists, to ensure that no activities will not conflict, and to ensure that the numbers of Permits will be within the limits stated in 4.3. The Work Tracking listing is to then be updated to indicate all existing and new Permits to be validated for the next day. Reports of Permits to be validated are sent electronically to Area Authorities by the PTW Tracking system, at the start of each day. When a Permit is brought to an Area Authority for Validation, the Area Authority is to check the PTW Tracking Listing for the Area to ensure that the Permit has been included on the list for that day. If it is not on the list, he should reject the activity.


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10


Permit to Work System Certificates

10.1 Certificates Provided Certificates are used in the Permit to Work System to provide additional authorisation and control for a number of activities.

A PERMIT TO WORK SYSTEM CERTIFICATE IS NOT A “PERMIT TO WORK” AND MUST NOT BE USED TO AUTHORISE WORK UNLESS IT IS ATTACHED TO AN APPROPRIATE PERMIT TO WORK. The Certificates used in the system are: •

Mechanical Isolation

•

Mechanical Isolation Continuation

•

Confined Space Entry

•

Excavation (see PR-1002 - Engineering & Operations Excavation Certificate Procedure )

•

Additional Gas Test Record

•

Radiography

•

Temporary Override of Safeguarding Systems

•

•

•

Clearance for Work under Overhead Lines - See Electrical Safety Operations Procedures Electrical Safety Documents: -

Electrical Isolation

-

Electrical Immobilisation/Mobilisation

-

Electrical PTW - Safety Rules

-

Limitation of Access - LOA

-

Sanction for Test - SFT

Colours of Certificate copies if not a standalone form e.g. Temporary Override of Safeguarding Systems

•

Worksite - Yellow

•

Permit Issue Point - Green

10.2 Use of Certificates 10.2.1 Mechanical Isolation Certificate This Certificate is shown in Appendix 3 the use of the Certificate in the isolation process is covered in 6.5.1. A brief description of its use is given below: Application - Box 1 Box 1 is to be completed by the Permit Applicant, giving the details of the job and the covering Permit number. The Box marked ‘Work Continuing on Permit No’ is to be used when a Permit passes its expiry date, but work will continue under a new Permit allowing the Isolation Certificate to be transferred to a new Permit. Page 68


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Reason for Isolation - Box 2 The Permit Applicant is to write here the reason why the isolation is required. Details of Isolation - Box 3 The Responsible Supervisor is to write in Box 3 the details of all isolation points, indicating whether valves are to be open or closed, and places where spading or disconnection is required. Isolation - Box 4 The Responsible Supervisor shall sign Box 4 to authorise the Isolation. Authority shall sign Box 4 when the Isolation is complete.

The Area

De-Isolation - Box 5 The Permit Holder shall sign Box 5 to request de-isolation. The Area Authority shall then sign to authorise de-isolation. Once the de-isolation is complete, the person who did the de-isolation shall sign this box to show that de-isolation is complete. He should also complete the “De-Isolated position” box to show the “as left” status of the valves. De-Isolation For Test – Reverse of Permit On the reverse of the Mechanical Isolation Certificate is a sheet for use when Deisolation/Isolation For Test is required (see 7.10) Extended Period Isolation (EPI) - Box 6 This box is to be used when isolation is still required after its associated Permit is cancelled. The “EPI ON” Section is signed to authorise the EPI when a Permit is to be cancelled, with the Isolation remaining. The “EPI OFF” Section is to be used when work can continue, and the Isolation Certificate is to be attached to a new Permit. 10.2.2 Confined Space Entry Certificate The Confined Space Entry Certificate is shown in Appendix 4. A Confined Space Entry Certificate is required whenever entry is made into vessels or other confined spaces where there may be: •

Toxic or flammable gases or vapours, or

•

Oxygen content of the atmosphere < 20% by volume.

A Confined Space Entry Certificate is valid for no more than 12 hours. If the work takes longer than this, a new certificate is to be raised each 12 hours. The first certificate to be authorised by the Responsible Supervisor, but later ones can be authorised by the Area Authority. If a Confined Space Entry Certificate is required for a long protracted activity, e.g. major tank repair. The CSE can be issued for the duration of the task with the following proviso’s: •

A full physical isolation is in place before any entry takes place

•

The isolation remains untouched until the whole activity is complete

•

All the requirements of Box 2 of the CSE certificate remain in place.

•

•

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A gas test of the tank atmosphere is carried out at the start of each shift before any entry takes place; full gas testing remains ongoing during the activity. The results are recorded on a gas test record, or an additional gas test record. There are no changes to stand by personnel PR-1172 – Permit to Work System

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Petroleum Development Oman LLC If there are any changes to the above, a new CSE certificate is required.

A brief description of the use of the Confined Space Entry Certificate is given below: Application - Box 1 Box 1 is to be completed by the Permit Applicant, giving the details of the job and the covering Permit number. Safety Precautions Required - Box 2 This is a list of items to be checked by the Responsible Supervisor / Area Authority before anyone enters the Confined Space. The Responsible Supervisor / Area Authority sign this box to indicate that all necessary precautions are in place. Gas Testing - Box 3 Immediately before first entry to the Confined Space each day the Area Authority is to test the space for Toxic and Explosive Gases/Vapours and for Oxygen Concentration. The results of these tests are to be written in Box 3 of the Certificate. Further testing during the day can be done by any Authorised Gas Tester. Authorisation - Box 4 Once he is satisfied that the Confined Space is safe to enter, the Responsible Supervisor/Area Authority is to complete Box 4 to define the period for which the Certificate is valid, and then authorise the entry to proceed. Copies of forms in the pad are not in the same sequence as other Certificates. The top copy is Green and the second copy (worksite) is Yellow. The back of the Yellow copy has boxes to record additional gas tests, and to record the entry and exit of personnel to and from the confined space. 10.2.2 Additional Gas Test Record The Additional Gas Test Record is shown in Appendix 4 (reverse of Confined Space Entry). This Certificate is to be used as a continuation sheet when Box 9 of a Permit, or the Gas Test Record on a Confined Space Entry Certificate, is full. 10.2.3 Radiography Certificate The Radiography Certificate is shown in Appendix 7. A Radiography Certificate is required before an ionising radiation source can be used for Radiography. •

•

Part A is to be completed by the Permit Applicant. Part B is to be completed by the Site in Charge (Radiation Protection Supervisor)

Operational, maintenance and emergency procedures for handling, storing and transporting radioactive sources or generators shall meet HSE Specification SP-1237 – Ionising Radiation . NDT Contractors shall have their own approved Radiation Safety Management System signed off by their Radiation Protection Advisor.

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11


Hazard Management

11.1 Objectives The objectives of the Hazard Management System are to identify all the hazards involved with a job and then to indicate controls that must be put in place to enable the work to be done safely. Hazard assessment is accomplished using the Job HSE Plan.

11.2 Job HSE Plan The Job HSE Plan System shall be accessed electronically from the PDO Web.

rd

The following Link will bring up the Web Page above Job HSE Plan . For 3 Party Contractors who do not have access to the PDO Intranet the page can be accessed rd from 3 Party Job HSE Plan System . Clicking on Job HSE Plan System shall direct the user to the electronic system.

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It is recommended that the Job HSE Plan be produced electronically using the above application. The process for producing the plan is as shown in Figure 11.1.

Figure 11.1 – Job HSE Plan Process A Job HSE Plan shall be developed and printed for each activity being undertaken. The plan shall be printed and signed by the required signatories and attached to the Permit. Refer to Figure 11.2 for an Example Job HSE Plan developed from the electronic system. If preferred, but not recommended the Job HSE Plan can be printed and completed manually.

The same applies as to the electronic version; a separate plan is developed for each activity that is being undertaken.

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Figure 11.2 – Job HSE Plan (Example)

IT IS ESSENTIAL THAT ALL JOB HSE PLANS ARE PROPERLY REVIEWED BEFORE ANY WORK TAKES PLACE BY THE RESPONSIBLE SUPERVISOR, AREA AUTHORITY AND WORKSITE SUPERVISOR, TO ENSURE THAT THEY IDENTIFY ALL HAZARDS AND CONTAIN ALL NECESSARY CONTROLS.

11.3 T.R.I.C – Toolbox Talk Risk Identification Card In addition to the Job HSE Plan, the PTW Holder shall conduct a TRIC discussion. The TRIC is not a repeat of the Job HSE Plan (which focuses on the hazards associated with the activity.) The TRIC is a location specific Risk Assessment, which will focus on the hazards at the worksite at the time the work is to be carried out. The TRIC shall be carried out at the Worksite immediately prior to the activity start.

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Figure 11.3 – TRIC

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12

Training and Licensing Of Permit to Work Signatories

12.1 Training and Licensing of Personnel with PTW Roles Before being trained in Permit to Work, Responsible Supervisors, Area Authorities, Permit Applicants, Permit Holders and Gas Testers should be given training in operational safety. This training should include the mandatory courses stated in PDO document SP-1157 - HSE Specification - HSE Training and the associated prerequisites together with those required by Contract Documents. For further details of licensing requirements and process, see GU-624 - Permit to Work Licensing Guidelines PTW System training and licensing requirements are shown in Table 12.1 below. Licensing after PTW training is important to ensure that Permit Signatories understand how to apply the PTW system in their Area. Table 12.1: PTW Training and Licensing Requirements

TRAINING

LICENSING

Gas Testers Course

Permit Signatories Course








Area Authority







Permit Applicant







POST

Permit Holders Course

Licensed

(Optional) 

Permit Holder





(Optional)

12.2 Gas Testers Personnel who have completed Gas Tester Training (with valid Gas Tester card and record of training in the HSE Training Passport) and appropriate PTW course are Authorised Gas Testers.

12.3 Training Course Assessment Tests PTW training courses include formal assessment tests, to ensure that attendees have achieved the required level of knowledge. Personnel must achieve a set mark in these tests to pass the course.

12.4 Training Records Personnel who pass a Permit to Work Training Course will have the course details recorded in their HSE Training Passport. The Training Custodian will maintain a record of all personnel trained.

12.5 Licensing Policy After passing an appropriate PTW Course, everyone who authorises or supervises work covered by Permit must be licensed by his line management. Licensing is to Page 75


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ensure that everyone with a safety-critical role in the PTW System is competent for that role. The Licensing process is to assess a candidate’s knowledge of Hazards and Procedures in his particular working environment. It is not intended to cover either Permit to Work System knowledge (which is assessed in the PTW Training Course) or Job Competence Assessment.

