PR-1172 - Permit to Work Procedure

(1)

Petroleum Development Oman

L.L.C.

Permit to Work System

Document ID PR-1172

Document Type Procedure

Security Unrestricted

Discipline Engineering and Operations

Owner UOP – Functional Operations Manager

Issue Date October 2014

(2)

This page was intentionally left blank

This document is the property of Petroleum 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.

(3)

i

Document Authorisation

Authorised For Issue – June 2011

(4)

ii Revision History

The following is a brief summary of the 4 most recent revisions to this document. Details of all revisions prior to these are held on file by the issuing department.

Revision

No. Date Author Scope / Remarks

8.1 Oct-14 Philip Hatherton UOP61 Revision to incorporate minor amendments

8.0 June-11 Del Ellbec UOP/7 Incorporating further enhancements, Interim Amendments, and user feedback

7.0 April-10 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

iii Related Business Processes

Code Business Process (EPBM 4.0)

EP 72 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

(5)

TABLES AND FIGURES

Figure 3.1 – No Permit Job... 25

Table 4.1 – Work Site Examination Requirements...26

Table 5.2 - Roles that May be Carried out by Licensed Personnel...32

Table 5.3 - Roles that can be filled by Any One Person on a Single Permit...33

Figure 6.1 – Permit Life Cycle...35

Figure 11.1 – Job HSE Plan Process...68

Figure 11.2 – Job HSE Plan (Example)...69

Figure 11.3 – TRIC... 70

Table 12.1: PTW Training and Licensing Requirements...71

Figure 12.1 - Knowledge and Competence for Permit Activities...72

Figure 12.2 - Licence Application / Notification...77

Table 13.1: Audit Structure... 80

Table 14.1 Proposals for Change to the Permit to Work System...91

INTERIM AMENDMENTS

Interim Amendment – IA1011_01...133

(10)

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 Ministerial Decision 286/ (2008) – 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

(11)

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. It also states how Permits are approved and 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.

Coordination: To prevent conflicting activities from 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: TRIC discussions at the worksite to discuss the job, how it will be done, and the precautions required.

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. Page 11 _{PR-1172 – Permit to Work System} Printed 11/01/16

(12)

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:

Understands: The work content and how it will be done.

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

Complies: With all the requirements of the Permit to ensure the continued safety of personnel, plant and equipment.

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 Manager 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 re-verification 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)

(13)

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

Note: All affected personnel shall read this procedure. If they do not understand something within the procedure they shall ask their line supervisor or The Operating Integrity Coordinator (Interior) to explain it. It is the line Supervisor’s Responsibility to ensure that all his subordinates have read and understood this procedure. When the procedure is read and understood they shall sign the Record of Procedure Understanding Form.

2.2.1 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, 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.  To provide training to PTW Focal Points.

 “Helpdesk” support.

 Implementation support and system maintenance.

 Ensure that the Record of Procedure Understanding Form is correctly completed and retained in a central location within each area.

2.2.2 OXO/2

The responsibility of the OXO/2 position is:

(14)

 Provide Audit support

 Provide support for field implementation

 Ensure all technicians under his supervision read and understand the procedures and sign the Record of Procedure Understanding Form

2.2.2 Delivery Team Leader

The responsibility of the Delivery Team Leader (DTL) position is:  To initiate Area Audit programs

 Provide Implementation support

 Ensure compliance with the PTW system in their area of operation

2.2.4 HSE Mandated Training Focal Point

The responsibilities of the HSE Training Focal Point are:  To manage QA/QC for PTW training.

 To manage the Contractual issues around PTW Training

2.2.5 PTW Training Custodian

The responsibilities of the PTW Training Custodian are:

 To define the requirements for PTW Training Courses and their content.  To maintain the required standard of course delivery.

2.2.6 PTW Coordinators

The responsibilities of the PTW Coordinator within each area are:

 To carry out worksite audits, inspections and coaching for the PTW system  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.

 To ensure Process Isolations are correctly managed from a central facility where a Process Isolation Wall has been established.

 To check the quality of permit applications prior to sending to the Responsible Supervisor.

