iog 115-use of spades and blinds

SHELL EXPLORATION AND PRODUCTION COMPANIES IN NIGERIA [SEPCIN]

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APPROVAL REGISTERAPPROVAL REGISTERAPPROVAL REGISTERAPPROVAL REGISTER

DOCUMENT NUMBER: IOG 115

TITLE: USE OF SPADES AND BLUSE OF SPADES AND BLUSE OF SPADES AND BLUSE OF SPADES AND BLINDSINDSINDSINDS

DOCUMENT OWNER: UIG/P/CB

SECURITY: NON CONFIDENTIAL

Document History:

Revision Revision Revision Revision Date Date Date Date Pages Pages Pages Pages Reason Reason Reason Reason

3 Oct t 2010 All 3 Yearly Review

2 May 2006 All 3 Yearly Review

1 April 2003 All Reviewed and Work Practice

updated.

0 July 1999 All Initial Publication


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Doc No :IOG:115 Rev: 3 Issues: 19/10/2010

Doc Owner: UIG/P/C Custodian: UIG/P/CB Review: 19/10/2013

Page 2 of 10 Printed copies are uncontrolled

Table of ContentTable of ContentTable of ContentTable of Content

1.0 PURPOSE ..................................................................................................................................... 3

2.0 SCOPE ........................................................................................................................................ 3

3.0 HEALTH SAFETY AND ENVIRONMENT ..................................................................................... 3

4.0 PROCEDURE ................................................................................................................................ 3

4.1 GENERAL .......................................................................................................... 3

4.2 SPADING/BLINDING ACTIVITIES ......................................................................... 4

5.0 LIST OF APPENDICES .................................................................................................................. 5

6.0 RELATED DOCUMENTS/REFERENCES .................................................................................... 10


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1.0 1.0 1.0 1.0 PURPOSEPURPOSEPURPOSEPURPOSE

This procedure provides the details for the use of spectacle or spade type blinds and the administration control associated with the application.

2.0 2.0 2.0 2.0 SCOPE SCOPE SCOPE SCOPE

This procedure details the reasons for the insertion of spectacle or spade type blinds and all the precautions and operations associated with them.

3.0 3.0 3.0 3.0 HHHHEALTH SAFETY AND ENVIRONMENTEALTH SAFETY AND ENVIRONMENTEALTH SAFETY AND ENVIRONMENTEALTH SAFETY AND ENVIRONMENT

Wear personal protective equipment (PPE) such as coveralls, safety boots, safety helmet, etc. as specified in SPDC Safety Manual.

Avoid hydrocarbon spillage to the environment and emission to air in accordance with ISO 14001 standards.

Report any potential threat to the environment to the Asset Holders Site Representative and act on instructions in accordance with the HSE-MS policy

4.0 4.0 4.0 4.0 PROCEDUREPROCEDUREPROCEDUREPROCEDURE

4.14.14.14.1 GENERALGENERALGENERALGENERAL 1. Positive isolation of equipment shall be in accordance with IOG 137

Procedure for Preparation of Equipment for Work Activity. This is by either breaking pipelines to and from an item of equipment (e.g. removal of a valve in a line) or by inserting a spectacle or spade type blind between a pair of flanges on a pipeline.

2. The spectacle or spade blind used for isolation must conform in rating (in accordance with DEP 30.38.01.11-Gen. Section 8. Piping Components) to the pipe or flange classification to which it is to be fitted. This is also the case for blind flanges that may be fitted. This shall apply whether it is a permanent or temporary one.

3. In the case of removing a valve, a blind flange should be fitted to both open ends of the pipeline.

4. In the case of open drain systems, the spectacle or spade blind should be installed on the downstream side of the drain valve for all permanent vessel


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drain connections.

5. Closed drain systems with a double block and bleed arrangement shall have the blind installed on the upstream side of the last valve used.

6. In all other cases, isolating spectacle or spade type blinds shall be installed on the equipment side of isolation valves, so that the individual item can be positively isolated from the process.

4.24.24.24.2 SPADING/BLINDING ACTIVITIESSPADING/BLINDING ACTIVITIESSPADING/BLINDING ACTIVITIESSPADING/BLINDING ACTIVITIES

1. Blinding of process equipment (vessels, columns, pipelines, flowlines, etc.) shall be done under a Permit to Work system.

2. All equipment and pipings must be depressurised to 0 barg (atmospheric) and drained before any line breaking or insertion of spectacle or spade type blinds takes place.

3. A checklist of the status of all spectacle and spade type blinds will be maintained and kept up to date and maintained in the facility check list register (appendix 2) by the Site Operator.

4. Any change to the normal blind position shall be recorded in the blind checklist. The authourisation shall be given by the Asset Holder Site Supervisor using the form in appendix 1.

5. The Site Operator shall check the actual valve status of the blinds every two weeks (14days)

6. The Asset Holders Site Representative shall audit the blind check list status under his control every six months using the checklist in appendix 2 to ensure that the check list is up to date, and confirm that the actual position of the blinds are correct on site.


