bp psa pipeline pims presentation 19102011 rev 4 2011... · pigging. plem erb subsea installation =...
TRANSCRIPT
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