2.2.7 Maintenance Staff

The responsibilities of the Maintenance Staff within each area are:  Comply with this procedure

 Ensure the procedures are read and understood and they sign the Record of Procedure Understanding Form

(15)

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 Permit. 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":

(16)

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. 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

3.1.2 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.

(17)

3.2 Types of Permit

3.2.1 Class A - Red Edged Permits

Class A Permits (refer to Appendix 1) 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.

 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.

3.2.2 Class B - Blue Edged Permits

Class B Permits (refer to Appendix 2) are required for medium risk work. Class B Permits require:

 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.

3.2.3 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:

 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.

(18)

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, the 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 hydrocarbon production or DWD 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:

 Areas outside Process Facilities, but within 50m of the boundary fence. The exception to this is the area outside of a Water Injection Manifold area which is fenced. Although inside the fence is a Process area, the area outside the fence can be treated as per Section 3.3.4 below – Non Hydrocarbon Areas.

 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 GU501 -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

3.3.3 Critical Sour Area

(19)

3.3.4 Non Hydrocarbon Areas

These are areas where hydrocarbons have never been present. They include:

 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.

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 non-hazardous 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 3.5.4 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 3.5.5 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 3.6 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 6) may be used. A Responsible Supervisor may sometimes require a Permit to Work for activities that would not normally require it, in order to ensure safe working.

(20)

3.5 Gas Test Frequency

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

3.5.3 Testing for Hot Work

The Table in 3.5.4 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 or operating equipment that may cause flames or sparks done in Process Facilities where significant quantities of gas are present.

(21)

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 Hydrocarbon Area 1. Burning, Welding and Grinding

1.1 Welding (Gas) / Oxy-Acetylene cutting (Hot Work) +



Continuous monitoring  1.2 Welding (Arc) (Hot Work) (See 15.6.1) _₊



Continuous monitoring 

1.3 Grinding (Hot Work) +



Continuous monitoring  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)

+ Continuous

monitoring + Continuousmonitoring 2.2 Entry into Well Cellars (See 15.6.3) and Casasco Pits

(See 15.5.2)  

2.3 Entry into Well Cellars or Casasco pits by Area Authority to carry out Operational Tasks to an approved procedure.

+ Continuous monitoring 3. Electrical Work and Work in Electrical Areas (See

Section 15.9)

3.1 Work requiring an electrical safety document as specified in Electrical Safety Rules (ESRs)

3.2 The opening of live electrical junction boxes by

Electrical Authorised Persons 

4. Handling Hazardous Substances

4.1 Handling substances hazardous to health, e.g. toxic chemicals or asbestos

4.2 Use of Radioactive sources (See 15.6.8)

4.3 Contamination with Naturally Occurring Radiation Material (NORM)

4.4 Working with Pyrophoric Scale (except for scale

encountered during pigging operations)   

5. Work on Safety Systems (See 15.6.1)

5.1 Work that affects the availability of ESD & F&G

Systems N/A

5.2 Work that affects the availability of Process and

Machinery control systems N/A

6. Mechanical Maintenance Activities (See Section 15.6) 6.1 Work that involves cold cutting pipe on systems

containing hydrocarbons or hazardous fluids  + Continuousmonitoring 6.2 Work that involves unbolting flanges on systems

containing hydrocarbons or hazardous fluids

6.3 Grit Blasting (Hot Work)  

6.4 Power/hand tools (except grinders) that may create a

spark between surface and tool  Continuous_monitoring 6.5 High Pressure (HP) water jetting

(22)

Activity. Location of Work 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.

6.8 Work in authorised workshops located in non-hazardous areas.

6.9 Leak clamping of oil/gas flowlines

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) _ + Continuousmonitoring

6.13 Suction tanker operations inside a process area. (See

15.6.6 + Continuousmonitoring

6.14 Engineering and routine/corrective maintenance work which involves the use of lifting equipment

7. Work at Height

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

8. 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 Gas testing

requirements for any diesel engine used is 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)

+



Continuous monitoring  11.2 Use of non-Intrinsically Safe equipment  Continuous

monitoring  11.3 Use of Intrinsically Safe test / portable equipment

11.4 Use of cameras. Providing a gas detector is carried by an individual who has been briefed in its use, and is able to demonstrate an understanding of the detector operation and actions to be taken on alarm activation. Flash requirements to be included on the access authorisation form

 Continuous monitoring

11.5 Mobile diesel powered cleaning units used only by Area Authority for external cleaning of water injection plant, equipment and pipework.

