industry response - post macondo 4th edition of api rp 53 recommended practices for blowout...
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Industry Response - Post Macondo
Charlie Williams
Chief Scientist – Well Engineering
Shell Energy Resource Company
CSIS Energy and National Security Program - future of
offshore oil & gas developments in the United StatesA p r i l 19, 2011
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Presentation Outline
Industry Task Forces & Industry Standards
Subsea Containment
Well Design
Center for Offshore Safety
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What is Different ???
EVERYTHING
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An industry constantly evolving thru new
technologies & approaches to:
access deeper waters & more remote
locations
explore & develop more challenging
reservoirs
enhance environmental protection,
improve the safety of our people &
operations
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Joint Industry Task Forces
• Offshore Equipment
• Offshore Procedures
• Subsea Well Control & Containment
• Oil Spill Preparedness & Response
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Joint Industry Task Forces were formed to:
• Identify any gaps in operations or practices that could
affect safety
• Seek options to address gaps via recommended
practices, procedures, and R&D
• Improve Industry’s capabilities in safety, environmental
performance and spill prevention & response.
Joint Industry Task Forces
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Offshore Equipment Task Force
Working:
•BOP shearing capabilities
•BOP acoustics systems
•BOP ROV interface
• Performance based maintenance option
• Competency in training, procedures & operations.
• Clarification on guidelines between Owner & OEM
Working 4th edition of API RP 53 Recommended
Practices for Blowout Prevention Equipment Systems
for Drilling Wells - will be updated to a Standard
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BOP Changes
Proactive
•two shear RAMS
•ROV’s fitted with additional Hydraulic Fluid reservoir
•SSBOP’s ROV Panels are equipped with API 17H stab receptacles
New Regulatory
•Third party certification of the BOP components and functionality of
stack
•Dead-man/auto-shear circuit function tested on the stump
•ROV function test of Stack on the Stump
•Shear data for drill pipe submitted with permit
•BOEM witnesses the Stump Test.
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API RP 96 Deepwater Well Design Considerations
API RP 65-Part 2 Isolating Potential Flow Zones During
Well Construction 2nd Edition
Offshore Procedures Task Force
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RP 96 Document Sections
• Deepwater Activities and Rig Systems Overview
• Well Design Considerations
• Architecture
• Barrier Philosophy
• Load Cases
• Internal and External Loads
• Survival Load Examples
• Operations (displacements, etc)
• Completion Operations
• Management of Change
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Well Design Changes
Proactive
•Heavy emphasis on Cap & Shut In
New Regulatory
•NTL-10 requirements– level 1 or 2 uni-axial screening for the
protective casing.
•PE certification that
Two independent tested barrier , including one mechanical
barrier, across each flow path during completion activities
Casing & cementing design is appropriate for the purpose
which it is intended under expected wellbore conditions
•Documentation of consideration for RP65, RP65-2, RP53
Accumulator Volume
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API 97 - Well Construction Interface Doc (WCID)
Bridging document between:
•Drilling contractor’s HSE safety case
•Operator’s safety & environmental management
system
Will address safety & risk management on a well by
well basis.
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WCID – Bridging Document - API Bul 97
Drilling
’
Well
Lease Operator’s Safety
Management System
Critical Well Activity Risk
Assessments
Well Execution Plan
Well Construction Interfacing
Document
Risk Analysis & Mitigation
Management of Change
Personnel Competency
Drilling Contractor’s Safety
Management System
Drilling Contractor’s Safety
Case
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Subsea Well Control and Containment Task Force
Identified five key areas of focus:
•well containment at the seafloor
• intervention within the subsea well
•subsea collection
•surface processing & storage
•relief wells
Plus R&D recommendations
Developed 29 recommendations to enhance the industry’s
well control & containment capability
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Oil Spill Response
More than 20 individual workgroups
Each groups has addressed an individual component of
spill response,
Identified:
•participants,
•objectives,
•timelines,
•budgets
JITF now shifting attention to long-tem items
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Industry is proactively moving forward with
technical & capacity improvements
Combined mechanical recovery capabilities are
significantly increasing
Concurrently, progressing JITF recommendations
through API Oil Spill Preparedness & Response
Subcommittee
Oil Spill Response
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Oil Spill Response
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Oil Spill Response
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Helix Containment System
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MWCC
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MWCC
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Level 1 & Level 2 Casing Design
BOEMRE – demonstrate ability to “shut-in the well with a capping stack with full displacement of the mud while maintaining wellbore integrity”
Wells that pass (Level 1) have sufficient integrity for shut-in as the primary containment plan
Proposed Level 1 screening requirements are:
Collapse design factor >1 with unrestricted flow at seafloor
Burst design factor >1 shut-in at seafloor
Maximum shut in pressure in open hole < formation integrity
Key inputs:
Reservoir data (pressure/fluid gradient) from WCD analysis
API or manufacturers burst / collapse ratings
Fracture gradient as submitted with APD
Wells that do not pass are (Level 2) &
require additional analysis
Cap & Flow
Cap with subsurface pressure relief
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Center for Offshore Safety
Industry-led organization to promote the highest
level of safety for offshore drilling, completions, &
operations by:
effective leadership,
communication,
teamwork,
utilization of disciplined safety management
systems
independent third-party auditing & certification.
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Center for Offshore Safety
The center will achieve operational excellence by:
• Enhancing & continuously improving industry's safety
& environmental performance,
• Building public confidence & trust thru demonstrated
performance
• Increasing public awareness of industry's safety &
environmental performance & processes
• Stimulating cooperation to share best practices &
learn from each other,
• Providing a platform for collaboration between
industry, the government, & other stakeholders.