Job Skill Competence

Work in Area Competence

Before Licensing

Licensing Process

PTW Knowledge

PTW Application Knowledge

Quality, well managed Permits

Figure 12.1 - Knowledge and Competence for Permit Activities Figure 12.1 shows how a range of skills and knowledge need to be brought together to ensure that Permits are well managed. Referring to Figure 12.1: Job Skill Competence This is the technical skill of the person doing the work. Ensuring that people have the technical skills to do their work is the responsibility of PDO and Contractor line management, and is not part of the PTW system. PTW System Knowledge This is an understanding of how the system works. This is assessed in the PTW training courses. Work in Area Competence This is an ability to understand, manage and react to the hazards present in the area where the work is to be done. For example, welding work in a station will have both the 'occupational hazards' and the additional hazard of becoming an ignition source to other flammable materials in the area. A person involved in the Permit process must recognise and understand the additional risks. A person’s capability to deal with this additional risk is assessed during the licensing process. PTW Application Knowledge This is the ability to apply what was learnt on the PTW course to real worksite activities. This is the second issue tested in the Licensing process. The training course intends to teach the mechanics of the system i.e. how the system itself works. What is required during licensing is a demonstration that people understand why a Permit is required, and how they would apply the requirements of the PTW system to the work.

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12.6 Licensing of Permit to Work Signatories 12.6.1 Requirement for Licensing Senior Line personnel are required to formally license people in the PTW roles of Responsible Supervisor, Area Authority, Permit Applicant and Permit Holder. It is recommended that Assessment Teams of a minimum of 2 people from relevant departments in PDO are formed to assist the licensor in his role. Where job competence assessment schemes are already in place and documented results of appropriate competence assessments may be used without separate individual assessments for licensing purposes. (See 12.7) Before a licence is issued to an individual: •

He must have satisfactorily completed the appropriate PTW Course.

He must have satisfied a licensor that he has the correct level of knowledge of the Area and PTW System Application. This is done by questioning, as described in 12.6.3 (or by previous competence assessment, as noted above.) Questioning on Work in Area knowledge may take place before an individual attends a PTW Course, to ensure that he will be suitable for the intended role. PTW System Application knowledge would then be assessed after the course. •

Licensing should be done by the personnel indicated in Table 12.2. Records of Licensing are to be held by the Departments carrying out the Licensing and the Area HSE Advisor. To assist conformity, it is suggested that the Licence Record Form shown in Figure 12.2 should be used. When an individual transfers to another PDO location, it is the responsibility of the new locations senior line personnel to license the individual for that area. As an example, a Permit Holder who has successfully been through the licensing process in Fahud and applies for a license in Yibal, only requires the endorsement of the Production Coordinator in Yibal and a new license card issued. It does not required the full license panel to convene. A similar situation exists where a person may have been licensed by the Engineering Team, and have been operating as a Permit Applicant or Holder. This is not now a recognised licensing route. In this case, it only requires the discussion and endorsement of the Production Coordinator for a replacement license to be issued. If an individual has a “roving” role (e.g. Metering Specialist, Well Services, NDT Specialist, Geomatics survey) this should be identified on the license f or the individual. If an individual changes employer, this should not affect his license qualifications, or require any further licensing. The individual should be able to offer his existing license for immediate replacement. There may be times when a project commissioning team or Well Services Team requires regular access to an existing Operations Asset. As an example, Harweel project may need access to Marmul wells for commissioning purposes, or Well Services may need to remove a flowline isolation for well clean up etc.. In this case, the Area Co-ordinator may issue a Commissioning person with a letter of temporary appointment with strict limitations, to act as an Area Authority for these agreed Assets only. The Area Co-ordinator would do this, having satisfied himself that the nominated persons are knowledgeable of the assets in question, and competent to sign appropriate permitry. It is also the responsibility of the area licensing panel to maintain a current register of all personnel licensed for that area.

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Petroleum Development Oman LLC 12.6.2 Assessment Teams

It is strongly suggested that the Assessment Team involve at least 2 PDO personnel. – one of which should be an HSE Advisor. The PDO personnel involved are to be familiar with: •

the work area of the candidate

•

the particular hazards associated with the discipline

•

PDO Operating and Emergency procedures applicable to the work area

The composition of the Assessment Teams is at the discretion of the Licensor. The Licensor retains overall responsibility for the issuing of Licenses and maintaining License Records. At least one of the Assessment Team members is to be the same level or higher than the candidate. As a minimum, one Assessment Team member is to have completed the PTW Signatories Course in the last 3 years, and the remainder should have completed PTW signatories within the last five years. The licensing panel should be chaired by the Production Co-ordinator. Table 12.2 suggests the personnel recommended to be involved in the Assessment Teams for PTW Licensing. Table 12.2 - Licensing Assessment Teams Assessment Role

Location

Production Representative

Maintenance Representative

Candidate Representative

Contract Holder Representative / HSE Advisor

PTW Candidate Responsible Supervisor Area Authority PDO Permit Applicant PDO Permit Holder

INTERIOR

Production Coordinator & PTW Coordinator

Maintenance Coordinator

Candidate Supervisor

Head of Construction

MAF / TERMINAL

Senior Terminal Operations Supervisor* + Terminal Production Supervisor / Marine Supervisor

Head Maintenance and Facilities Upgrade

Candidate Supervisor

Infrastructure HSE Advisor

Contractor Permit Holder Contractor Permit Applicant Responsible Supervisor Area Authority PDO Permit Applicant PDO Permit Holder Contractor Permit Holder Contractor Permit Applicant

Responsible Supervisor & Area Authority (Drilling)

PDO Drilling Supervisor*

Head Development / Exploration Drilling

Well Engineering HSE Team Leader

* To establish licensing panel – issue, sign and maintain the cards records Page 78 Printed 13/04/10 PR-1172 – Permit to Work System The controlled version of this CMF Document r esides online in Livelink®. Printed copies are UNCONTROLLED.



12.6.3 Questioning of Candidates for Licensing Personnel to be licensed are to be questioned to ensure that they are familiar with the hazards that may be encountered in their work areas, and the precautions necessary to control them. Questioning should preferably be verbal, so that the licensor can have a better understanding of an individual’s capabilities. It should include questioning on: Work in Area Competence To check their ability to understand, manage and react to the hazards present in the area where the work is to be done. PTW Application Knowledge To check their ability to understand why a Permit is required, and how they would apply the requirements of the PTW system to their work. The Permit to Work Courses have assessed knowledge of the way that the PTW process works, and this area does not need to be repeated during this stage. The candidate should be encouraged to use the PTW manual during the interview to demonstrate their navigation skills. Questioning should cover the following topics: Responsible Supervisors and Area Authorities •

•

•

•

•

The plant and equipment in their area, and the processes taking place in that area. Co-ordination of work, including interactions between different Permit activities, and between Permit and Operational activities. Potential hazards that may arise and the controls that they require. Relevant Operating Procedures, particularly those covering preparations for maintenance. Emergency procedures.

Permit Applicants and Permit Holders •

•

Knowledge of the hazards associated with the technical content of the work that they will be supervising. Knowledge of the potential hazards that may arise in the locations where they will be working.

•

Emergency procedures.

•

Ability to communicate with their workforce in order to deliver Toolbox Talks.

12.7 Persons Assessed under an Approved Competence Scheme Where persons have already been assessed for their role by an approved Competence Assurance scheme they may be licensed without formally repeating the assessment testing. In order to maintain standards and auditability the following minimum requirements apply to these persons: •

•

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The scheme under which they have been assessed must be documented and approved by the Area Team Leader. Written records of the assessment tests and the test results must exist.


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The assessment testing methods must demonstrate that the person has acceptable knowledge of the key areas of responsibility defined in the PTW manual. License cards may then be issued to personnel who have passed the appropriate Permit to Work Training Course and who can demonstrate adequate knowledge of the Area and PTW System Application. The person issuing the license should show on the back of the license card the limitations within which the licensee may work: •

•

•

Responsible Supervisors and Area Authorities are licensed for an Operational Area. Permit Applicants and Permit Holders will normally be licensed for a type of work. However, in areas with a specific hazard, Asset Managers may require specific licences to cover their area.

12.8 License Cards There are License Cards available for each PTW Role. For each person who has completed PTW Training successfully the Licensor will have the following available: •

•

The candidate will have a stamped and signed HSE Training passport showing which PTW course has been completed and the Licence Application / Notification from Training Administration of the successful completion of the PTW course, together with two passport photographs of each individual. Blank License cards will be available from stock, or via the electronic licensing database if available.

Following completion and signing, the license cards are to be laminated in a plastic cover.

12.9 Re-Licensing Personnel must attend the appropriate Permit to Work Training Course and be relicensed by the Licensing panel if: •

•

A person who has attended the Permit Signatory Course is required to become an Area Authority, Permit Applicant or Responsible Supervisor. A person’s Line Manager believes that the individual would benefit from retraining in order to become re-familiarised with the system.

There is no requirement for a person to be re-assessed following attendance at a refresher course providing his work area and/or discipline have not changed, however, this is at the discretion of the Area licensing team, A new card should be issued showing the revised expiry date following course attendance.

12.10 Refresher Training SP-1157- HSE Specification for HSE Training specifies that refresher training and assessment needs to take place at least every:

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•

3 years for Permit to Work Licence Holders.

•

3 years for Permit to Work Licence Signatories

•

3 years for Permit to Work Licence Auditors.


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PETROLEUM DEVELOPMENT OMAN PERMIT TO WORK LICENCE APPLICATION / NOTIFICATION FAMILY OR TRIBAL NAME 1ST GIVEN NAME 2ND GIVEN NAME EMPLOYING COMPANY COMPANY NUMBER JOB TITLE

2 PHOTOS (1 X LICENCE 1 X FILE)

TRAINING PASSPORT NUMBER TYPE OF PERMIT TO WORK COURSE ATTENDED DATE PERMIT TO WORK COURSE ATTENDED PTW INSTRUCTOR NAME SIG. AREA REQUIRED

MARMUL FAHUD NIMR LEKHWAIR BAHJA YIBAL MAF QARN ALAM HARWEEL

*SIGNATORY or HOLDER DATE

TYPE OF WORK REQUIRED* (APPLICANT OR HOLDER ONLY)

MECHANICAL ELECTRICAL INSTRUMENT CIVIL CONSTN. PIPELINE OPS. OTHER

HAS THE APPLICANT PREVIOUSLY BEEN FORMALLY LICENCED FOR A PERMIT TO WORK SYSTEM. IF YES GIVE DETAILS

FOR LICENCING PANEL USE ONLY LICENCED AS*

TYPE OF WORK*

HOLDER APPLICANT AREA AUTHORITY RESPONSIBLE SUPVR MECHANICAL ELECTRICAL INSTRUMENT CIVIL CONTN. WELL SERVICING PIPELINE OPS. OTHER

FOR AREA*

MARMUL NIMR BAHJA MAF HARWEEL

FAHUD LEKHWAIR YIBAL QARN ALAM

LICENSED BY SIGNATURE PDO REF. IND.

LICENCE NUMBER

DATE OF ISSUE

COMPLETED FORM WITH ONE PHOTO WITH THE AREA HSE ADVISOR FOR FILE

* DELETE ITEMS NOT APPLICABLE THE REVERSE OF THIS FORM SHOULD BE USED FOR ANY NOTES BY THE LICENCING PANEL

Figure 12.2 - Licence Application / Notification

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13

Permit To Work Monitoring, Auditing And System Review

13.1 Definitions Monitoring of the system consists of regular checks by supervisors responsible for managing the operation of the Permit to Work System. Auditing is a thorough examination of the way the system is operating. The PTW Audits are done to standard checklists, and must concentrate on examining evidence relating to the items on the checklists. System Review is an annual examination of the complete PTW System. It looks at Audit findings, proposals for change and other relevant information, to assess what changes are required to the system to optimise its effectiveness.