+ Continuous monitoring 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

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

(23)

Activity. 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)

N/A Hydrocarbon Area requirements may apply

See 3.3.2

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.

Use Pigging

Authorisation Form Use Pigging AuthorisationForm

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. See Section 15.7

13.9 Government Gas Operations. See Section 15.8

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.

+ Continuous monitoring

+ Continuous monitoring 13.12 Sampling of Process fluids where the fluids are classed

as sweet, and the sampling is carried out using approved Production Chemistry procedures.

+ Continuous monitoring 13.13 Use of Flushby Unit following dedicated contractors

procedures approved by PDO. See Section 15.12 13.14 Use of Flare Ignition Gun by authorised Operations

Personnel, providing Operating Procedure PR-1097 is being followed, the user is an AGT, and a gas test is carried out

+ Continuous monitoring 14. Inspection Work

14.1 Entry to Restricted Areas, for viewing purposes only, by personnel not on the access list for that Area.

No Permit Required. Use Access authorisation

Form

N/A 15. Roadway Work

15.1 Levelling and grading using machinery Use No Permit Job Form

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)

Non Hazardous Area 17.1 Meggar Testing HV – See E1.1 Intrinsically safe

Equipment to be used No Permit Required.Controlled by ESR’s

17.2 Replacing Pig Tail at Wellhead (Isolated) N/A

17.3 Fluid Shot N/A

17.4 Electrical Isolation - HV Activity Controlled by ESRs

17.5 Commissioning ESP, ESPCP & PCP (Will require gas test if breaking hydrocarbon envelope)

17.6 Trouble shooting ESP, ESPCP, & PCP (Controlled under ESRs. See E1.1 No Permit Job to be signed by Electrical Supervisor)

No Permit Required. Controlled by ESR’s

(24)

Activity. Location of Work 17.7 ESP Powered by Generator (Controlled by ESRs See

E1.1)

No Permit Required. Controlled by ESR’s 3.5.5 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)

Non Hazardous Area E1. Work in Electrical Installations (See Section15.8)

E1.1 Work requiring an electrical safety document as specified in Electrical Safety Rules (ESRs) (Activity 3.1)

 No Permit Required._{Controlled by ESR’s}

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 3.5.4)



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. Use Limitation of

Access (LOA)

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 

No Permit Required. Use Limitation of

Access (LOA)

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.

 No Permit Required._{Controlled by ESR’s}

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.

(25)

3.6 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 is Camp Services or PDO airports. 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 HSE Plans shall be 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 PDO, approved 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 PDO, approved 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.

(26)

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 6. Is the work within Emergency Planning Zone of a Critical Sour Area 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: Review Date:

Approved: Approved:

NO PERMIT JOB can only start when the above have been completed and signed by all parties

(27)

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 _{Permit Applicant &}Examination by 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 Coordinator, and following a documented 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 Area Authority however, must continue to carry out regular worksite visits during the ongoing activity.

An exception to the requirement for an Area Authority 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:

 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 Supervisor, and Production Coordinator. 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.

(28)

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 10. 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.

(29)

5 Responsibilities of Persons Signing Permits

5.1 People who Sign the Permit Documents

Below is listed the licensed roles in the PTW System Permit Applicant  Permit Applicant

 Permit Holder

 Production Coordinator  Responsible Supervisor  Area Authority

 Other Affected Custodian  Authorised Gas Tester  Isolation Authority

Normally, four different people will fulfil the roles of Permit Applicant, Responsible Supervisor, Area Authority and Permit Holder. On some occasions (e.g. urgent breakdown repairs, or specialised activities) when it is difficult to provide four people, certain people may fulfil two roles. See Section 5.11.

The responsibilities of each role are described in the paragraphs below.

5.2 Permit Applicant

For a new Permit the Permit Applicant must:

 Using Checklist 1 (Appendix 12) 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.

 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. He would normally do this using the PTW Tracking System.

(30)

Information on the roles that a licensed Permit Applicant can fulfil is contained in 5.8.

