BP�Pipeline�Integrity�ManagementPSA�Meeting�- Stavanger

October�2011

The�Pipeline�Integrity�Continuous�Improvement�Cycle

Standardised Risk�Management�Process

Risk Management

Risk Assessment

Threat

Identification

Probability

Estimation

Consequence

Estimation

Risk Estimation

Risk Evaluation

Review

Risk Mitigation

The�PIMS�Process

Is�a�system�of�continuous�improvement�that�requires�a�

clear�understanding�of:

− The�design�and�operating�parameters;

− Risks,��reliability�&�uncertainty;�

− Inspection�requirements;�

− Mitigation�activities�

− Assessment�methodologies�for�continued�

operation.

Facets�of�PIMS

Audit�

Baseline�

assessment

Training Inspection�&�

Maintenance

Fitness�for�

Service

PDAM

Repair

and�

Rehabilitation

Operation�

Control�&�

Monitoring

Engineering�

&�Design

PIPELINE INTEGRITY

MANAGEMENT SYSTEM(PIMS)

Risk�&�

Reliability

Operations�Team�Responsibilities

• Resource�and�Competency.�

• Procedures�

• Documentation�to�support�fitness�for�continued�operation.

• Emergency�Response

• Inventory�management.

• Preventative�maintenance.

PIMS�Key�Messages

• Risk management

− Cyclic�process.

• Pipeline threats

− Understand��- Time-dependent;�time-independent;�

stable

− Rigorous,�comprehensive�and�consistent�

approach.

• Pipeline Integrity Management Systems: PIMS

− Full�lifecycle�of�a�pipeline,�early�project�stage�

through�to�decommissioning

− Continuous�Improvement�cycle.

− Requires�involvement�from�a�diverse,�multi-

discipline�group�of�people

Skarv�Subsea�System�

Idun

Tilje

Skarv A

Skarv BC

Snadd S(Future)

Gas Export

ProductionGasUmbilical

FPSO

12” Prod

Flowline�(DEH)

10” Prod

Riser

26” Export

Pipeline

2�x�12” Export

Risers

Risers

2�x�10”Prod

1�x�10” Gas�Inj

Flowlines�

2�x�12” Prod

1�x�10” Gas�Inj

1�x�4�slot�template

1�x�6�slot�template

Risers

2�x�8” Prod

Flowline

2�x�10” Prod

1�x�10” Gas�

Inj

1�x�4�slot�template

1�x�6�slot�template

4�slot�template

12.8 km

4.3 km

2.9 km

Fibre�Optic

Cable�

Flowline

2�x�

12”Prod

Risers

2�x�10”Prod

Key Design Features - SURF• Conditions�130�Celcius &�330�Barg

• Template�Architecture

• Flexible�Jumpers

• Individual�Flowlines�(~44�km)

− 316L�clad�pipe�material

− Wet�insulation�system

− Production�loops�(except�Idun)

• Flowline and�Export�Rockdumping

− ~1.3m�tonnes

• Direct�Electrical�Heating�for�Idun

• Flexible�Risers�(10�inc�export)

• All�Piggable

Key Design Features – Gas Export • Conditions�60�Celcius and�240�Barg

• 26” X65�Carbon�Steel�Pipeline�(~80km)

• ERB�and�PLEM�Structures�(~400�tonnes)

− SSIV�in�ERB,�NRV�and�Future�Tie-in�in�PLEM

• Designed�for�Subsea-Subsea�Intelligent�Pigging

PLEM

ERB

Subsea Installation

= Tied in

= Flooded and Hydrotested

= Nitrogen Filled

ÅTS Tee (Existing)

Subsea Installation

Gas Export pipeline tied into Asgard trunk line

PIMS�Implementation�For�Skarv

• Project�Required�to�Deliver�‘Integrity�Management�System’

• Compliance�with�higher�of�National�Requirements�or�BP�Standards-

• Key�‘ETPs’ For�Pipelines�include-

− GP�43-17 Pipeline�Risk�Management

− GP�43-49 Pipeline�Integrity�Management�Systems�(PIMS)

− GP�43-52 Inspection�and�Integrity�Assessment�of�Pipelines

Skarv�PIMS�Status�Today

• Completed�‘FMECA’ of�SS�System�in�2009

• Flowline and�Pipeline�‘Threat�Assessment’ in�2011

− To�new�BP�methodology

− Wide�BP�multi-discipline�involvement�

− Norway,�Region,�Segment

− Project�and�Operations

• All�Integrity�Documents�Completed�in�Draft�or�Issued

• Documents�currently�being�Approved�internally

• Inspection�Procedures�being�Issued�in�Draft�at�present