CONOCO PHILLIPS Spec

CONOCO INDONESIA INC. LTD. PROJECTS DEPARTMENT SPECIFICATION TITLE

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DESIGN CHANGE CONTROL PROCEDURE

84501-9200-9P-001 84501-9200-9P-001

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REVISION CONTROL SHEET LATE LATEST ST REV REV

DATE DATE ISSU ISSUED ED

PREP PREPA ARED RED

REV REVIE IEWE WED D

APPR APPROV OVED ED

COMM COMMEN ENTS TS

O

14 August 2002

C.Binks

J.Sexton

A.McIntosh

Issued For Use

1

1 October 2002

C.Binks

R.Ford

A.McIntosh

Flowchart Updates

2

1 March 2003

C.Binks

R.Ford

A.McIntosh

Department Name Change

Check with Document Control for latest available Revision


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TABLE OF CONTENTS

1.

INTRODUCTION ..................................................................................................4

2.

APPLICABILITY...................................................................................................4

3.

DEFINITIONS ....................................................................................................... 5

4.

RESPONSIBILITIES.............................................................................................7

5.

REFERENCES .....................................................................................................7

6.

PREFERENCES...................................................................................................7

7.

DESIGN CHANGE REVIEW BOARD ................................................................13

8.

COMPLETION OF DESIGN CHANGE NOTICE FORMS ..................................14

9.

DISTRIBUTION ..................................................................................................15 APPENDIX 1

DESIGN CHANGE FLOWCHARTS ....................................16-18

DESIGN CHANGE NOTICE FORM...............................................................19-20 EXAMPLE OF A TYPICAL COST ESTIMATE SHEET......................................21



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1.

INTRODUCTION

1.1.

Purpose

The purpose of this procedure is to ensure that all proposed changes to the design during the execution of the Project are fully documented, evaluated for impact upon the Project and approved by all affected groups prior to implementation of a change. The approval levels required prior to any change being made are also detailed herein and the procedure describes the process that controls project-wide design changes. The procedure describes the overall Design Change Control System for the Project Team and defines the responsibilities for its implementation and this system provides the following: •

•

•

•

Compilation of all relevant information such as technical, cost, schedule, weight, life cycle cost, etc., which is essential for the evaluation of the proposed changes. A systematic process for obtaining management approval to implement a change on the Project. The opportunity for all affected groups and organizations to evaluate the effect of each proposed change, including safety, reliability, weight, operability, and maintainability of the installations. Advance notification to all affected groups of pending changes to ensure coherent change implementation planning.

It is incumbent upon the Contractor to prepare and implement his own procedures and methods of controlling changes to the design of the Project. It is expected that the contractor have similar procedures within his organization that provide the facility of rigorous controls to any changes of the design. 2.

APPLICABILITY

This procedure shall apply specifically to the Project Team in the instance where the Contractor is unable to control any proposed Design Change within his own organization or responsibility under the Contract. Typical examples would be, but not limited to the following: a) A change in the Basis of Design document included as an integral part of the Contract.



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b) Anything having an external interface outwith the contractual boundary of the Contractor’s own organization (CIIL, MIGAS, other regulatory bodies, other contractor’s etc.). c) Anything that affects equipment etc. purchased on a provisional sum basis. When these occasions arise this Procedure will apply to the Project Team. 3.

DEFINITIONS

3.1

Design Change

A Design Change is an alteration or addition to, or deletion from the Contract Basis of Design, anything having an external interface outwith the contractual boundary of the Contractor’s own organization, anything that affects equipment etc. purchased on a provisional sum basis. The initial point of reference shall be the Contract Basis of Design and any subsequent changes to engineering documentation generated throughout the Project Execution Phase. Design Changes shall be classified in accordance with the following criteria: 3.1.1 Discretionar y those entirely within the Project Team or Non Discretionary those required to comply with regulations or industry standards, or negotiations and agreements with third parties. ,

,

3.1.2 Major Design Change

A Major Design Change is one that meets one or more of the following criteria: •

The total cost impact, increase or decrease, is greater than the affected Project Manager’s Facility Authority limit.

