DRILL FLOOR SAFETY
best practice guide to manriding safety
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List of Applicable UK Legislation 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
HASAWA 1974 (Application outside Great Britain) Order SI 1995 No. 263 Health and Safety Information for Employees Regulations, SI 1989 No. 682 The Supply of Machinery (Safety) Regulations, SI 1992 No. 3073 Offshore Installations (Safety Case) Regulations 1992, (SI 1992/ 2885) The Personal Protective Equipment (EC Directive) Regulations, SI 1992No. 3139 The Personal Protective Equipment at Work Regulations, SI 1992 No. 2966 The Manual Handling Operations Regulations, SI 1992 No. 2793 Management and Administration Regulations 1995, (SI 1995/ 738) The Health and Safety (Signs and Signals) Regulations, SI 1996 No. 341 The Health and Safety (Signs and Signals) Regulations, SI 1998 No. 341 The Provision and Useof Work Equipment Regulations, SI 1998 No. 2306 The Lifting Operations and Lifting Equipment Regulations, SI 1998 No. 2307 Management of Health and Safety at Work Regulations, SI 1999 No. 3242
Contents Introduction Top 10 Alternatives for Manriding Training and Competence Manriding Hand Signals - Harmonisation Manriding Competence Task List Pre-Manriding Checklist Manriding Equipment Emergency Plans and Equipment Manriding Register Participating Companies
page 3 page 4 page 6 page 7 page 10 page 12 page 13 page 14 page 15 page 17
Introduction In an effort to reduceaccidents associated with manriding operations, in January 2001the STEP CHANGE IN SAFETY Manriding Safety Workgroup was formed. Theobjectivewas to publish current best practice information for manriding in derricks, masts and moonpools in one document. This guide is a cross industry product and a list of participating companies is given at the end of this guide, it also contains many of the posters issued throughout the campaign. Many of the participating companies are international, and although this Best PracticeGuide is intended for use in the UKCS, the group hopethat it will be used world wide.
It should always be remembered that manriding operations must be considered as the last option, non routine and subject to stringent planning and controls. Ultimately I would like all manriding operations either to be engineered out of the job, or alternatives used. Some examples of how this can be done can be seen in the results of the 2001 awards competition ‘Top 10 Replacements for Manriding’, shown opposite.
Pete Smith Chairman STEP CHANGE IN SAFETY Manriding Safety Workgroup 01/ 06/ 02
Further information/ queries pleasecontact StepChangeSupport Team, (http:/ / www.stepchangeinsafety.net)
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In February 2001 this poster was used to request input from the Industry.
Training & Competence One of the Lord Cullen's recommendations following the Piper Alpha Disaster was that, as an industry wemust be able to demonstrate the competenceof the workforce. So what is competence? Competenceis the ability to performatask to arequired standard. When aperson has the necessary knowledge, skills and ability to perform a task to the required standard, that person is deemed to be competent. Training and competence go hand in hand, you cannot have one without the other. A person cannot be deemed to be competent, unless he has been trained and/ or assessed against pre-determined criteriafor the task. Theperson oncetrained must demonstrate hecan consistently perform the task to the required standard. It is recommended that the following areas are addressed in any manriding competency program:-
Principles, Policies and Procedures · Knowledge of Applicable Legislation · Task Based Risk Assessment · Manriding Rig Specific Procedure · Permit To Work · Mechanics of Manriding Checklists and Notices · Pre-Operations Checklist · Warning Notices Environmental Assessment · Current and Continuing Assessment of Weather Conditions Pre-Job Planning · Reasons and Objectives for Manriding Operation · Toolbox Talk · Feedback · Emergency Rescue Procedures Equipment · Harness · Winch Line and Ferrule · Winch and Utility Air Supply · Other equipment made safe Safety Devices · Correct PPE, including high visibility items · Air Winch Safety Features (see page 13, Manriding Equipment) · Fall Arrester Communications · Hand signals · Radio Signals Using Tools · Safe system for tools aloft Operations Review · Post Operations Checklist · Demobilisation · Man Riding Log
Manriding Hand Signals Harmonisation Followingan extensivesurvey of theOil and Gas Industry Sector in the UK North Seain 2001 conducted by the STEP ChangeManriding Safety Workgroup, the overwhelming view of the sector was the desire to move towards a common system of hand signals for manriding operations. Therewere2 systems in common use at the timewith both theup and down signals in opposition to each other. Dueto this difference in signals, the potential for accidents was extremely high, especially with the high numbers of personnel moving from one company to another and from installation to installation. A changeto one systemof handsignals made common sense. In the replies to the survey the workgroup found good reasons for both sets of hand signals, however the popular agreement was that the manriding hand signals should where possible reflect other commonly used signals in the offshore environment, particularly crane signals. There was also a majority preference to move to the system of signals depicted in the poster opposite. As weknow, good communication is the key to success in everything that we undertake, and the bottom line is that all persons involved in amanriding operation must understand the hand signals to be used, prior to the commencement of a manriding task. The utilisation of the hand signals opposite, will help eradicate confusion and reduce the frequency of incidents.