13.2 Objectives Monitoring and Auditing of the PTW system is intended to: •

Check whether people are complying with the PTW system;

•

Check whether the PTW system is meeting its objectives;

•

Identify necessary improvements to the PTW System.

An annual System Review is necessary to: •

•

Review proposals for change to the PTW system and decide whether these changes should be made. Review Audit findings and incident reports to decide whether they indicate a need for improvements to the system.

13.3 Monitoring of the Permit to Work System When visiting Permit Issue Points and Worksites as part of their normal duties, Managers and Supervisors should do spot checks of Permits.. Using Checklist 2 (Appendix 12) they should check the following: •

•

•

•

Are the Permit, Job HSE Plan and any PTW Certificates displayed at the worksite Are these documents correct for the work and properly authorised? Are the precautions required by the Permit and Job HSE Plan adequate and being complied with? Do the members of the work party understand the work, and the requirements of the Permit

13.4 Auditing of the Permit to Work System 13.4.1 Responsibilities of Personnel Involved in the Audit Process The key roles in the Audit process are the Auditor and the Audit Authority. The Auditor is the person responsible for leading the Audit. The Audit Authority is the person to whom the Audit report is presented, and who is responsible for corrective actions. The role of the Audit Authority is vital in ensuring that corrective actions are allocated to individuals and completed. Page 82


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Their responsibilities are: The Auditor Auditors are to have satisfactorily completed the Permit to Work Auditing Course during the previous 4 years to the audit, and have been involved in using or maintaining the Permit to Work System in the last 12 months. Auditors are to prepare the Audit, conduct the Audit effectively and prepare an Audit Report, which sets out the findings in a concise and readable manner. Auditors are not responsible for rectifying any problems found. This is the responsibility of the Audit Authority and the Department(s) being audited. Auditors are responsible for: •

•

Defining the Audit objectives and communicating them to people involved. Carrying out the Audit at the stated time, making sufficient time to do the Audit properly, and Auditing in an alert and courteous manner.

•

Concentrating on the objectives of the Audit, and not being side-tracked.

•

Carrying out all the checks required by Audit documentation.

•

Preparing a written Audit Report.

•

Submitting the Report to the Audit Authority at the correct time.

The Audit Authority The Audit Authority is to ensure that Audits take place in accordance with the Audit Programme, and is to make time to analyse and action the results. The Audit Authority is responsible for: •

Ensuring there is a published Audit Programme.

•

Ensuring there are sufficient trained Auditors for the area.

•

Ensuring Audit Reports are analysed and actioned.

•

Ensuring actions are properly tracked and reviewed.

13.4.2 Types of Audit Auditing of the PTW System is done at two separate levels. Table 13.1 defines the Audit Authority, Auditor and Audit Programming and Training Requirements for Level 1 and 2 Audits. Level 2 – 3-6 Monthly Audits These audits look at the operation of the complete PTW system in an Area, including the performance of those who operate the system. The audit is likely to last 1-2 days. It may be done by auditor(s) from within the area, or by nominated auditors from other areas. The Audit Authority is to issue a yearly programme stating when Level 2 audits should be done, and who will be the Auditors. Level 2 Audits should be carried out between 2 and 4 times per year in each Area. The Asset Manager for the Area is responsible for defining the audit frequency within these limits, depending on the level of Permit activity in the Area. The Audit is to include: •

•

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Checks on the operation of the PTW System and the performance of the personnel required by Audit Forms A -E. Any other checks on the system considered necessary by the auditor. PR-1172 – Permit to Work System

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Petroleum Development Oman LLC Table 13.1: Audit Structure

TYPE OF AUDIT Level 2 3-6 Monthly

Level 1 3 Yearly

Audit Authority to whom Audit Report is Presented

Area Operations Team Leader

UOP

Boundary within which Audit is Conducted

Area

Company

Lead Auditor

Operations Team Leader or Area Co-ordinator

Qualified Nominated Individual

Auditors

Area Co-ordinator, Engineering Team Leader / Co-ordinator or Safety Advisor. Qualified Contractor representative

Qualified Nominated Individuals

Training of Auditors

Each to have successfully completed the PTW Auditors Course

Publication Programme

Audit Authority to produce annual programme

MSE/53 to schedule audit requirements

Presentation of Findings

Report submitted within 1 week

Report submitted within 2 weeks

Review Actions

Operations Team Leader

UOP/7

Area Co-ordinator

MSE/5

of

of

Audit

Corrective

Archivist

Level 1 - Corporate Audits These audits examine all aspects of the operation of the Permit to Work system. They are carried out to ensure that the Permit to Work is working effectively. The audit is likely to last 7 -10 days, depending on the size and complexity of the operation. It is to be done by the Corporate HSE Department. These Audits are to include: •

•

•

Audits of the system and personnel, using the standard audit forms, to provide an independent view of whether system requirements are being complied with. Checks on whether the nominated Custodians for the various aspects of the system are undertaking their stated responsibilities and whether these arrangements are adequate.

•

An examination of PTW Training.

•

A review of whether the PTW documentation is accurate and adequate.

•

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A check of the frequency, standard and results of Level 2 Audits.

A review of understanding of, and attitude to the system, by personnel operating it.


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•


Examination of arrangements for the appointment of signatories, and whether satisfactory controls are in place.

•

Examination of the arrangements for system review.

•

Any other checks on the system considered necessary by the auditors.

Any of the standard audit forms may be used to assist in the audit. 13.4.3 Audit Organisation Audit Numbering Each Level 2 Audit is to be given a 3-part reference number on the Audit forms, including: •

A site or department identifier.

•

The last two digits of the year in which the Audit is done.

•

A number from 1 upwards each year to identify the individual Audit.

These 3 parts are to be combined into a single identifier e.g. Fahud/98/03. 13.4.4 Conduct of the Audit To provide a proper assessment of the operation of the PTW system, the Audit must be recognised as important by both Auditors and those being audited. Those who are subject to Audit should show active participation by co-operating with the Auditor in giving time to the Audit, when required. They should provide the Auditor with sound and reasoned responses to Audit questions. In order to achieve this, the importance of Auditing is stressed during PTW training courses. This importance should also be emphasised during Safety Meetings, particularly those where corrective actions are reviewed. 13.4.5 Audit Reporting Audit Reports •

Reports on Level 1 audits should be submitted to the Audit Authority.

•

The essential features of audit reports are that they should:

•

Be brief, concentrating on significant finding of the audit.

•

Separate non-compliances from observations.

•

Recommend corrective actions and action parties.

•

•

•

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Be presented to the Audit Authority for approval of the recommended actions and action parties. Be signed by the Audit Authority. actions required.

It then becomes a formal statement of

Be distributed to all action parties and the Area Co-ordinator of the Audited Area.

•

The report should be distributed to:

•

Audit Authority.

•

Area Co-ordinator.

•

Area Safety Supervisor. PR-1172 – Permit to Work System

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•


PTW System Custodian.

Corrective Action In assessing whether an audit finding is a non-compliance, requiring corrective action to be taken, auditors should bear in mind the definition of a non-compliance, which is: “A deviation of unacceptable magnitude from the defined standard which, unless corrected, may lead to a break down of the system.” Where auditors find isolated minor non-compliances, which are not repeated either by the individual involved or in the area audited these should be pointed out to the individuals involved, but they should not constitute non-compliance. Non-compliances should be categorised under headings similar to “Table of Contents” of this procedure, covering topics such as: •

PTW System Operation.

•

PTW System Requirements.

•

PTW System Documentation and Hardware.

•

PTW Training.

•

HSE Awareness.

•

Competency.

•

Motivation.

•

Information and Communication.

•

Management and Supervision.

•

Management of Contractors.

The Audit Authority is to ensure that all corrective actions required by Audit Reports have been properly actioned and are subject to regular monitoring. 13.4.6 Audit Archiving Audits for each Audit Area are to be kept in an archive to ensure that: •

•

A record of corrective actions required is kept. Other Auditors can examine the records and ensure that Audits have been done correctly and that corrective actions have been taken.

Archives are to be managed as follows: •

For each area, a post is to be nominated to maintain the Audit archive.

•

The archive is to contain the Master Copy of all Audits for the Area.

•

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The Audit Report (Audit Form A), together with all supporting Audit forms and documents collected during the Audit are to be archived.

•

The Archive file should include a list of all Audits it contains.

•

The Archive is to be kept in a secure location.

•

Audit reports should be held in the Archive File for 12 months.


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13.5 Review of the Permit to Work System 13.5.1 Frequency and Objectives The PTW System Custodian is to arrange for the system to be reviewed on an annual basis. The objective is to ensure that any changes required to the system, or its operation, are incorporated. 13.5.2 Review Mechanism The PTW System Custodian should conduct the review in conjunction with appropriate personnel from areas operating the PTW System and other involved parties such as the Training Custodian. The review is to deliver recommendations for changes to the system, based on consideration of the following: •

Audit Reports.

•

Incident Reports.

•

Proposals for Change.

•

Changes to appropriate industry guidance documents.

•

Changes to Company Organisation.

Copies of the recommendations from the review should be circulated for agreement prior to being implemented. All resulting changes to the Manual or other documentation are to be done in accordance with appropriate document control procedures. 13.5.3 Interim Amendments Interim Amendments are used to introduce minor changes or clarification to PR-1172 – Permit to Work Procedure between formal Revisions. They are authorised and issued by UOP/7, and should be used until the next formal full Revision is issued. Addendums shall be added as applicable to the CMF Master Document. The addendums will contain the changes and reference to the main body of the master document to which the change refers. Hard copy addendums will then be emailed to a nominated focal point who is tasked with ensuring that the addendums are displayed in prominent positions throughout the area, i.e. Control Room, Production Stations and notice boards.

13.6 Permit to Work System Audit Forms The following audit forms are enclosed:

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•

Audit Form A -Compilation of Findings

•

Audit Form B -Interview Area Co-ordinator

•

Audit Form C -Interview Responsible Supervisor

•

Audit Form D - Interview Area Authority

•

Audit Form E-Interview Permit Applicant

•

Audit Form F - Examine Worksite and Interview Permit Holder.