•

The cost impact exceeds the Project area budget.

•

More than one facility within the Project is affected.

•

The contractual acceptance criteria are changed.

•

•

A change is required to the Project Master Schedule. The CIIL Operations Group consider there will be large impact on the life cycle costs.

The designation “Major” change will be confirmed by preliminary discussion between the appropriate Lead Engineers and Project Managers. No affected engineering documentation shall be issued for implementation prior to the approval of a Major Design Change.



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3.1.3 Minor Design Change

A limited design change that meets the following criteria: •

•

•

•

•

•

•

•

3.2

There is no effect on the budget/schedule of more than one facility of the Project. The budget of the entire Project is not impacted The total cost impact is less than or equal to the Authority Limit of the Facility Project Manager. The change implementation will not have any negative impact on the Project Master Schedule. The change does not result in weight limits being exceeded or the center of gravity being moved beyond the established spatial envelope. It is the action subsequent to a Site Query being raised by a supplier, fabricator or installation contractor. The CIIL Operations Group consider that there will not be any serious effect on the life cycle costs or development Net Present Value (NPV). No negative impact on reliability

Manufacturing Change/Concession

A manufacturing change/concession is a “make operable/make fit or use as is” change to approved engineering documentation. The request is made at a manufacturing, fabrication, erection or test site and is submitted to permit fabrication, assembly and/or test operations to proceed without schedule delay. The change/concession shall be documented in accordance with an approved Design Change Request system. 3.3

Engineering Documentation

Engineering documentation includes drawings, specifications, data sheets, material take-off lists, parts lists, technical instructions etc., produced in accordance with the terms of the Contract for the Project. 3.4

Design Change Request (DCR)

This is a formal document by which any individual may request a change that merits a Design Change proposal be investigated. Any engineering or construction person working on the Project can initiate a Design Change Request (DCR). This includes the Project Team and Contractor teams. A Design Change Request is initiated by completing the Design Change Notice (DCN) Form. Check with Document Control for latest available Revision


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Such forms are considered to be in the “Request” state until all required approvals are obtained. 3.5

Design Change Notice (DCN)

A DCN is the formal instrument, document, or group of documents issued by the Contractor which initiates, authorizes, and communicates the essence of the Design Change throughout the Project, once a Design Change has been approved in accordance with Contractor procedures and, where applicable, this Procedure. All DCN's will be consecutively numbered in accordance with the Document Numbering Specification 84501-9200-9L-001. 3.6

Design Change Review Board (DCRB)

The DCRB is the body empowered to review major design changes when requested to do so by the CIIL Projects Manager and shall consist of project personnel as requested by the CIIL Projects Manager. The CIIL Infrastructure Manager or his designated representative, shall chair the DCRB. This shall be reviewed dependant upon the geographical location. 3.7

Non Discretionary Change

A Non Discretionary change is an engineering design change that is required to permit design, engineering, fabrication or installation of an item to meet statutory or safety requirements e.g. Government Agencies, Certifying Authority (MIGAS), Marine Surveyor, Operator Standards etc. 4.

RESPONSIBILITIES

It is the responsibility of all Project personnel to implement this procedure. 5.

REFERENCES

Project Specification 84501-9200-9L-001 “Document Numbering”. Project Specification 84501-9200-9P-002 “Interdiscipline Check Procedure (IDC)” 6.

PROCEDURE

6.1

Initiation of a DCR/DCN

It is expected that the Contractor will have his own procedure for the processing any potential design change up to the point of being passed to the Project Team for further action.