REMEMBER, WINCH OPERATOR TO KEEP MANRIDER IN VIEW AT ALL TIMES
This poster was issued to harmonise handsignals used.
This poster was issued early on in the project to outline the important areas to consider when Manriding.
Manriding Competence Task List All persons involved in manriding operations must demonstrate abaseline of competencyprior to becoming involved in manriding operations. This Manriding Competence Task List is to support and not replace any planned or existing training you have on your installation, and is achecklist of minimumstandard. It is also important that a record of the typeof manriding equipment you have been deemed competent to use is retained on company record. Also keep a copy of this checklist for your competency profile. If the manriding equipment on your installation changes or you moveto a different installation then the competence task list will need to be re-visited. After you have consistently performed the competencies below a responsible competent supervisor who has witnessed you completing the tasks will sign the record of competency. Name
Signature
Date
Installation
Position
Competence Task List
P
1.
Carry out apre-useharness inspection to identify any damage.
2.
Carry out apre-use inspection of the manriding winch (only applicable to winch operators)
3.
Operate the manriding winch as per manufacturers instructions (only applicable to winch operators)
4
Prepare PPE and clothing to prevent dropped objects.
5.
Don the manriding harness correctly.
6.
Demonstrate handsignals for RAISE, STOP and LOWER.
7.
Demonstrate Radio commands for RAISE, STOP and LOWER
8.
Secure Handtools for safe usewhile overhead.
9.
Explain the "line of sight" working principle.
10. Complete the 'Manriding Checklist'
Equipment Record Winch Make, Model and Serial Number
/
Harness Type and Ser. Number
/ /
Responsible Person Name
Signature
Date
Sup visor/ M
Signatur
D te
N
This poster was issued to raise the awareness of Task Based Risk Assessment of Manriding Operations
Pre-Manriding Checklist REMEMBER, IF THERE IS AN ALTERNATIVE, FEASIBLE METHOD OF CARRYING OUT THE TASK, DO IT ! PRE - MANRIDIN G CHECKLIST Manriding Task: # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
Date:
All persons involved in the manriding operation are to be involved in the completion of the checklist Have the reasons for manriding and job objectives been adequately explained to you ? Have you reviewed the Risk Assessment and the Rig Specific Procedure for Manriding ? Are the current environmental conditions suitable for performing Manriding Activities ? Have you attended a pre job meeting with all the people involved ? Haveyou reviewed the emergency escape and rescue plan and examined the associated equipment ? Is aPermit to Work required, have all control measures been implemented ? Have all other planned activities that may interfere with manriding been stopped ? Have'DO NOT USE' warning signs should beplaced on thedrillers brake/ derrick ladder/ other winches/ other interfering machinery ? (machinery isolated ?) If 'over the side' working is possible has a standby boat been notified ? Hand Signals - Havethe RAISE, STOP and LOWER hand signal been agreed with the crew involved ? Has thewinch operator agreed the principle of 'NO SIGNAL NO MOVEMENT' ? If using Radios - Havethe RAISE, STOP and LOWER signals been agreed with the crew involved ? If using Radios, havethey been checked and tested, using a dedicated channel ? Is the harness, carbina/ shackle and winch line ferrule certification in date, clean and all in good condition ? Has the harness been adjusted properly, and is the manrider wearing ahelmet chin strap ? Is the winch line connected directly to the harness ? (No swivels or hooks) Is the winch marked 'MANRIDING WINCH' and is the winch certification in date ? Is the winch cable in good condition, and spooled correctly ? (min 6 turns on drum,) Where possible, have mast obstacles been tied back and checked ? Are the manual and automatic brakes operating correctly ? Does thecontrol lever operate correctly, is it clearly marked, and does it return to neutral automatically ? Hasthe emergency stop facility been tested ? If fitted, has the load limiter been overload tested ? If a fall arrestor (inertia block) is to be used, has it been tested before use, and does it havea separate means of connection to the harness? (safety hooks are not permitted) Hasthe approach route been checked, will the operator do a check each timehe lowers the manrider ? Hasthe winch operator agreed that hewill not leave the winch while theperson is manriding ? Are thehand tools of sufficient size for easy handling ? Are thehand tools tied off to the harness/ manrider securely ? Have themanrider's pockets been emptied of loose articles(especially money and other small metal objects) Has an operations review been held ? (Makecomments below) Hasthe equipment been properly demobilised ? (cleaned, inspected, records updated, correctly stored) Has the manriding register been completed ?