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Link to PTW System Audit Form A

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Link to PTW System Audit Form B

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Link to PTW System Audit Form C (Part 1)

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Link to PTW System Audit Form C (Part 2)

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Link to PTW System Audit Form D

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Link to PTW System Audit Form E

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Link to PTW System Audit Form F

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14

Change Management

14.1 Proposals for Change to the Permit to Work System If you think that the Permit to Work System can be improved, fill in a copy of this form and send it through your Line Management to the PTW Custodian (UOP/7) Alternatively, you can send your proposal to UOP/7 by e-mail. Table 14.1 Proposals for Change to the Permit to Work System INSTALLATION/AREA:

CHANGE PROPOSED BY:

POSITION:

SIGNED:

DATE:

PROPOSAL FOR CHANGE:

REASON FOR CHANGE:

“COMMENTS/PROPOSAL (LINE DEPARTMENT)

SIGNED:

FOR

ACTION

DATE

ACTION BY UOP/7

SIGNED:

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DATE


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15


Details of PTW System Operation

15.1 Fault Finding 15.1.1 Fault Finding Work Where checking is performed for the purposes of fault finding, so long as no work is involved that falls into an Activity requiring a Permit, the checks can be performed without a Permit as stipulated in the PTW Manual 3.6. However a TRIC must be completed. Examples include such checks as examination of vibration switches which appear not to be functioning by knocking the switch and observing any output. Should the checks indicate that further work is required which does require a Permit, such as opening a live electrical junction box, then this work must be done under a Permit. Electrical Fault Finding Fault finding on live electrical circuits requires a Class B Permit where the work is in a Process Facility (i.e. not on an Asset that is under the Custodianship of the Electrical Persons.) This work must be done in accordance with the ESRs, with a gas test where required by 3.6 of the PTW Manual. Fault Finding - Rules •

•

•

•

The work must not include fault finding activities of a non-routine nature, or any activities that may produce an unsafe situation. This includes all activities listed as requiring a Permit. In particular this means that a Permit will be required if hydrocarbon lines are breached to remove valves, or if live (non-IS) electrical junction boxes in hazardous areas are to be opened. The work is to be supervised by the Area Authority, even where the work is being done by personnel from another department. The Responsible Supervisor must advise the Area Authority of any potential hazard, or effects on other parts of the process, particularly, where valve operations are concerned. Once the fault has been found, a Permit should be raised to put it right, if the type of work requires it.

15.2 Construction Work 15.2.1 Construction Work Close to Existing Facilities Construction work, including the construction of new pipelines, within the Hydrocarbon Area surrounding an existing facility normally requires a Permit. Some major construction programmes within the Hydrocarbon Area around existing facilities may be controlled better by a job-specific HSE plan that addresses all the hazards and their controls than by the PTW System. The Responsible Supervisor may decide that the PTW System need not normally be applied to this type of work, if he has agreed the job-specific HSE Plan. In this case he should use a No Permit Job Form, and review it regularly (see section 3.2.3). NOTE: A TRIC must be completed for each activity. However Permits will be required for:

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•

Any work within a hazardous zone;

•

Work (such as trenching or lifting) which could directly affect the facility; PR-1172 – Permit to Work System

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•


Work requiring a Class A Permit.

Further details of the precautions necessary when working on pipelines are contained in GU-501 Guidelines for Excavating and Working Around Live Pipelines . 15.2.2 Hook up, Un-Hook and Re-Hook of Wells When new wells are hooked up, provided the closing spools are fabricated and welded off the site, then no Permit is required. Laying sleepers, connecting up spools, hydrostatic testing and providing the flowlines require a Class B Permit. Removal of spades at the Xmas tree and manifold for final handover to production, using documented handover procedures also requires a Class B Permit. The disconnection and re-hook up of existing wells requires a Class B Permit, unless it is necessary to cut flowlines. Cutting of flowlines requires a Class A Permit. Engineering construction work for hooking up new wells may be multi-disciplined involving electrical, instrument, civil and mechanical works. Where a single Permit Holder is licensed for all disciplines and the Job HSE Plan(s) adequately cover each discipline's work, they may be authorised on a single Permit. It is important that the Permit Applicant and Responsible Supervisor discuss such plans in advance to agree the number of Permits that will be applied to a specific well location. For example it may be agreed to include all works on three separate Permits; one for civil, mechanical and instrument work, a second for electrical work under a different Permit Holder and a third for Commissioning with a Commissioning Engineer as Permit Holder.

15.3 Seismic Work Seismic crews generally operate in areas remote from existing facilities and are not subject to the PTW System in such areas; however their area of coverage sometimes extends close to or in exceptional cases even through existing facilities. The following notes apply to Seismic operations close to or inside production and electrical facilities. 15.3.1 Overhead Line Clearance The following rules apply to work close to live overhead lines: •

•

•

•

•

PR-1242 – Activities in the Vicinity of Overhead Power Lines gives required Horizontal & Vertical Clearances (Typically, 3 m Horizontally and Vertically) Clearance Certificate is required which is authorised by the Asset Custodian. Passage by or under the overhead line requires an 'Overhead Line Clearance ', which is not an Electrical Safety Document and so a Permit is required. If Work is conducted under or near the Line a 'Limitation of Access' may be required and supervision of the work by a Competent Electrical Person is required. If it is possible for machinery to come into contact with Overhead Lines, a Permit is required under Activity 9.1.

15.3.2 Hazardous Areas Outside Process Facilities and Hydrocarbon Areas, Seismic Geophone use does not require a Permit. In Process Facilities and Hydrocarbon Areas the use of Geophones requires a Class B Permit. This is Hot Work and a gas test will be required (on day of work) before work starts and possibly at other times e.g. before energising system if later in day.

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Seismic Operating Procedures, which clearly define limitations of access close to all facilities (flowlines, pipelines, wells etc.) are acceptable as adequate control for vehicle access purposes when vehicles are outside Hazardous Areas (as defined in ERD 0901) and not close to Overhead Lines (as defined in ESOP 20.) 15.3.3 Seismic Activities Which Require Permits When a PTW is required for seismic activities, the requirements of the PTW System Manual are to be followed. When Overhead Line Clearance does require a Permit, the Responsible. Supervisor/Area Authority is the Electrical Custodian not Production Ops. Staff and the responsibility for site supervision during any works are detailed in SP-1108 22 Electrical Safety Operating Procedures (ESOP-22 Live Line Working and Live Line Washing Practices. Seismic activities in areas where Permits are required will normally be Class B work (See 3.6) Gas Testing may be done by an Authorised Gas Tester from the Seismic Crew. The Permit details will stipulate the required frequency of gas testing and the acceptance limits on specific gases within which work can be conducted. Generally when the hazard is fixed and does not change in location or time (e.g. fixed electrical lines) the site examination can be done once and at any time prior to work starting. When the hazard is not fixed in location or time (e.g. possible hydrocarbon release) the precautions shall be applied immediately prior to, and if necessary repeated during, the work.

15.4 Geomatics Survey Work 15.4.1 General Survey Work Survey crews are required to operate any where within the concession areas, but vast majority of the work (> 95%) normally falls outside process facilities. The types of equipment used are either conventional optical instruments, the more modern electromagnetic instruments or the latest satellite based positioning system (GPS). Where electrical power is required to run the instrument, this is normally supplied by low voltage internal batteries e.g. 7.2v for GPS and 4.8v for electro-magnetic equipment. Therefore these activities are generally not subject to the PTW system. The main types of activities undertaken by Geomatics survey operations include the following: Geodetic surveys: - To establish reference control network by placing permanent survey monuments or markers on the ground to be used for subsequent/future survey works. This covers extensive areas, ranging from a few kilometres to several hundred kilometres. Topographic and engineering site surveys: - This involves a detailed survey of all features within a pre-defined area of interest, including ground elevations at regular grid intervals to define its topography, usually for development purposes. Route Surveys: - Similar to site surveys, but linear in extent. Mainly undertaken in new development areas for installation/construction of new pipelines, cables, roads or any other linear facilities. However routes may run within 5-10m of existing pipeline/flowline routes when joining existing facilities. Route points are marked on the ground using iron bars at suitable intervals (normally 500 m), and all features within a defined corridor (normally 50m) are surveyed. Drilling site survey supports: - First stage involves a preliminary investigation of the site, including staking out of the proposed well location. After completion of site construction a final survey of the cellar location plus other features within the site is conducted. The Page 98


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location can be in a remote, virgin area (especially exploration location) or within a congested producing field. As-built surveys: - This covers the surveying of any new features after they have been installed / laid on/in the ground so that their exact positions are known (and mapped) for future reference. 15.4.2 Surveying Activities Which Require Permits When a PTW is required for surveying activities, the requirements of the PTW System Manual are to be followed. Survey activities in areas where Permits are required will normally be Class B work (see 3.6).

15.5 Pipeline Work 15.5.1 Right of Way Certificate Third Parties sometimes require access to PDO sites to do work for customers outside PDO. For example, construction works for Government Departments that occurs within the Right Of Way (ROW) along PDO main Pipelines. In this situation, neither the Government Department, nor the Contractor performing the work, is working for PDO. PDO has, however, the right to check the work planned and to insist on precautions to be taken to safeguard PDO's assets. This formal agreement from PDO is given in a No Objections Certificate (NOC), which will be used together with a suitable cover sheet and the work plans, instead of a Permit. The stipulations agreed to in the NOC will be sufficient to safeguard PDO's assets. Further details of the precautions necessary when working on pipelines are contained in GU-501 Guidelines for Excavating and Working Around Live Pipelines . 15.5.2 Casasco Pit Entries These do not require a Confined Space Entry Certificate to accompany the Class B Permit. Any Authorised Gas Tester may do the gas testing, with the results recorded on the Permit.

15.6 Work In Operational Areas 15.6.1 Safety System Overrides 2

Overriding of Station Fire Detection system when undertaking welding in new construction areas is sometimes necessary to avoid a station trip caused by the “ultra violet (UV)” radiation released during the welding operation. There are three separate cases depending on the location of the Work:

2

Refer to PR-1001c – Temporary Override of Safeguarding Systems for more details. Page 99


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Work more than 50 m from a Process Facility The work is being done more than 50m away from the Process Facility, so a Permit is not required. A request for Safety System Override to be raised and the Operator will log this in his Override Log. He will also use the Permit Location Board to indicate the Safety Overrides that he has put in place. He will use the square Safety Override Marker together with a Red Isolation Pin and a label attached stating brief details of the Override. It is essential that close liaison between the Operator and Work Party is maintained to ensure work doesn't start before the Override is in place and that the Override is removed as soon as work is completed. Work within 50 m of an Operating Facility In this case a Permit is required for work in a Hydrocarbon Area. The Permit should have an Override request form attached to it. The station operator (Area Authority) will log this in his Override Log and use the Permit Location Board to indicate the Fire Detection Overrides that he has put in place. He will only validate the Permit after he has overridden the System. When the Permit is suspended he will reinstate the Fire Detection System. Permit Work on an Adjacent Facility This case relates to a situation where two facilities although physically close, are under the control of separate Area Authorities, e.g. Fahud MLPS, Water Injection and NOCS Plants. Work within one area requires a Permit Validated by the Area for the location of the work. The Permit should additionally state on the Override request form attached to it, the requirements for Fire Detection System overrides on the adjacent facility. The Area Authority for the adjacent facility will sign the Permit as the Other Affected Custodian, log the overrides in his override Log and use the Permit Location Board to indicate the Overrides that he has put in place. The Area Authority for the area where the work is being done, will only Validate the Permit when he has received confirmation that the overrides are in place. When the Permit is suspended he will tell the other Area Authority to remove the System overrides. 15.6.2 Installation, Replacement and Optimisation of Beam Pumps Installation of New Beam Pumps This work can be done using a Class B Permit, provided the appropriate lifting precautions are specified in the Job HSE Plan. The work involves the following: 1.