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5555.0.0.0.0 LIST OF APPENDICESLIST OF APPENDICESLIST OF APPENDICESLIST OF APPENDICES

Appendix 1Appendix 1Appendix 1Appendix 1: : : : Approval for change in blind status

BLIND BLIND BLIND BLIND No No No No

LINE LINE LINE LINE No No No No

SIZE SIZE SIZE SIZE and and and and

CLASS CLASS CLASS CLASS

PEFS NoPEFS NoPEFS NoPEFS No PTW PTW PTW PTW No No No No

BLINDBLINDBLINDBLIND----IN IN IN IN BLINDBLINDBLINDBLIND----OUT OUT OUT OUT

DateDateDateDate Name of Name of Name of Name of PersonnelPersonnelPersonnelPersonnel

AuthorisedAuthorisedAuthorisedAuthorised by AHSSby AHSSby AHSSby AHSS

DateDateDateDate Name of Name of Name of Name of PersonnelPersonnelPersonnelPersonnel

ConfirmedConfirmedConfirmedConfirmed By By By By AHSSAHSSAHSSAHSS


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Appendix 2Appendix 2Appendix 2Appendix 2: Facility blind checklist

Drawing Drawing Drawing Drawing NumberNumberNumberNumber Line NoLine NoLine NoLine No

Size & Size & Size & Size & ClassClassClassClass LocationLocationLocationLocation ReasonReasonReasonReason

Date

Installed

I have personally completed the blind checks and confirm the status is as noted above:I have personally completed the blind checks and confirm the status is as noted above:I have personally completed the blind checks and confirm the status is as noted above:I have personally completed the blind checks and confirm the status is as noted above:

NameNameNameName:__________________________________________________

Signed:_________________________________________________Signed:_________________________________________________Signed:_________________________________________________Signed:_________________________________________________

DateDateDateDate:___________________________________________________

CommentsCommentsCommentsComments:


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Appendix Appendix Appendix Appendix 3333: Example of spades/blinds & colour codes

Appendix 3Appendix 3Appendix 3Appendix 3.1.1.1.1: Spectacle blinds

Appendix 3Appendix 3Appendix 3Appendix 3.2.2.2.2:::: Raised face blind


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Appendix 3.3Appendix 3.3Appendix 3.3Appendix 3.3:::: . Audit Checksheet

Guidelines for Completing Audit Check sheetGuidelines for Completing Audit Check sheetGuidelines for Completing Audit Check sheetGuidelines for Completing Audit Check sheet

(1) Select an activity to be audited relevant to the document. (2) Review activity for actions/procedures, which are covered by the document. (3) Audit `as-found' condition/performance against requirements identified in document. (4) Note whether `as-found' is acceptable, highlighting areas of non-compliance. (5) Report audit findings to Line Management, identifying any remedial actions required, along

with action plan. Audit Check SheetAudit Check SheetAudit Check SheetAudit Check Sheet

Auditors:Auditors:Auditors:Auditors: Check Sheet Custodian: UIG/P/CBCheck Sheet Custodian: UIG/P/CBCheck Sheet Custodian: UIG/P/CBCheck Sheet Custodian: UIG/P/CB

Date of Audit:Date of Audit:Date of Audit:Date of Audit:

Type:

Ref:

Objective

Evidence Acceptable? Remarks

YYYY NNNN YYYY NNNN

Is blinding of process equipment

(vessels, columns, pipelines, flowlines,

etc.) done under a Permit to Work

system?

4.2

Is a checklist of the status of all spectacle or spade type blinds maintained and kept up to date in the facility register by the Asset Holders Site Representative.

4.2

Is any change to the normal blind

position recorded in the blind

checklist together with the authorisation

(Name and Reference Indicator) for the

change and the number of the permit

(if applicable)?

4.2

Does the Site Operator check the actual valve status of the blinds every

4.2


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two weeks (14days)? Does the Asset Holders Site

Representative audit the blind check list

status under his control every six

months to ensure that the check list is

up to date, and confirm that the actual

position of the blinds are correct on

site.

4.2

In the case of removing a valve, is a

blind flange fitted to both open ends of

the pipeline?

4.1

DefinitionsDefinitionsDefinitionsDefinitions

Objective EvidenceObjective EvidenceObjective EvidenceObjective Evidence: Includes data, records etc that shows or proves compliance to the requirements.

Acceptable:Acceptable:Acceptable:Acceptable: Indicates that evidence meets the required standard or judged to be in conformity with the

standard.


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6.06.06.06.0 RELATED DOCUMENTS/REFERENCESRELATED DOCUMENTS/REFERENCESRELATED DOCUMENTS/REFERENCESRELATED DOCUMENTS/REFERENCES

Permit to Work Procedure SEPCiN- HX -2010-0003

SPDC IOG/137 Preparation of Equipment for Work Activity

DEP 30.38.01.11-Gen. SECTION 8. Piping Components.

iog 115-use of spades and blinds

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