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Prior to raising a Discretionary DCN, informal discussions as to the impact of the proposed change on the Project should be held between appropriate involved parties to determine if there are any reasons why the proposed Design Change cannot be implemented and to prevent wasting time evaluating the DCN. If the individual originating the request decides to proceed, he/she completes the DCN form contained herein. Completed DCN's should be forwarded to the corresponding Lead Project Engineer. DCN's originating outside of the Project should be directed to the Project Lead whose area will likely be impacted the most. If there is some uncertainty as to who to send the DCN to, Project Management should be consulted. A minor DCN will be approved by the Engineering Manager and shall be administered by that group and will not require action outside of that facility group. A major Design Change will require central administration, detailed cost estimates, schedule impact etc. and require approval by the relevant managers. The Project Lead engineer within the group initiating the DCN, in conjunction with the Cost and Planning groups, shall complete a DCN form and co-ordinate the compilation of the requisite supporting information. Proposals for design changes outwith the Project group, e.g. Operations, Drilling, etc. shall be coordinated by the Project Facility Group most affected by the proposed change. 6.2

Acceptance of DCN's by Lead Project Engineers

The Lead Project Engineer receiving a Discretionary DCN should perform an initial assessment to determine if the suggested Design Change is reasonable and consistent with the overall design philosophy. In order to proceed with a full evaluation, the Project Lead should also determine whether or not sufficient information exists or can be sufficiently developed to assess the impact of the change, and decide whether or not the change adds significant enough value to the project, given the inherent risk of any change. In this context, the Lead Project Engineer has veto power over any Discretionary DCN that he/she deems to be unreasonable, incapable of being assessed, inconsistent, or too risky. In such instances where this veto right is exercised, the Lead Project Engineer is obligated to get back with the person who submitted the DCN and explain the rationale which led to its rejection. If the Lead Project Engineer agrees the DCN is Non Discretionary then he/she is obligated to proceed with evaluation and has no veto rights. If there is any ,



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question as to whether the DCN is Discretionary or Non Discretionary Project Management should be consulted. ,

The DCN serial number shall be assigned after acceptance by the Lead Project Engineer(s) 6.3

Development of Supporting Information

All DCN's accepted by the Lead Project Engineers are to be fully evaluated as to their cost and schedule impact. The evaluation is to include a reasonable assessment of the foreseeable risks associated with implementing the change. The risk assessment should consider the probability of certain negative outcomes or impacts on other activities (including process safety) and include proposed methods of risk mitigation. If the DCN has the potential to impact other project areas, the Lead Project Engineer must coordinate the evaluation with the Lead Project Engineer(s) so that the final assessment properly reflects the totality of the impact that the Design Change is expected to have. All DCN's are to be subjected to the Inter-Disciplinary Check (IDC) process (84501-9200-9P-002). No affected engineering documentation shall be issued for implementation prior to the approval of a Design Change Notice.

The relevant Project Engineer shall: •

Collect supporting information to complete the DCN forms.

•

Obtain the requisite inter-group approvals and comments.

•

•

•

•

Obtain the estimated cost of change and establish the cost boundaries (Min and Max). Determine the current purchasing/manufacturing status and/or fabrication status of all items associated with the change and the effects. Obtain from planning any impact on the schedule. Categorize the DCN as Discretionary or Non-Discretionary, the financial and schedule impact will classify the DCN as Major or Minor accordingly.

If the design change is classified as “Major” it should first be approved within the initiating group, it can then be issued for input to the other groups affected. 6.4

Co-ordination

6.4.1 Design Changes



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Engineers shall be responsible for the co-ordination and development of all design changes emanating from within their respective groups. This activity includes maintaining all records, assigning DCN numbers according to the Document Numbering Procedure, controlling document distribution and flow, arranging meetings and co-ordinating the development of the supporting documentation. They shall be responsible for assigning the “minor” or “major” classification. The Facility Project Manager of the initiating group shall be responsible for ensuring that major changes are notified to all affected groups and are quickly progressed and approved/rejected by the Senior Project Manager. A register of all major DCN’s will be maintained by Document Control who will be responsible for allocation of sequential numbers. Affected groups outwith the Project will progress major changes in accordance with their own Change Control Procedures. It is vital that a DCN is progressed as rapidly as possible and it is expected that a maximum of 2 weeks should be allowed from initiation to completion. 6.4.2 Design Change Cost Estimates

