verification scheme

8/11/2019 Verification Scheme

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MANAGING MAJOR HAZARD RISKS

Nexen Verif ication Scheme

Andy Robertson Process Safety / Asset Integrity Manager

10 June 2010


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2

Verification Scheme - Scope

NEXEN VERIFICATION SCHEME

(extract HSE KP3)

Safety Case (MAH)

Safety Critical Elements

Performance Standards

Specified Plant

Maintenance Assurance activities (including SAP)

Supporting processes e.g. Deferment, SCEF, NOPRAS

Written Scheme of Examination(s)


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MAH

Safety Case

Safety Critical

Elements

Performance

Standards

Assurance

Specified

Plant

Strategies


Verification Whats in it for me?

Will the Safety Critical Element

work when required?
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MAH

Safety Case

Safety Critical

Elements

Performance

Standards

Assurance

Specified

Plant

Strategies


Verification

Verification Whats in it for me?
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Performance Standards - Ownership

Separate Performance Standard for each SCE

Each Performance Standard has owner (Tech Authority)


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Typical

Performance

Criteria

Performance Standards Performance Criteria



7/22

Performance

criteriatransposed to

work

instructions in

SAP


Performance Standards Link to SC PMRs


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Performance criteria takenfrom the Performance

Standard.

The Standard Text is

identified within the

Performance Standard

The activity is against the

particular criteria with the


Clear instructions to Technician


Assurance Routines Standard Text


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Specified Plant Information in SAP


referencesMAH Barrier reference

Hyperlink to

Performance

Standard


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Safety Critical Equipment Failure Process

All works orders are assessed and

given a planning date which

indicates when they will be

executed, work orders not ready for

any reason are given a

responsibility code that reflects an

owner and what resource isrequired to full fill the work order



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DetectionS

ystems

Protection

Systems

LifeSavin

g

ShutdownS

ystems

EmergencyRespons

e

ProcessCo

ntainment

Ignition

Control

Structural

Integrity

Hazard

AccidentProtectiveBarriersselected

formonitoringpilot

Prevention

Recovery

MAH Barrier Performance Indicator

Safety

Critical

Barriers

BARRIER TRAFFIC

LIGHT SYSTEM

Control/M

itigation



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Development History

1 January to March are Dummy Data for Testing

2 Preliminary data collected for 3 barriers in April 2009

3 Data refinement in May 2009 for all 8 barriers above

EARLY WARNING (MAY 2009)

4 Execessive N720 jobs & Inspection activities backlog.

5 Maintenance deferrals need to be reduced.

6 Verification overdue (Level 2) need to be reduced.

7 Number of NOPRAS to be addressed.

8 Competency requirements need to be addressed.

9 HSE Audits on suppliers need to be addressed

10 F&G detectors inhibits need to be reduced.

Primary Barriers (55% Contribution) Secondary Barriers (35% Contribution) Teritority Barriers (10% Contribution)

Overall Buzzard MAH Barrier's Traffic

Light Status - May 2009

0%

10%

20%

30%

40%

50%

60%

70%

Red Amber - High Amber - Low Green

Structural Integrity (5%)

Process Containment (30%) Iginition Control (20%) Detection system (15%) Protection System (10%) Shutdown System (10%) Emergency Response (5%) Life Saving (5%)

Primary Barriers Secondary Barriers Tertiary Barriers

Annual MAH Barrier's

KPI Overview

0%

10%

20%

30%

40%

50%

60%

70%

Jan-

09

Feb-

09

Mar-

09

Apr-09 May-

09

Jun-

09

Jul-09 Aug-

09

Sep-

09

Oct-09 Nov-

09

Dec-

09

Structural Integrity (5%)

MAH Management Report (dummy data)

Prevention Barriers (55%) Mitigation Barriers (35%) Recovery Barriers (10%)

Process

Containment

(30%)

Protection

Systems

(10%)

Emergency

Response

(5%)

Current months status Trends High level statements

Life

Saving

(5%)

Structural

Integrity

(5%)

Ignition

Control

(20%)

Detection

System

(15%)

Shutdown

system

(10%)



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13

Verification Process ICP

Nature and frequency (sampling) of ICP activities are

based on criticality and redundancy of equipment

Independent Competent Person:

Full access to our UKMS and CMMS (e.g. PMR history SAP)

Give clear statements on initial and continued suitability

Findings clearly link back to the Performance Standards

Planning and Communication:

Resident in our office (at least 2 days per week)

Pre and post ICP offshore inspections

Monthly updates and quarterly suitability review meetings

Review and formally comment on the Verification scheme



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Scheme Management Suitability Matrix

Note: this is dummy data

(text that

supports /explains the

traffic light

colour is stated

here by the ICP)


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Integration within UK Management System

Note: screenshot from Nexen UKMS


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19

Scheme Management

Annual Management Review:

Is Verification Process robust?

Reporting:

Findings tracked and presented at monthly management meeting

Asset managers have responsibility for explaining trends Internal and external (e.g. to OGUK) information is the same

Lessons learned:

Technical Authorities common to operated assets

Audits

Suitability matrix (traffic light per SCE)



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20

Operations Director

Field Operations Managers

Tier 1 - Annual Verification Management Review -

ICP / Operations Director / Management Team review

past years performance

Tier 2 Quarterly Meeting -

Operations Director / Management Team review

past quarters performance

Tier 3 Monthly Review -

Field Managers discuss past months

findings performance with Dept managers

Tier 4 Monthly Review -Dept Managers discuss past months

findings performance with actionees.

OMT

Department Managers


Scheme Management Tiered Approach


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Summary

Scheme provides clarity over roles, responsibilities and

accountabilities

Scheme has active involvement and support from Senior

Management

Scheme is fully aligned across the operated assets

Scheme ensures early planning, with offshore involvement

Scheme contains audit and management reviewrequirements

Tools and processes in place to actively manage

Verification and Assurance activities



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22

Questions


verification scheme

Documents