Pressure testing, and tying in the flow line at the well end requires a Class B Permit.

2.

Welding cable tray supports requires a Class B Permit (unless the well is in a Process Facility, when a Class A Permit is required.) However if the electric cables are laid in a standard position, this could be done away from the site before the pump is placed in position and would then not require a Permit.

3.

The above activities can all be done on one Class B Permit, Activities 1.1, 6.7 and 10.2.

4.

The next job is tying in the flow line at the manifold end; this should be a separate Class B Permit, Activity 6.2, which may be combined with Activity 10.2 to complete the commissioning of the pump.

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Petroleum Development Oman LLC Replacement of Beam Pumps

Replacement of existing beam pumps after a well workover is to be Class B work, Activity 6.2 Beam Pump Optimisation Work This work is to be Class B work, Activity 6.7. Flowline Leaks Where the Area Authority and Responsible Supervisor classify the leak as minor, it is to be isolated and a Class B Permit Activity 6.7 raised for a clamping repair only. No hot work of any sort is to be included in this type of clamped repair. Beam Pump Stuffing Box Repairs These are to be done under a Class B Permit Activity 6.7. 15.6.3 Well Cellar Entries These require a Confined Space Entry Certificate to accompany the Class B Permit. Any Authorised Gas Tester may do gas testing. A separate gas test is to be conducted at each entry and recorded on the Confined Space Entry Certificate or Additional Gas Test Record sheet. However for Operations Checks activity 2.3 applies. A local procedure should be produced and in place, approved and signed by the Production Co-ordinator. A Job HSE Plan must be produced, and a TRIC completed for each entry. The electronic Job HSE Plan tool will be amended; however, in the meantime the hazard and controls listed below should be used as guidance when preparing for the activity. Hazard: Poisonous insects / reptiles •

•

Visually inspect the cellar for reptiles and signs of poisonous insects. In cases where the cellar is partially filled with sand, try poking the sand surface with a long stick to check for retiles.

Hazard: Life threatening atmosphere •

A minimum of two persons is required for this work.

•

Respiratory protection type ................ (specify type) to be worn

•

Tests for oxygen and/or harmful gases/fumes are to be undertaken

•

•

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Only trained and competent persons to carry out the task, operate equipment or handle the substances involved. Each person to carry an operational personal gas detector capable of measuring Hydrocarbon, H2S and Oxygen.


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15.6.4 Replacement of Relief Valves Although this is a routine job, it involves breaching a pressurised hydrocarbon system. It therefore requires a Class B Permit Activity 6.2. It may also require Activity 5.1. A number of relief valves may be listed on a single Permit if the hazards are identical for all. If a number of relief valves are listed on a single Permit a method statement for the activity shall be attached detailing the sequence etc. The Permit will be cancelled when all the relief valves in the work pack have been replaced. 15.6.5 Tank and Vessel Entries Where a number of tasks are to be done within a tank or vessel by the same work party, it is not necessary to raise a separate Permit for each task (see 3.6 of the PTW Manual.). A Class A Permit Activity 2.1 is to be raised for the entry, with the additional Activities on it (e.g. 6.3 and 6.6 for blasting and painting.) To ensure the correct precautions are highlighted for each Activity, a combined Job HSE Plan is to be raised covering all of the work within the tank or vessel. If someone outside the work party requires access to the tank, they are to be considered part of the work party for the duration of the inspection. They are to work under the control of the Permit Holder. 15.6.6 Use of Vacuum Tankers and Delivery Trucks Vacuum Tanker Discharge of Hydrocarbons Some Stations have a connection from the Oil-Saver Pit to a point external to the fence. The tanker discharges into an open funnel with a pit underneath the funnel and the whole area is effectively a Zone 1 Area. A gas test needs to be performed before the vehicle enters the area with continuous gas monitoring during discharge. The work requires a Class B Permit Activity 6.12. If a non-drip connection is used and the tanker remains outside the hazardous area then the work does not require a Permit. Use of a Suction Tanker If the vehicle enters an operating facility to empty a pit of hydrocarbons, a Class B Permit Activity 6.13 is required. If the tanker is collecting hazardous chemicals/substances then a Class B Permit, Activity 4.1 should be used. Delivery of Liquid or Solid Stores by Vehicle to a Station Vehicle entry to an operating facility normally requires a Class B Permit Activity 6.7. However, if the vehicle entry is only for the delivery of operational stores, and the vehicle is under the Area Authority's direction throughout, then the delivery does not normally require a Permit or an Access Authorisation form. The following conditions shall be met for a Permit not to be required: •

•

•

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The delivery of goods should be planned and known to the Area Authority. Offloading is in a safe, non-hazardous, area away from hydrocarbon and electrical facilities. The Operator/Area Authority shall directly control the access and movement of the vehicle.


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15.6.7 Trenching Using Hand Tools and Power Tools Excavation or Trenching using manual Hand Tools down to a depth of 300 mm does not normally require a Permit. The exception to this being in those Areas or Stations where there are no documented details of buried services, in this case the excavation is to be treated similar to a mechanised excavation. Mechanised excavations are to follow PDO Procedures for Excavation in Operational Areas and a Class B Permit Activity 12.1 is to be used for all excavations using mechanised or power tools. 15.6.8 Radiography All radiography (x-ray and gamma sources) requires a Class B permit (Activity 4.2) and attachment of a completed Radiography Certificate Appendix 7, Job HSE plan and Sketch of the Controlled Area (7.5 us/h) boundary distances. In addition where radiography is to be carried out in a process area, or close to process facilities, the safety systems and any nucleonic level measurement should be inhibited through the approved route.

15.6.9 Instrumentation Work Resetting of trips following a station trip comes under the heading of fault finding and does not require a Permit. Installation of new equipment not tied into the existing safety/protection systems comes under Activity 6.7, and requires a Class B Permit. Work that interfaces with existing protection/safety systems e.g. remedial or modification work on existing systems or tie in of new systems requires a Permit Activity 5.1 for ESD and Fire & Gas systems, (Class A for Process Facilities, Class B for Hydrocarbon Areas). Activity 5.2 for Process Control and Machinery Control and Surveillance (Class B). 15.6.10 Maintenance of Diesel Engines in Remote Locations Routine maintenance such as filter & oil changes and adjustments comes under the heading of routine plant checks and does not require a Permit. 15.6.11 Routine Strainer Cleaning Although this involves unbolting joints on Hydrocarbon lines, it is a standard maintenance job and the strainers are isolated, depressurised and drained before work starts. Where the Station Operator is doing this, or is in attendance, it is a routine watch keeping operation which does not require a Permit. When it is being done by a contractor, unaccompanied by the Station Operator, and requires vehicle access for the suction tanker to remove spillage, a Class B Permit Activity 6.7 will be required. 15.6.12 Changing of Filters (Air and Lube Oil) Where the equipment is fitted with dual filters and has change over facilities between the filters, the work of changing the "Off Line" filter is classed as an Operational Routine and does not require a Permit.

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15.6.13 Plant Condition Monitoring and Integrity Checks Routine checking of the Rotating Equipment Condition Monitoring systems involves the use of a 'Micro-Log Data Collector' in Hazardous Areas. Pipeline wall thickness checking is also being performed with ultra sonic equipment in Hazardous Areas. Since these equipments are not certified for use in Hazardous Areas, their use falls under Activity 11.2 which means that Gas Testing precautions should be applied. If the testing equipment is Certified for the Hazardous Area, then the work will not require a Permit or any Gas Testing. 15.6.14 Air Conditioning Maintenance Regular Air Conditioning maintenance in Production Stations involves cleaning out filters and vacuuming out dust from the condenser units. This involves working within the control building and also using non-certified electrical equipment outside the control room within the plant fence. The maintenance staff isolates the system at the main switch and place a notice on the switch. So long as the work is in a non-hazardous area then the work does not require a Permit. However a TRIC is required. For hazardous areas, the work requires a Class B Permit, Activity 6.7. When preparing the work the applicant should check with the Responsible Supervisor or Area Authority to ensure that the location is indeed in a nonhazardous area. The use of the Access Authorisation form will ensure that this check is performed and the Area Authority will mark his Permit Location board to indicate the location of these personnel. 15.6.15 Remote Site Working Work at a remote site can be managed from a different Production Station from the one the system flows to. The Outside Work section of the Permit Location Board will be used to show this work e.g. Work to remove sand from a 'B-Station' Well cellar is required however, 'B-Station' is not open but 'C-Station' is open; the Permit can therefore be issued from 'C-Station'. This situation only applies when the nature of the work does not directly affect the station process. When Permit work is to take place inside the station, the station must be under the control of a fully licensed Area Authority based at the station. 15.6.16 Wireline and Well Services Well Engineering operations that are performed by a dedicated well engineering crew who operate under an approved PTW system which include job safety controls etc. do not necessarily require a PDO Permit to Work. If the well has been formally handed over to the Well Services crew via the Well Location Custodianship Transfer Form – PR-1098, they may work under their own approved PTW system This transfer mechanism, together with the responsibilities of the Well Engineering crew, are described in procedure PR-1098, and while the well is under transfer no work other than Well Engineering work should be done. It is the responsibility of the Well Engineering Supervisor to ensure all controls within the Job HSE plan are in place and monitored. The well should be isolated by Operations, under a mechanical isolation certificate, and attached to the WLCTF or PTW system. Any requirement to flow the well should be captured under a de-isolation for test (DFT). Activities that can be carried out under a WLCTF and those to be carried out under PDO PTW system are clearly defined in PR-1098.

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There may be occasions when Well Services activities in remote areas extend beyond the normal Operations department working day, and hence outside the normal 12 hour validation period. In this case, and with the agreement of the Responsible Supervisor and Area Authority, the PTW can be validated for a period of 24 hours from the start of the day shift, The proviso for this relaxation is that the PTW Holder at the remote site communicates progress and worksite conditions to the AA before the AA leaves the permit validation point at the end his normal day shift. In addition the PTW Holder should communicate completion of the activity to the Area CCR or appointed 24 hour monitoring point. The permission to allow 24 hour validation should be given by the Responsible Supervisor under Authorisation Section. 15.6.17 Hand and Spray Painting Process Plant Painting of process plant requires a Class B Permit. Painting in Areas controlled by Electrical Departments Painting in Areas controlled by Electrical Departments requires a Class B Permit as shown in Para 3.6.2. Buildings Painting of buildings located in process or electrical areas may involve working inside as well as outside a Facility fence. Inside the fence, the work will require a Class B Permit. Outside the fence, the work does not require a Permit. However a ‘No Permit Job Form’, Job HSE Plan and TRIC must be completed.

15.7 Terminal Operations 15.7.1 Work on Offshore Single Buoy Moorings Boat travel is a normal means of transport for the work party. The associated hazards are a part of normal daily work and do not need to be controlled by the Permit to Work System. Work on Single Buoy Moorings (SBMs) then falls into the following categories: 1.