Each cost group shall be responsible for estimating the cost associated with the DCN The cost impact shall be broken down into its engineering, procurement, construction, and Project team components. Where increased costs are involved, the value of the perceived benefit must also be assessed in appropriate cost, NPV or NPC or operational terms. The Operations Manager will be responsible to ensure that any effect on life cycle cost is highlighted and taken into consideration. 6.4.3 Design Change Schedule Impact Assessment

The planning group shall be responsible for the evaluation of any schedule impact caused by a DCN. The planning group shall co-ordinate with the relevant Project engineers to obtain the information. The schedule impact is assessed by considering the time it takes to perform and verify additional engineering, change drawings, update plans, revise material take-off and procurement lists, and address any potential interaction between parallel activities or contracts. Major changes shall be coordinated by the Project Planner who shall be responsible for raising changes as per Project Procedures.



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6.5

Review of a “Major” DCN

The initiating manager of a major DCN shall be responsible for ensuring that all affected groups are involved in the DCN review. The project engineers from the groups affected shall review the DCN and shall record on the DCN form the cost/schedule impact and desirability of the proposed change and recommend if it is accepted or rejected. If the recommendation is to reject the DCN then the reasons shall be clearly stated on the DCN form and returned to the originator. The review shall include a reasonable assessment of the foreseeable risks associated with implementing the change. The risk assessment should consider the probability of certain negative outcomes or impacts on other activities, including process safety, and include proposed methods of risk mitigation. The initiating manager will be responsible for organizing the collation of all the information and its presentation for the approval process. If the recommendation for acceptance is not unanimous then it is recommended that a DCRB be convened for final resolution. 6.6

Approvals

Once the impact of the proposed Design Change has been fully assessed, the Lead Project Engineer who coordinated the assessment will approve the DCN and forward it for distribution or further approval in accordance with the following Authority Limits: 6.6.1 Major Design Changes Project Managers

Discretionary and non-discretionary DCN's which have a negative schedule impact greater than one Week, increase project execution risks, or result in a cost impact of $250,000 or more require the approval of the respective Project Manager. All DCN's which have or are deemed to have a reasonable chance of creating a negative schedule impact must be submitted to Project Managers. 6.6.2 Minor Design Changes

Once the impact of the proposed Design Change has been fully assessed, the Lead Project Engineer who coordinated the assessment will approve the DCN and forward it for distribution or further approval in accordance with the following Authority Limits:



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Lead Project Engineers

Discretionary and non-discretionary DCN's which have no negative schedule impact, which do not increase the risk to project execution, and result in a cost impact of $100,000 or less require the approvals of the Engineering Manager. 6.7

Hold Activity

Whilst reviewing a major DCN, if it is considered necessary to initiate a “HOLD” on any engineering documentation, then the responsible Project engineer shall: •

•

•

•

6.8

Obtain approval to initiate a “HOLD” from his Manager. Advise the manufacturer (via procurement) or the fabrication site management team, of the proposed “HOLD”. Withdraw the engineering document concerned and initiate a “HOLD” on the affected area or activity. Advise all concerned parties including the Project manager of the “HOLD” action taken.

Prior Approvals

In the case of Mandatory or urgent major changes that may have an immediate impact on the project schedule, the Project manager may give approval to implement the change prior to a full evaluation and documentation of the change. This shall be authorized in writing by formal communication. This should only be considered when serious schedule impact or cost penalties would be caused by the normal DCN processing operation. 6.9

Implementation

The Lead Project engineers for the affected groups shall be responsible for the implementation of all DCN’s by means of issuing formal communications and supporting information to all affected groups. Project managers are responsible to ensure that all approved major DCN’s are implemented. When a DCN results in a CAPEX increase or decrease, the cost groups shall, where appropriate, initiate a Trend Notice in accordance with their relevant procedure. The project cost group is responsible for co-ordination of any resulting reallocation of funds and shall inform the Contracts group immediately of any impending change. When a DCN results in a change to the Project Master Schedule the project planning group shall initiate a Change Notice in accordance with the approved procedures.