5.3 Production Coordinator

The Production Coordinator 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 Coordination 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 PTW 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.

(31)

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.

 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 that hold a higher level of risk, and certainly for any breaking containment issues.

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 5.10.

5.6 Permit Coordinator

The Permit Coordinator is responsible for:

 Reviewing permit applications before presentation to the Responsible Supervisor to ensure the permit is completed correctly.

 Safety Coordination of activities through the use of the Permit Control Facility where appropriate.

 Carrying out site inspections and coaching exercises with permit users.

5.7 The Permit Holder

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

 Understand the work content and the requirements of the Job HSE Plan.

 Hold a TRIC discussion where he discusses with the work party the content and the requirements of the job and 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.

(32)

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 and communication 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 is contained in 5.10.

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.

(33)

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

An Isolation Authority is a licensed position for person who is authorized to isolate flowlines at remote sites, following the required practice and procedures. The isolation requires to be carried out in accordance with section 7, and documented using the form in Appendix 4.

5.11 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



Responsible_Supervisor 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 breakdown situations, or for specialist3 _{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.

(34)

Table 5.3 - Roles that can be filled by Any One Person on a Single Permit

May act as



Responsible_Supervisor Area Authority Permit_Applicant Permit Holder Licensed as



Responsible

Supervisor Yes (See Note 1)Yes No No

Area Authority No Yes Yes

(See Note 2) No

Permit Applicant No No Yes

(See Note 3) Yes

Permit Holder No No No Yes

NOTES:

1. In extremely urgent cases 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 extremely urgent cases or 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.

(35)

6 How the Permit to Work System Operates

6.1 The Permit Forms

6.1.1 Class A Permit to Work

An example of the Class A Permit is shown in Appendix 1. Class A Permits have RED edge colour.

The Permit comprise of an:

Original Worksite Copy (PINK)

1st Copy- Permit Issue Point Copy (GREEN) Information Copy- Responsible Supervisor’s Copy (WHITE)

A Class A Permit shall be used for work as detailed in Section 3.5.4. and can be authorised for a maximum of 14 days, with Validation required each working day. In certain circumstances a Class A permit can be extended for up to 7 days

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 Copy- Responsible Supervisor’s Copy (WHITE)

A Class B Permit shall be used for work as detailed in 3.5.4. and can be authorised for a maximum of 14 days, with Validation required each working day. In certain circumstances a Class B permit can be extended for up to 7 days

PR-1172 - Permit to Work Procedure

Petroleum Development Oman

L.L.C.

Permit to Work System

i

Document Authorisation

Authorised For Issue – June 2011

ii Revision History

iii Related Business Processes

iv Related Corporate Management Frame Work (CMF) Documents

TABLE OF CONTENTS

TABLES AND FIGURES

INTERIM AMENDMENTS

Executive Summary

1 PDO Permit to Work System

1.1 Scope

1.2 Objectives

1.3 Changes to the Document

1.4 Step-out Approval

2 Management of the Permit to Work System

2.1 System Custodian and Focal Points

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

3 Work That Needs a Permit to Work

3.1 What is a Permit to Work system?

3.2 Types of Permit

3.3 Location of Work

3.4 Activities Requiring a Permit

3.5 Gas Test Frequency

3.6 Work in Other Areas under the Control of PDO

3.7 Other Work

3.8 Work in Areas Not Under the Control of PDO

NO PERMIT JOB

Work Site Supervisor

Responsible Supervisor

4 Worksite Examination and Restrictions on Permit Work

4.1 Worksite Examination Requirements

4.2 Restrictions on Hot Work in Hazardous Zones

4.3 Limits on the Amount of Work under an Area Authority

5 Responsibilities of Persons Signing Permits

5.1 People who Sign the Permit Documents

5.2 Permit Applicant

5.3 Production Coordinator

5.4 Responsible Supervisor

5.5 Area Authority

5.6 Permit Coordinator

5.7 The Permit Holder

5.8 Other Affected Custodian

5.9 Gas Tester

5.10 Isolation Authority

5.11 PTW Multi-Roles (Licensed Personnel)







6 How the Permit to Work System Operates

6.1 The Permit Forms

Remainder of this Page Left Blank Intentionally