Work on Offshore SBMs which involves the opening of hydrocarbon systems or the use of cranes e.g. change of hoses, chains or hawsers. Normally a Class B Permit with any isolation listed on the Permit, but Class A if hotwork is required to free shackles etc. Worksite examination only required if Class A work is involved.

2.

Routine non invasive maintenance work on offshore SBMs. No Permit required.

3.

Other repair work. Use Permit appropriate to activity as shown in 3.6. A worksite examination is only required if the Responsible Supervisor considers that the risk warrants it.

15.7.2 Work on Marine Craft Afloat 1.

Routine non invasive maintenance work on marine craft afloat. e.g. weekly planned maintenance checks. No Permit required.

2.

Non-Routine repair or maintenance work on marine craft afloat. Use normal PTW activities as shown in 3.6, with worksite examinations as specified in 4.1.

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Petroleum Development Oman LLC 15.7.3 Working Within The Terminal

Routine non invasive maintenance work that does not require any supplementary certificate, system override or affect the availability of any safety system. No Permit required. 1.

Fault Finding. This is low hazard work to find the cause of a defect, but not necessarily to repair it. No Permit is required if: a.

The work is done or supervised by a competent person;

b.

The hazards have been identified on, a Job HSE Plan , and the Responsible Supervisor has given his authorization, and a TRIC is in place.

c.

The work required to repair the fault is minor and does not fall into a PTW activity and it may be completed under the initial authorisation without raising a Permit.

NOTE: An appropriate Permit shall be raised if the repair work is more complex and includes activities requiring a Permit. 2.

Emergency Breakdown Work. The initial actions are similar to those for fault finding i.e. make the plant safe and find the cause of the breakdown. These do not require a Permit. Once the plant is in a safe state, the correct type of document for the repair will be agreed between the Responsible Supervisor and the Area Authority and a Permit issued.

3.

Multi Discipline work. If one trade is required to support another, the work can be done on the same Permit, provided that the Permit Applicant and Permit Holder have been licensed to cover multi-discipline work.

15.8 Government Gas Operations 15.8.1 Work Inside Government Gas Terminals and Block Valve Areas 1.

Use of vehicle mounted cranes and hydraulic power plants. All Government Gas vehicles are fitted with flame arresters. A Gas Test is to be done before the vehicle enters the terminal, and a permit is in place for the activity.

2.

Use of vehicle mounted crane to change out block valves. A Class B Activity 6.2 with Isolation Certificate will be required to change the block valve, and vehicle access will be included, with gas testing as required.

3.

Cleaning in line gas filters and routine minor maintenance work (e.g. opening instrument junction boxes in non hazardous areas for calibration, or greasing and checking ball valves for leakage by opening body vents.). A Class B Permit (Activity 6.7) is to be raised, with Isolations recorded on a Mechanical Isolation Certificate. The isolations are to be secured and tagged as required by 7.7.

4.

Entry into switchboard and battery rooms to reset the terminal alarm after a trip. An operator may do this work without a Permit, provided he is qualified as Appointed Electrical Person.

5.

Control Valve overhauls - Multi Task Permits. For Control Valve overhauls, all 3 disciplines are involved. A single Class B Permit (Activity 6.2) can be used, provided that a Permit Holder licensed for multi-discipline work is available. The Permit Holder does not need to be as competent in the other disciplines as he is in his own, but he must be able to check that all the requirements of the Job HSE Plan are being complied with.

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Petroleum Development Oman LLC 15.8.2 Work on Gas Pipeline and Right of Way Areas 1.

Work on the Right of Way between 10m and 25m of the pipeline. A Right of Way Certificate is required,. A No Objection Certificate (NOC) is required to give formal authorisation to contractors not working for PDO.

2.

Work within 10m of the gas pipeline whether or not it touches the line. A Class A or B Permit is required, as required by 3.6. The location of work is a hydrocarbon area. The work is to be authorised by GGO/1 signing as Other Affected Custodian where required.

3.

Any work within 25m of the Main Oil Line or SOGL Gas Line (see GU501) i.e. Within the pipeline Right Of Way requires a permit. Trenching operations should be carried out in conjunction with GU-501 Guidelines for Excavating and Working Around Live Pipelines

4. 5.

Hand excavation. Excavation to depths less than 300 mm does not require a Permit. A Right of Way Certificate is required.

6.

Work within 15m of the pipeline that does not involve any of the activities that require a Permit - e.g. Visual Inspections. No Permit is required.

15.8.3 Telephone Re-Validation of Permits Telephone Re-validation is NOT allowed. If the Hazards involved in the work are sufficient that a Permit is required, then the full requirements of the PTW System must apply.

15.9 Electrical Safety Rules and PTW Interfaces 15.9.1 Electrical Safety Documents There are five Electrical Safety Documents: 1.

Electrical Permit to Work - For HV work or LV with Circuit Main Earth (CME)

2.

Sanction for Test - For HV work

3.

Limitation of Access - For HV and LV work

4.

Electrical Isolation / De-Isolation Certificate - For HV and LV work

5.

Electrical Immobilisation Certificate - LV isolation for non Electrical work

Any work that requires an Electrical Safety Document (ESD) has the Electrical Hazards adequately covered by the ESD, but it requires a Class A or B Permit (depending on the nature of the work) when there is an interface with other work/operations. The Permit ensures consideration of additional Hazards due to that interface. 15.9.2

Types of Electrical Work Work in Electrical Areas of a Production Asset This includes work in sub-stations, switchyards etc. located in Production assets. The work is to be Authorised by the Area Electrical Supervisor (licensed as a Responsible Supervisor), agreed by the Production Responsible Supervisor as Other Affected Custodian and Validated by the Electrical Area Authority. Electrical Work on Electrical Assets controlled by Power Systems Operations Authorised by the Infrastructure Electrical Supervisor (licensed as a Responsible Supervisor), no other Affected Custodian, Validated by Electrical Area Authority.

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Non Electrical Work on Electrical Assets controlled by Power Systems Operations Authorised by the Infrastructure Electrical Supervisor (licensed as a Responsible Supervisor), no other Affected Custodian, Validated by Electrical Area Authority where possible, or by a Production Area Authority who is an Electrically Appointed person. 15.9.3 Work at Remote Electrical Assets Controlled by Power Systems Operations Electrical work will have a suitably qualified electrical person in the work party, to validate the Permit. Non-Electrical work - e.g. work on gas turbine prime mover, is covered by 15.9.2 above, except that if circumstances prevent the PDO Electrical Area Authority from Validating the Permit, a suitably qualified Production Area Authority from the local area could be used. This will require agreement from the Asset Teams, and a short familiarisation briefing for the Area Authorities. If the Asset team or Project team working within an Asset wish to maintain, construct or commission plant under custodianship of UIE3, they need to do so under the PDO PTW system. If Asset Operations wish to carry out work on Utility equipment inside a Power Station fence, the Operations Responsible Supervisor should authorise the permit. The PTW Applicant will then fax a copy of the PTW to the Power System Responsible Supervisor in Yibal, who will sign the fax copy as Affected Custodian. The signed copy will then be faxed back to the PTW Applicant who will arrange for the Operations Responsible Supervisor to sign the actual permit in box 5, but writing the words “signed on behalf of” and writing in the name of the Affected Custodian. The signed fax copy should be attached to the worksite copy of the actual permit as an auditable record of the agreement. When Power Systems wish to carry out any physical work within the fenced area, a PTW should be raised by the Power Systems Responsible Supervisor and countersigned by the Operations Responsible Supervisor as Affected Custodian. For daily validation, within an area under the control of Power Systems, this can be completed by fax under strict adherence to certain conditions. The Power Systems Area Authority must visit the site for the first validation, and at least once per week for ongoing activities where the task or risks have not changed. Subsequent validations can be completed by fax in the following way. The PTW holder faxes the PTW to the AA, who signs the fax in box 10, and returns it to the PTW holder who attaches the signed fax to the worksite copy. On suspension of the activity on a daily basis, the PTW holder faxes the suspension in box 10 to the AA. The process is repeated the following day. On completion or cancellation, the PTW is again faxed to the AA, who shall make arrangements to visit the site with the PTW holder, check the worksite has been left safe and tidy, and close or cancel the PTW. 15.9.4 Live Line Washing This normally requires only a Limitation of Access (LOA). However, if the live lines pass through a Hazardous Zone (1 or 2), a Class B Permit will be required. The Electrical Supervisor shall ensure that the Auto-Reclose facility is disabled. 15.9.5 Electrical Isolation (Low Voltage) Controls for this work are covered in the Electrical Safety rules. An Electrical Isolation / De-isolation certificate is to be issued by a responsible member of the Custodian department to a third party who is to carry out non-electrical work on apparatus which needs to be isolated before work commences. Page 108


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15.10 Permits to Work for ESP Activities This section of the PTW manual defines the requirements for the use of Permits to Work on ESP, ESPCP & PCP Activities. The section defines a standard approach across PDO on requirements for Vendor’s application of PTW system. 15.10.1 Pre-Requisites for ESP Activities The following shall be in place: •

•

•

•

•

•

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Contract Holder (CH) shall ensure the competency of Vendor Engineers, including assurance that Vendor Engineer holds all necessary certificates. CSR shall ensure that all defined controls in HEMP exercise and all identified controls in Job HSE plans are established and in place. CH shall establish and ensure that every activity has a procedure on how to execute the activity safely. CSR together with Production Coordinator and ESP, ESPCP & PCP vendor shall establish Job HSE Plans specific for every activity of ESP, ESPCP & PCP in their respective areas. The Online Job HSE Plan system should be used as baseline. The established Job HSE Plans shall be made available to CSR, Production Coordinator/Supervisor and Vendor.

The steps below shall be followed for all activities that require a Job HSE Plan: 1.

Responsible Supervisor requests CSR to attend job.

2.

CSR instructs Vendor Engineer to carry out the job. The means of communication could be by e.g. GSM, radio, etc. appropriate for hazardous area. CSR instructs Vendor Engineer to refer to Job HSE Plan relevant to the activity and verify that all controls are in place.

3.

Vendor Engineer informs CCR when the job is started and completed.

4.

CCR Operator logs the work details in the “Station Log Book” including the start and completion time and reports the status to the Responsible Supervisor.

5.

Vendor Engineer submits Job HSE Plans for all completed jobs to CSR for documentation and assurance on return to base.


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Petroleum Development Oman LLC 15.10.2 Permit Requirements for ESP Activities *Activities system:

requiring

Commissioning ESPCP & PCP

of

PTW

Activities requiring only Job HSE plan:

Activities Permit:

ESP,

Working on ESP, ESPCP & PCP panel/Troubleshooting

Data Collection including download data from ESP by using DH sensor

Program software (adjustment to controller) if controller is inside the ESP Panel

Program software (adjustment to controller) if controller is outside ESP Panel

Replacing pigtail at Wellhead (Isolated)

Assist to restart ESP, ESPCP & PCP after STN S/D. (In this case if vendor engineer is in remote area “Access Permit” can be obtained by any means of communication and sign off the “Access Permit” form on return for documentation and assurance)

Fluid Shot

ESP etc Generator

powered

by

Visual Panel

requiring

Inspection

Access

of

ESP

*(Note: The Electrical Supervisor to sign as affected custodian with direct liaising with ESP-CSR and the Production supervisor to sign as Responsible Supervisor).