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6.10

Issue of a Design Change Notice

Subsequent to approval by the Project Manager(s) the DCN shall be issued to the Operations Manager for record purposes. Upon completion of the final approval signatures Document Control shall complete the distribution to all affected parties. 7.

DESIGN CHANGE REVIEW BOARD

When the requirement arises for a major DCN to be reviewed by the DCRB, the CIIL Infrastructure Project Manager shall notify the appropriate personnel of the timing and any additional information necessary. The Project Lead Engineer responsible for raising the DCN will co-ordinate collection of the information, organize the meeting, and supply a copy of the DCN data package at least 24 hrs prior to the scheduled meeting. 7.1

DCRB Attendees

The CIIL Infrastructure Project Manager shall chair the DCRB, or delegate and shall include the following members: Originating Project Manager Affected Managers Originating Project Engineer Originating Lead Engineer Cost group representative Planning group representative Contracts group representative Operations, drilling, reservoir representatives as appropriate. Additional attendees may attend if so requested.



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7.2

Proceedings

The originating Project Manager shall present a summary of the DCN under review providing the following as a minimum: •

Description of the change

•

Reason for the change

•

Effect on other groups or organizations

•

Impact upon the Project

•

Impact upon non-project activities, e.g. drilling.

Minutes of the meeting shall be taken by a member of the originating group, noting requirements for additional data and recording decisions taken. The CII Infrastructure Coordinator may approve or reject the change at the meeting or may return the DCN later with the decision. 8.

COMPLETION OF DESIGN CHANGE NOTICE FORMS

Appendix 1 contains the sample DCN form, 2 pages, to be completed for each DCN submitted for approval. The entries are, for the most part, self-explanatory; however, the following comments may assist clarification. Page 1 •

Originating group

•

Title – indicative of the nature of the change

•

Reason for Change – reason for the requested change

•

Change Description – description of proposed change

•

Other Groups Affected – tick boxes of all groups affected

•

Approvals – signatures of persons approving the change

•

Approved Box/Rejected Box – Tick box accordingly prior to final approval by Project Manager

Page 2 •

Items Impacted – tick boxes of drawings/document types affected

•

Impact On – impact should be detailed for each discipline

•

•

References – details of any Project documentation, correspondence relating to the DCN Attachments – details of any Project documentation, correspondence relating to the DCN Check with Document Control for latest available Revision


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•

Implementation Plan – description of the implementation process for the DCN

Appendix 2 This is a typical example of a detailed cost estimate form. 9.

DISTRIBUTION

The distribution shall be affected by Document Control, who shall retain and file the original DCN, and copies shall be distributed to: •

CIIL Infrastructure Coordinator

•

CIIL Operations Manager

•

Project Manager

•

Deputy Project Manager

•

Area Project Managers

•

Discipline Lead Engineers

•

CIIL Projects Group Records Management Coordinator

•

CIIL Document Controller


APPENDIX 1 SHEET 1 OF 3 DESIGN CHANGE CONTROL PROCEDURE - EXECUTION PHASE INITIATION AND REVIEW OF A DESIGN CH ANGE NOTICE

COMPLETE DCN & FORWARD TO LEAD PROJECT ENGINEER YES

NO

END

ORIGINATOR INSISTS ON RAISING DCN

NO INFORMAL DISCUSSION HELD TO PROCEED

DCR/DCN REQUEST RAISED

NO

RETURN FOR REWORK OR PROCEED WITH DCN

OBTAIN REQUISITE INTER-GROUP APPROVALS

HOLD ON DOCUMENTS REQUIRED

YES/ NO

YES

OBTAIN MANAGER APPROVAL FOR HOLD

OBTAIN COST IMPACT AND BOUNDARIES MAX & MIN

YES

YES/NO

COMPLETE DCN & FORWARD TO LEAD PROJECT ENGINEER

COLLECT SUPPORTING INFORMATION& COMPLETE DCN

ADVISE ALL PARTIES OF PROPOSED “HOLD”