Comments
Signature
Compan
Date
YES
NO
Manriding Equipment If there is no alternative to manriding the following equipment should be used with the listed safety features. 1
Winch Limited maximumpull, (counter balanced system for use on floating installations) Independent secondary braking system Slack line shut-off mechanism Control lever returns to neutral (STOP), push lever away = pay out (LOWER), Pull lever = heavein (RAISE). Crown Block Sheave designed for manriding. (Fall protection for whole assembly including sheave) Emergency stop facility (unobstructed) Wire rope termination to comply with current standards Spooling device Drum guard Upper and lower travel limit switches Emergency lowering facility
2.
Harness Full body type 'D' rings for carrying hand tools Rescue or fall arrest lanyard (see 5) Safe system for tools aloft (lanyards etc)
3.
PPE In addition to normal rig PPE, wear a high visibility jacket or manrider armbands. Always fit and use a chin strap on the hard hat.
4.
Connecting Devices Must incorporate asimple locking device which can only bemanually activated Overhoist protection placed 4 ft abovemanrider, eg oversized end link
5.
Secondary Fall Arrest Equipment Usean additional safety device (where practical) attached to a safe part of the harness. (fall arrestor, inertia reel, line locker, pennant line)
6.
Radios Ensure there is a system to maintain and issue radios. When radios are appropriate for the job, establish aRadio Communication Voice Procedure :Use a dedicated channel where possible. A lways speak slowly and clearly, never talk over or interrupt. A t the end of each communication say " over" , only then is it safe for someone else to speak. N ever use the radio to have a chat with your mates. A ssign everyone a call sign and use it (winch control, manrider, driller etc) Use continuous direction commands ie, (up, up, up, up, up, / down, down, down, down/ stop, stop, stop) Remember N O COMMA N D = STOP TH E A IR WIN CH If there are long periods of silence, call for a radio check with everyone involved. If your radio stops working, contact the team by another means A SA P and get it replaced. I f you are the manrider use your hand signals to return to the rig floor.
Emergency Plans & Equipment Before any manriding operation can commence, a rescue plan must be considered as part of the pre-task risk assessment and all relevant equipment must be readily available. It must berecognized that a rescue operation can introduceits own hazards, thereforethe planning and execution of this operation requires particular care, consideration and further risk assessment before commencing.
The maximumrecommended suspension time for any individual, in harness, is twenty minutes. Any longer then this and the individual may start to lose circulation in the limbs held by the harness, this can result in discomfort andat worse, loss of consciousness. However, consideration must be given to repairing malfunctioning equipment beforeattempting arescueif the equipment can be repaired safely if the manrider is not in any immediate danger ie, if the air supply to the winch fails but can be reinstated within a short timeframe. He may then be brought to safety once the equipment is repaired.
Equipment that maybean integral part of a rig's Rescue Plan: 1. 2. 3. 4. 5. 6. 7. 8.
Harness - Full body type fitted with aD ringsuitable for rescue purposes. Alternative nitrogen or air supply to winch Secondary winch Rescue basket (for use with alternative winch) Cherry picker Fully charged radios Emergency manual lowering device on main manriding winch Emergency Descent/ Ascent device (personnel must be trained in use)
The use of emergency ascent/ descent devices, such as Spanset and Gotcha, should only be used if no other alternativecan be found. Only trained personnel should operate the devices.
As with any manriding task, during a rescue operation it is essential that, in the event circumstances change, full reassessment of conditions is conducted to ensure the continued safety of everyone involved.
Manriding Register To eliminate manriding as much as possible, a Man Riding Register can be used to document when alternatives to manriding havebeen successful. The purpose of the register is to facilitate a simple evaluation of the need to manride and to log potential alternatives. The register can also be used as a lateral learning tool for other crews/ rigs in a company.
Key components of the register:-
TASK · Identify the actual task for which manriding is perceived to be required. ALTERNATIVE METHOD · Members of the team consider and detail alternativemethods that could be utilised in place of the man-riding operation. ALTERNATIVE METHOD USED AND JUSTIFICATION · Indicate if the alternative method was used (yes or no) and detail the reasoning for non application or application of the alternative.
See example Manriding Register on page 16
(The Example Manriding Register can be downloaded as a spreadsheet from www.stepchangeinsafety.net )
D E V Y O B R P P A S ) S N I E S N E N I R M M I A T ( H
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B
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1 0 / 2 0 / 5 2
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Participating Companies & Networks Elected Safety Reps Network GlobalSantaFe Maersk Transocean KCADeutag Dolphin Drilling Tor Drilling Coflexip Coflexip Stena Noble Drilling PrideNorth Sea Diamond Offshore Halliburton Schlumberger OFS Amerada Hess Shell Expro BP Talisman IADC (North Sea Chapter) WSCA
Our thanks go to all individuals and offshore teams for thefeedback andsuggestions during thecompilation of this best practice guide.
MANRIDING IS IT THE LAST OPTION?
