Decision Support for Dynamic Barrier Management- Summary of JIP

Transcription

1 Decision Support for Dynamic Barrier Management- Summary of JIP IADC DEC Forum Amar Ahluwalia (DNV GL) September SAFER, SMARTER, GREENER

2 Background similar approaches Argonne National Laboratory Multiple Physical Barrier (MPB) DNV GL Bowtie Diagrams with Success Paths The success path model is a systematic way to identify the key functions and elements needed to ensure the success of a given objective /physical barrier.

3 Bow tie diagrams and response trees form the foundation for decision support for dynamic barrier management Bow Tie Diagram THEN the BOP barrier IF the fluid column is activated using an barrier is degraded or available fails Response success Tree path 3

4 Objective, Scope & Participants Objective Assess value of barrier-success path approach Scope Select well integrity scenario for case study Conduct workshops to apply approach Capture Lessons Learned Participants: Operators: Shell, Hess, ConocoPhillips, Maersk Drilling, Total, PEMEX Drilling Contractors: Diamond Offshore, Transocean Service Contractors: Schlumberger, Baker Hughes Regulators: BSEE, SENER, PSA 4

5 Results Success Paths developed for P&A case (design, install & test) Regulatory compliance tree for P&A (30 CFR ) Final Report issued in 2017 Published on BSEE website Feedback Common/simpler framework for communication & consensus- fewer ways to succeed than fail Useful for developing operating procedures Pre-identify alternatives & secure management approval in advance Keep bowtie diagrams visually simple 5

6 Regulatory Compliance Assessment During Operations: Decision Criteria for Drilling Operations Based on BOP Functionality Upper All Blind BOP Shear Functions Ram Unavailable Available Lower Middle Normal Pipe Drilling Ram Unavailable Operations Upper Pipe Ram Unavailable Criteria for Continued Criteria for Continued Operation Operation Stop Drilling Operations Maintain Pathways for Hydraulic Maintain Fluid to Pathways Each Critical for Function Hydraulic Fluid to Each Critical Function Maintain Pathways of Maintain Pathways of Maintain Hydraulic Pathways Fluid for of Hydraulic Maintain Fluid Pathways for Functions of Functions Hydraulic to Isolate Fluid for Well Hydraulic to Circulate Fluid for Well Functions Functions to Isolate Well to Circulate Well Maintain Availability of Maintain Safety Functions Availability of Safety Functions Maintain Availability of Maintain ROV Functions Availability of ROV Functions Notify Regulatory Authorities Pull the BOP for Maintenance Minimum of One Minimum Annular Preventer of One Annular Preventer Minimum of Two Minimum Pipe Rams of Two Pipe Rams 2/3 2/3 Minimum of Two Sets of Shear Rams, Minimum at Least of Two One Sets of Which of Shear is Rams, Capable at Least of One Sealing of Which is Capable of Sealing Unlatch the LMRP Unlatch Connector the LMRP Connector Upper Annular Lower Annular Upper Pipe Ram Upper Annular Lower Annular Upper Pipe Ram Upper Middle Pipe Ram Upper Middle Pipe Ram Lower Middle Pipe Ram Lower Middle Pipe Ram Upper and Lower Blind s Upper and Lower Blind s Upper BSR and Casing s Upper BSR and Casing s Lower BSR and LMRP Connector Casing s Unlock Lower BSR and LMRP Connector Casing s Unlock Upper Blind Upper Blind Casing Shear Ram Casing Shear Ram LMRP Connector Primary Unlock LMRP Connector Primary Unlock LMRP Connector Secondary Unlock LMRP Connector Secondary Unlock Upper Blind Upper Blind Lower Blind Lower Blind Lower Blind Lower Blind Casing Shear Ram Casing Shear Ram 6

7 Key Future Areas of Collaboration Target areas for automation & sensor placement Common Dashboard for Improved communication and monitoring using the barrier-success path framework 7

8 Questions? Amar Ahluwalia SAFER, SMARTER, GREENER 8