PREPARE IDC & ISSUE TO ALL AFFECTED DISCIPLINES

WITHDRAW DOCUMENT CONCERNED

OBTAIN PURCHASE, FABRICATION STATUS

OBTAIN PLANNING IMPACT

SEE FLOWCHART DCN-2

DESIGN CHANGE FLOWCHART DCN-1


APPENDIX 1 SHEET 2 OF 3 DESIGN CHANGE CONTROL PROCEDURE - EXECUTION PHASE CATEGORIZATION AND APPROVAL OF A DESIGN CHANGE NOTICE

COST IMPACT <= $25,000 NO SCHEDULE IMPACT

MINOR DCN

LEAD DISCIPLINE ENGINEER

MINOR DCN

APPROVAL ENGINEERING MANAGER

COST IMPACT <=$250,00 SCHEDULE IMPACT<= 1WEEK

MAJOR DCN

APPROVAL TOPSIDES/HULL MANAGER

COST IMPACT >=$250,000 SCHEDULE IMPACT >= 1 WEEK

MAJOR DCN

APPROVAL PROJECT MANAGER


MINOR DCN


COST IMPACT <=$100,00 NO SCHEDULE IMPACT

MINOR DCN

APPROVAL ENGINERING MANAGER

COST IMPACT <= $100,000 NO SCHEDULE IMPACT DISCRETIONARY DESIGN CHANGE NOTICE

NON-DISCRETIONARY DESIGN CHANGE NOTICE

INFORM CII OPERATIONS MANAGER


APPENDIX 1 SHEET 2 OF 3 DESIGN CHANGE CONTROL PROCEDURE - EXECUTION PHASE CATEGORIZATION AND APPROVAL OF A DESIGN CHANGE NOTICE