15.11 Permits To Work On Drilling Rigs This Section of the PTW Manual defines the requirements for the use of Permits to Work on Drilling Rigs operating under contract to PDO. 15.11.1 PTW Systems on Contractor Operated Drilling Rigs A Drilling Contractor may operate his own PTW System, if it has been formally approved by PDO. Before approval, the Contractor’s system should be examined by PDO to ensure it complies with the checklist contained in 15.11.5. If a Contractor cannot meet the required standard, the PDO PTW System is to be operated on the Rig. In this case, the requirements of this manual, except for Section 9 (Work Tracking), shall apply. The PDO Drilling Supervisor is to act as the Responsible Supervisor and the Toolpusher as the Area Authority. If the PDO PTW System is being used, the list of activities requiring Permit in 15.11.2 below is to apply in addition to relevant activities from 3.6 of the PDO PTW Manual. 15.11.2 Activities requiring Permits on Contractor Operated Drilling Rigs The activities listed require a Permit to Work on all drilling rigs working for PDO. Maintenance •

Hot Work, except when done in the approved rig workshop.

•

Isolation of rig safety systems.

•

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Work in those confined spaces where there is a risk from toxic fumes or oxygen depletion.

•

Major maintenance on mud pump.

•

Non-routine maintenance in mast during normal operations. PR-1172 – Permit to Work System

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•

Maintenance / repair / painting from a personnel basket during any operations.

•

Man-riding hoist operations.

•

Scaffold erection on Rig or Camp site.

•

Working on equipment which requires electrical isolation.

•

•

•

Working on equipment which requires a secure mechanical isolation to minimise the potential hazard. Re-charging of Nitrogen Unit Bottles. Inspection of mast / standpipe / derrick / substructure fixtures and fittings during normal operations.

•

Killing well / major work on Xmas Tree while Rig rigging up / down.

•

Grit blasting.

•

Pressure cleaning of tubulars by subcontractor.

Pressure Testing •

•

•

•

Cement Unit pressure testing other than cement unit related Rig work. Any pressure tests not part of current rig work (e.g. Pre-test of BOP / test manifold / choke manifold.) Flowline pressure testing. Installation of secondary Contractor’s equipment e.g. Solids control equipment, filters or mixing machinery.

15.11.3 Activities Requiring Signature from PDO Drilling Supervisor when Contractor PTW System is being Used. When the Contractor’s PTW System is being used, the following activities require the Permit to be counter-signed by the PDO Drilling Supervisor: •

Hot Work, except when done in the approved rig workshop.

•

Isolation of rig safety systems.

When required to counter-sign a Contractors Permit, the PDO Drilling Supervisor takes responsibility for: •

Agreeing that the work should be done on the equipment involved at the proposed time.

•

Ensuring that all hazards have been identified.

•

Reviewing the Job HSE Plan to ensure that it is correct for the work.

•

Deciding on necessary worksite preparations and safety precautions.

The Toolpusher has all other responsibilities listed in the Contractor’s PTW System.

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15.11.4 Work Done on or Near Drilling Rigs by Departments other than Well Engineering Some work on the drilling location will be performed by or for departments other than Drilling, e.g. welding and testing flowlines, digging pits etc. This work is to be covered by a PDO Permit to Work. The requirements are as follows: Work On the Drilling Location •

•

•

The Permit is to be raised by the appropriate Permit Applicant for the personnel carrying out the work. The Permit is to be Authorised and Validated by the PDO Drilling Supervisor, who will act as both the Responsible Supervisor and the Area Authority. The Permit need not be entered into a Work Tracking System (see Section 9)

Work Near the Drilling Location Where the work is done outside the drilling location, but within 100 metres of the well, the following shall apply: •

•

•

•

The Permit is to be raised by the appropriate Permit Applicant for the personnel carrying out the work. The Permit is to be Authorised by a Responsible Supervisor, and Validated by an Area Authority, from the PDO Asset Holder department for the area. The Drilling Supervisor is to sign the Permit as the Other Affected Custodian. The Permit is to be entered in the PDO Work Tracking System (see Section 9 of the PTW Manual).

15.11.5 Checklist for Contractor Permit to Work Systems This Checklist contains a list of questions against which a Contractor's Permit to Work System should be checked before authorising it for use. If the answer to any of these questions is 'No', the Contractor should be required to amend his system. PTW System •

•

•

Is there a procedure defining how the PTW System operates? Is there a list of work requiring Permit, which complies with the list in 3.6 of the PTW Manual? Does the PTW system apply to the Company and all its sub-contractors?

PTW Procedure •

Does the PTW procedure define who authorises Permits?

•

Are personnel prevented from authorising themselves to work?

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•

Are records of all Authorised and Suspended Permits kept on the Rig site?

•

Is a copy of the Permit displayed at the worksite?

•

Is the Person to whom the Permit is Issued named on the Permit?

•

Are hazards and precautions listed on the Permit or Job HSE Plan?

•

Does the Permit require clear definition of the work to be done?

•

Does the Permit state the specific location of the work?

•

Are Permits signed by the person to whom they are issued? PR-1172 – Permit to Work System

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•

•

•

•

•

•


Is there a defined Validity period for a Permit? Does the procedure include checks to prevent conflicting activities from being authorised? Is there a procedure for handover when the person in charge of the work changes? Are there documented isolation procedures? Does the procedure state what must be done when an unsafe condition occurs or an alarm sounds? Is there a signature to confirm that work is complete, and that the worksite has been left safe?

Training in PTW •

Are personnel trained in the operation of the system, to the standards required by the E&P Forum Guidelines on Permit to Work Systems?

•

Are personnel who authorise Permits themselves authorised?

•

Is the competence of authorising personnel assessed?

•

Is there a record of training and assessment?

•

Are subcontractors included in the training requirement?

15.12 Use of Well Flushby Unit When a well flushby unit is used, the activity is often remote from a station. In this case, the permit validation will be carried out by the CCR, and the following will apply: A permit will be raised to cover a week or specified period determined appropriate by the production team. A photocopy of the permit will be issued to each field Area Authority for inclusion in the permit rack when a well associated with that station is identified for flushby. The permit will not be Well specific but will cover the 4 predefined activities detailed by the procedures provided by Tierra Alta. The Tierra Alta procedures will detail the precautions required to mitigate risks identified on arrival at site as well as for all activities during their defined task. The permit originator and holder will be FBU crew members. The Wells that will be tackled by the FBU will be identified By 16:00 the day before via an email to the CCR, supervisors and appropriate operator area authority accounts + all those wishing to receive such notification by the Production Programming Team. The Crew will obtain daily permit validation from the CCR at 06:00 each day, the CCR will also provide the crew with the telephone numbers of the Area authorities involved for each well in case of urgent issues. When the crew arrives at a well site they will asses that it is safe to approach the well pad and will then communicate this to the CCR who will enter this in the CCR log book. Once approval is given by the CCR, They will then attempt the specific approved activity. The CCR will keep the Area Authority at the appropriate station informed of the ongoing activities, and the area authority will mark up the permit location board for the activity, using the permit number and photocopy received earlier

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Once the activity is complete the FBU crew will again inform the CCR that they have left the well site in a safe condition . The CCR will advise the crew to leave the pump running or shutdown. At the end of the day the crew will return to the CCR to suspend the permit. The CCR will advise the station Area Authority accordingly.

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Revision 6.1 Effective: Dec-08


Appendix 1 – Class A Permit to Work CLASS A PERMIT

PETROLEUM DEVELOPMENT OMAN

1. APPLICATION AND DESCRIPTION (by Applicant) Location: Work Site

PERMIT No.

Work Order Title:

Hot Work Involved: Yes

No

7. VEHICLE ACCESS to restricted Area

V eh ic le A cc es s R ou te P la n p re pa re d a nd a pp ro ve d

Y ES

P ER MI T N o.

Permission is given to the Permit Holder to take the following vehicle(s) of the following type(s) to the work site/location: Vehicle types: Location: Vehicle Access is subject to a satisfactory gas test being carried out on each occasion, with the result recorded in Box 8.

A

Copies: Pink - Worksite, Green - Permit Control, White - Information Hazardous Area Classification

A

8. GAS TEST RECORD - results for Confined Space Entry to be recorded on Certificate, NOT HERE. Date

Time

Res ul t

Signat ure Auth. No.

Dat e

Tim e

Result

Si gnature Auth. No.

Date

Time

Res ult

Signature Auth. No.

HAZARDOUS ZONE 0

No. in Work Party

HAZARDOUS ZONE 1 HAZARDOUS ZONE 2

Work Description

NON-HAZARDOUS

NORM Contaminated Area YES NO

Name :

H2S Facility Classification HIGH LOW NON Insert Max ppm Activity Nos. ( Refer to PTW System Manual Section 3.6.1)

Vehicle Entry Required? Yes No Process Facility

Hydrocarbon Area

Planned Work Schedule Time Date

Associated Permit Nos. Planner Agrees In Frozen Plan

Work Order / EWP No

Y

2 . C ER TI FI CAT ES AT TAC HE D T O T HI S PE RM IT √

Certificate

9. SAFETY COORDINATION Any conflicting work identified will be Suspended or Cancelled before first Validation. Worksit e preparations specified in Box 2 may proceed.

Mercury Potential YES YES NONO

N

Gas test to be repeated at intervals of:


Continuous gas monitoring required during execution of the work

Date: 10c. SUSPENSION

To be signed by the Area Authority at the start of each work period.

To be signed by the oncoming Permit Holder whenever the permit is validated or whenever responsibility passes from one Permit Holder to another. I have been fully briefed by the Applicant on the work and necessary precautions. I am satisfied that the worksite is safe for work to start. I will brief t he work party and supervise the work. I will s top the work if the permit requirments cannot be met.

To be signed by the offgoing Permit Holder whenever work stops for more than 4 hours, and when supervisory responsibility changes.

I am satified that the conditions at the worksite are safe for the work specified. I validate t he Permit for the period stated, provided the work party adhere to the permit requirements. Work must stop if the permit requirements cannot be met.

Start Finish

Gases to be tested for:

Time:

10b. ACCEPTANCE

3 . G AS TE ST IN G R EQ UI RE ME NT S

Certificate Number(s)

Signature:

10a. VALIDATION

Date

Validated Time Time From To

Na me

I ni ti al s

Na me

PDO Ind/ Contractor

Date

Signature

I have examined the worksite. It has been left in a clear and safe condition.