MINOR DCN


MINOR DCN

APPROVAL ENGINEERING MANAGER

COST IMPACT <=$250,00 SCHEDULE IMPACT<= 1WEEK

MAJOR DCN



MAJOR DCN



MINOR DCN


COST IMPACT <=$100,00 NO SCHEDULE IMPACT

MINOR DCN

APPROVAL ENGINERING MANAGER

COST IMPACT <=$250,000 SCHEDULE IMPACT <= 1 WEEK

MAJOR DCN


MAJOR DCN

COST IMPACT <= $100,000 NO SCHEDULE IMPACT DISCRETIONARY DESIGN CHANGE NOTICE

NON-DISCRETIONARY DESIGN CHANGE NOTICE





CONTINUED FROM FLOWCHART DCN-1

SEE FLOWCHART DCN-3

FLOWCHART DCN-2

APPENDIX 1 SHEET 3 OF 3 DESIGN CHANGE CONTROL PROCEDURE - EXECUTION PHASE IMPLEMENTATION, ISSUE OF DESIGN CHANGE NOTICE

DCN FULLY APPROVED & SUPPORTING DOCUMENTATION

NO

INCREASE IN CAPEX

ES/NO

CHANGE TO PROJECT MASTER SCHEDULE

YES

CONTINUED

YES

COST GROUP ISSUE TREND NOTICE

FROM

FLOWCHART DCN-2

DRAWINGS / DOCUMENTS

DRAWINGS / DOCUMENTS

NO

ES/NO

PLANNING GROUP ISSUE A CHANGE NOTICE

DOCUMENT

APPENDIX 1 SHEET 3 OF 3 DESIGN CHANGE CONTROL PROCEDURE - EXECUTION PHASE IMPLEMENTATION, ISSUE OF DESIGN CHANGE NOTICE

DCN FULLY APPROVED & SUPPORTING DOCUMENTATION

NO

INCREASE IN CAPEX

ES/NO

CHANGE TO PROJECT MASTER SCHEDULE

YES

CONTINUED

YES

COST GROUP ISSUE TREND NOTICE

FROM

FLOWCHART DCN-2

DRAWINGS / DOCUMENTS ISSUED TO RELEVANT PARTIES

DRAWINGS / DOCUMENTS REVISED AND APPROVED

PLANNING GROUP ISSUE A CHANGE NOTICE

DOCUMENT CONTROL COMPLETE DISTRIBUTION

FLOWCHART DCN-3

XXX PROJECT DESIGN CHANGE NOTICE TYPE

ORIGINATING GROUP: DISCRETIONARY

DCN No. DATE :

NON DISCRETIONARY

AUTHOR: TITLE REASON FOR CHANGE

CHANGE DESCRIPTION ( ATTACH SKETCH/DRG)

NO

ES/NO

REV :

XXX PROJECT DESIGN CHANGE NOTICE TYPE

DCN No.

ORIGINATING GROUP: DISCRETIONARY

DATE :

NON DISCRETIONARY

REV :

AUTHOR: TITLE REASON FOR CHANGE

CHANGE DESCRIPTION ( ATTACH SKETCH/DRG)

OTHER GROUPS AFFECTED T/S PROCESS

T/S NSTALLATION

FLOWLINES

DRILLING

T/S LAYOUT T/S STRUCTURAL

T/S E&I DESIGN

RISERS

T/S MECHANICAL T/S ELECTRICAL

T/S DRILLING W/H DESIGN W/H FOUNDATIONS

CALM BUOY EXPORT PIPELINE MATERIALS/SPECS

RESERVOIR OPERATIONS

T/S INSTRUMENTS T/S SAFETY/ENV

W/H NAVAL ARCHITECT W/H MECH/INST/SYST

T/S HVAC T/S WEIGHT CONTROL T/S FABRICATION

W/H FABRICATION W/H INSTALLATION TEMPLATE/TIE BACK

APPROVALS (AS APPROPRIATE) SUBSEA DATE:

APPROVED TOPSIDES

DRILLING

DATE:

MARINE DATE:

OPERATIONS

DATE:

CALM BUOY

PIPELINE

DATE:

SHEA

STRUCTURE

DATE:

RESERVOIR

CII INFRASTRUCTURE MANAGER:

Distribution Copies :

MIGAS PERMITS/GOVNT

REJECTED

DATE:

DATE:

DATE: DATE:

DATE:

Original Document Control Page 1 of 2


DCN No.

DATE :

REV :

ITEMS IMPACTED : FLOW DIAGRAMS

GENERAL ARRANGEMENT

ELECTRICAL DRAWING

MATERIAL TAKE OFF

P&ID’s

STRUCTURAL

SPECIFICATIONS

MATERIAL REQUISITION

PFD’s

ISOMETRICS

PLANS

PURCHASE ORDERS

ELECTRICAL OLD’s

INSTRUMENT DRGS

PROCEDURES

VENDOR DOCUMENTS

NOTES:

IMPACT ON: Tick appropriate box and provide brief summary. Detailed impact to be provided as an attachment

WEIGHT

FABRICATION

INTERFACES

INSTALLATION

REGULATORY COMPLIANCE

PROCUREMENT

RELIABILITY/SAFETY

OPERATIONS

COST (Life Cycle Analysis)

SCHEDULE

CHANGE IN CRITICALITY RATINGS REFERENCES (Use separate sheet if required)

ATTACHMENTS (Use separate sheet if required)

IMPLEMENTATION PLAN

Page 2 of 2


XXX PROJECT DCN COST ESTIMATE FORM DCN No.

DATE :

GROUP:

REV :

SECTION:

PAGE REV: DATE:

DESCRIPTION:

OF

$ ITEM

DESCRIPTION

UNIT

QUANTITY

TOTAL BASIS OF ESTIMATE:


RATE

COST

CONOCO PHILLIPS Spec

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