Time

Date

Signature

Hydrocarbons H2S Oxygen Other Yes No (Specify) hrs 3a. WORKSITE EXAMINATION required by Area Authority

Mechanical Isolation Mechanical Isolation Continuation Excavation Overhead Line Clearance Electrical Safety Document Elec. Immobilisation/Mobilisation Radiography Safeguarding Isolation

Worksite Examination 1st day

Yes

No

By Validator required

Yes

No


√

TRIC Required

Everyday

4. APPLICATION BY APPLICANT I have reviewed the task and am s atisfied that the information in this Application and in the Job HSE Plan is adequate and correct

Name:

Position/Ind.

Signed:

CANCELLATION 11. WORK COMPLETED a. Permit Return by Permit Holder

Contractor:

Tel. No:

Date:

Work Complete. Worksite and equipment affected left in a safe condition.

Duration Requested

FROM: Date: i

Time:

TO:

Name:

Date:

Post:

12. WORK NOT COMPLETED a. Permit Return by Permit Holder Time:

A JOB SAFETY PLAN MUST BE ATTACHED TO THIS PERMIT

5. AGREEMENT by Other Affected Custodian

6. AUTHORISATION by Responsible Supervisor I have examin ed the Permit and Job Safety Plan. The work describ ed in t hi s P er mi t a nd at ta ch ed Jo b s afe ty Pl an is au th ori se d f or th is pe ri od : Daily Pre-Validation Allowed? NO YES 24 Hour Validation Allowed? NO YES FROM: Date: TO: Time: Date: Time:

Signed

Ref Ind:

Time

Signed: Date: b. Permit Cancellation by Area Authority

* Delete as appropriate

Worksite checked, clear and sa fe (Process Facility only)

Name:

Post:

Time:

*Reinstatements/De-isolations Complete. Signed: b. Permit Cancellation by Area Authority

Isolations retained under Cert No: * Delete as appropriate

Name

*Work is continuing under Permit No: * Isolations retained under Isolation Certificate No:

I agree that the work described may be carried out d uri ng th e p ro po se d p eri od : Name

Work not complete. Worksite and equipment affected left in a safe condition.

Signed

Date:

Worksite checked, clear and safe (Process Facility only)

Date Ref Ind:

6a Production Co-ordinator (if Required)

Date

Name

Ref Ind:

Extension valid until: Date

Signed

Date

Name:

Page 115

Time

Name:

Ind:

Time:

Name:

Date:

Signed: Name: Signed:

Ind:

Time:

6a. EXTENSION AUTHORISATION by Responsible Supervisor Time: Sign:

Ref Ind:

Signed: 13. REGISTRATION OF CANCELLATION

All necessary documentation collected and retained in PCF


Date: Time: PC Date: Class A Rev 7 SAP 1000066565

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Appendix 2 – Class B Permit to Work CLASS B PERMIT

PETROLEUM DEVELOPMENT OMAN

1. APPLICATION AND DESCRIPTION (by Applicant)

PERMIT No.

Work Order Title:

Hot Work Involved: Yes

No

7. VEHICLE ACCESS to restricted Area

V eh ic le A cc es s R ou te P la n p re pa re d a nd a pp ro ve d

Y ES

P ER MI T N o.

Permission is given to the Permit Holder t o take the following vehicle(s) of the following type(s) to the work site/ location: Vehicle type and Reg'n No: Location: Vehicle Access is subject to a satisfactory gas test being carried out on each occasion, with the result recorded in Box 8.

B

B

8. GAS TEST RECORD - results for Confined Space Entry to be recorded on Certificate, NOT HERE.

Copies: Blue - Worksite, Green - Permit Control, White - Information

Location: Work Site

Hazardous Area Classification

No. in Work Party

HAZARDOUS ZONE 1

Work Description

NON-HAZARDOUS

Date

Time

Result

Signature Auth. No.

Date

Time

Result

Signature Auth. No.

Date

Time

Result

Signature Auth. No.

HAZARDOUS ZONE 0 HAZARDOUS ZONE 2

NORM Restricted Area YES NO

9. SAFETY COORDINATION Any conflicting work identified will be Suspended or Cancelled before first Validation. Worksite preparations specified in Box 2 may proceed.

Mercury Potential YES YES NONO

Name : 10a. VALIDATION

Insert Max ppm

To be signed by the Area Authority at the start of each work period.

Activity Nos. ( Refer to PTW System Manual Section 3.6.1)

Vehicle Entry Required? Yes No Process Facility

Hydrocarbon Area

Planned Work Schedule Date Time

Associated Permit Nos. Planner Agrees In Frozen Plan

Work Order / EWP No

Y

2 . C ER TI FI CAT ES AT TAC HE D T O T HI S P ER MI T √

Certificate

N

Start Finish

Gases to be tested for:

Gas test Continuous gas monitoring to be required during execution of repeated the work at intervals of:


Time:

10b. ACCEPTANCE

Date

Validated Time Time From To

N am e

I ni ti al s

N am e

PDO Ind/ Contractor

Date

Date: 10c. SUSPENSION

To be signed by the oncoming Permit Holder whenever the permit is validated or whenever responsibility passes from one Permit Holder to another. I am satified that the conditions at the worksite are safe I have been fully briefed by the Applicant on the work for the work specified. I validate the Permit for the and necessary precautions. I am satisfied that the period stated, provided the work party adhere to the worksite is safe for work to start. I will brief the work permit requirements. Work must stop if the permit party and supervise the work. I will stop the work if the requirements cannot be met. permit requirments cannot be met.

3 . G AS TE ST IN G R EQ UI RE ME NT S

Certificate Number(s)

Signature:

H2S Facility Classification HIGH LOW NON

Signature

To be signed by the offgoing Permit Holder whenever work stops for more than 4 hours, and when supervisory responsibility changes. I have examined the worksite. It has been left in a clear and safe condition.

Time

Date

Sig nature

Hydrocarbons H2S Oxygen Other Yes No (Specify) hrs 3a. WORKSITE EXAMINATION required by Area Authority

Mechanical Isolation Mechanical Isolation Continuation Excavation Overhead Line Clearance Electrical Safety Document Electrical Immobilisation/Mobilisation

Radiography Safeguarding Isolation

Worksite Examination 1 st day

Yes

No

By Validator required

Yes

No


√

TRIC Required

Everyday

4. APPLICATION BY APPLICANT I have reviewed the task and am satisfied that the information in this Application and in the Job HSE Plan is adequate and correct

Name:

Position/Ind.

Signed:

CANCELLATION 11. WORK COMPLETED a. Permit Return by Permi t Holder

Contractor:

Tel. No:

Date:

Work Complete. Worksite and equipment affected left in a safe condition.

Work not complete. Worksite and equipment affected left in a safe condition.

Name:

Time:

*Work is continuing under Permit No:

Date:

* Delete as appropriate

Duration Requested

FROM: Date: i

Time:

TO:

Date:

Post:

12. WORK NOT COMPLETED a. Permit Retu rn b y Permit Holder

A JOB SAFETY PLAN MUST BE ATTACHED TO THIS PERMIT

* Isolations retained under Isolation Certificate No:

5. AGREEMENT by Other Affected Custodian

6. AUTHORISATION by Responsible Supervisor

I agree that the work described may be carried out d ur ing the pr opo se d p eri od :

I have examin ed the Permit and Job Safety Plan. The work described in t hi s Pe rm it an d a t ac he d J ob sa fe ty Pl an is au th ori sed fo r t hi s pe ri od : Daily Pre-Validation Allowed? NO YES 24 Hour Validation Allowed? NO YES FROM: Date: Time: TO: Date: Time:

Name Signed

Ref Ind:


Name:

Post:

Time:

*Reinstatements/De-isolations Complete. Signed: b. Permit Cancellation by Area Authority

Isolations retained under Cert No: * Delete as appropriate

Name Time

Signed: b. Permit Cancellation by Area Authority

Signed

Date:


Date Ref Ind:

6a Production Co-ordinator (if Required)

Date

Name

Ref Ind:

Extension valid until: Date

Signed

Date

Name:

Page 116

Time

Name:

Ind:

Time:

Name:

Date:

Signed: Name: Signed:

Ind:

Time:

6a. EXTENSION AUTHORISATION by Responsible Supervisor Time: Sign:

Ref Ind:

Signed: 13. REGISTRATION OF CANCELLATION

All necessary documentation collected and retained in PCF


Date: Time: PC Date: Class B Rev 7 SAP 1000066566

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Appendix 3 - Mechanical Isolation Certificate & De-Isolation for Test Record Sheet

Page 117


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Page 118



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Page 119



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Appendix 4 – Confined Space Entry, Additional Gas Test Record, Record of Personnel Entry and Exit

Page 120


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Page 121



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Appendix 5 – Access Authorisation Form

Page 122


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Appendix 6 - Excavation Certificate

Page 123


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Appendix 7 – Radiography Certificate

Page 124


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Appendix 8 – Clearance Certificate for Work in the Vicinity or Passage Under O/H Lines

Page 125


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Appendix 9 - Exceeding The Number Of Permits Under a Single Area Authority Request Form Exceeding Recommended Number of Permits Under a Single Area Authority SECTION 1 - INITIATION Name Ref. Ind.

Date

Area

Facility / Station

Description of Activities

Reason(s) For Exceeding 14 Permits for a Single Area Authority

SECTION 2 - RISK ASSESSMENT A Risk Assessment has been carried out for this request and the following have been identified.

RISKS

PRECAUTIONS

The following PDO Risk Rating as been awarded to this request.

LOW

MEDIUM

HIGH

SECTION 3 - APPROVAL (Max 14 Days) Approved by: (Responsible Supervisor) Name Signature Ref. Ind.

Date

Start Date of Waiver

End Date of W aiver

Agreed by: (Area Authority) Name Ref. Ind.

Date

Signature

Page 126


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Appendix 10 – Pigging Authorisation Form

Page 127


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Page 128



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Appendix 11 – Checklist 1

Link to PTW Checklist 1

Page 129


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Appendix 12 – Checklist 2

Link to PTW Checklist 2

Page 130


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Appendix 13 - Definitions and Abbreviations AGT


ALARP

As Low As Reasonably Practicable

CCR

Central Control Room

CSR

Company Site Representative

DTL

Delivery Team Leader

EPI

Extended Period Isolation

ESD

Emergency Shutdown

ESOP

Electrical Safety Operating Procedures

ESP

Electric Submersible Pump

ESPCP

Electric Submersible Pump Control Panel

ESR

Electrical Safety Rule

F&G

Fire and Gas

GPS

Global Positioning System

HEMP

Hazard and Effects Management Process

HSE

Health Safety and Environment

HV

High Voltage

LOA

Limitation of Access

LV

Low Voltage

NDT

Non Destructive testing

NOC

No Objection Certificate

NORM

Naturally Occurring Radioactive Material

PCP

Pump Control Panel

PTW

Permit to Work

QA

Quality Assurance

QC

Quality Control

ROW

Right of Way

SAP-PM

Systems Applications and Processes – Planned Maintenance Module

SBM

Single Buoy Mooring

SFT

Sanction for Test

TRIC

Toolbox Talk Risk Identification Card

UV

Ultra Violet

Page 131


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PDO - Permit to Work

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