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SPE Workshop : Well Abandonment featuring Rig
Reactivation and Alternatives27 – 28 June 2017 ● Aberdeen , UK
SOCIETY OF PETROLEUM ENGINEERS
Integrated Well Abandonment Solutions – Case Study
and Transferring the Learnings From Asia
Jamie Stewart (Schlumberger – Kuala Lumpur)
Objective
Share the integration experience in the on-going land P&A campaign executed in Bruneisince December 2014 supported by a 3 pillar arrangement:
• Brunei Shell Petroleum – Operator, owner of the wells and assets
• Schlumberger - Integrated services provider.
• Brunei local rig contractor (HWU).
Service integration through the Execution stage of P&A.
1. Candidate identification & regulatory approval (BSP)
2. Abandonment Maturation (BSP)
3. Abandonment execution (subsurface) (BSP/SLB/HWU)
4. Monitoring & Wellhead Decommissioning (BSP)
DateSPE Workshop : Well Abandonment featuring Rig Reactivation and
Alternatives27 – 28 June 2017 ● Aberdeen , UK
3
Operator
BSP
Rig Contractor
P&A Project
IPS
Schlumberger
Introduction – BSP Onshore P&A
Mature Land Asset > 85 Years
Wells around Seria town – Western
Brunei
Campaign Approach for onshore well
abandonment
30+ abandonments per year
Date 4SPE Workshop : Well Abandonment featuring Rig Reactivation and
Alternatives27 – 28 June 2017 ● Aberdeen , UK
The Workflow
Date 5
Candidate Selection
(Internal review)
Regulatory Approval
Abandonment Maturation
Monitoring Wellhead Pressure
(6 months)
Abandonment Execution
(Subsurface)
Wellhead Abandonment
and Site Restoration
SPE Workshop : Well Abandonment featuring Rig Reactivation and Alternatives
27 – 28 June 2017 ● Aberdeen , UK
Date 6
Technical/Non-Technical Challenges
Rig Moves & Noise levels within
Populated/Residential Areas
Illumination at Night of the Work Site
Well Control Risk – Small but has Potential
Potential H2S & CO2 Risk – Low
WELL
Mitigations
Continuous Review and optimization of
operations
Learning Curve (repetitive jobs)
Single barrier risk based operations
Core Crew continuity
Timely Community engagement
Improved Logistics planning and executionSPE Workshop : Well Abandonment featuring Rig Reactivation and
Alternatives27 – 28 June 2017 ● Aberdeen , UK
Wellsites
Service Integration inAabandonment Execution (Downhole)
Date 8
Schlumberger
Fishing & Remedial
UNDER REAMING
STAND BY FISHING TOOLS
TUBING SPEARS
CASING SCRAPERS
CASING CUTTERS
CASING SPEARS
SECTION MILLS
Schlumberger
MI SWACO
HEAVY MUD
WELL KILL CHEMICALS
BRINE CHEMICALS
Schlumberger
Wireline / DSL
LOG 10 ¾” CASING
SET BRIDGE PLUGS
LOG 7” CASING
TUBING CUT / PUNCH
SET & PULL 2WCV / BPV
Schlumberger
Well Services
PUMPING
CEMENTING
Schlumberger Managed
Third Party
SLICK PLUG RUN & PULL
FLUIDS DISPOSAL
BRIDGE PLUGS
Integrated Approach
Model to Improve Performance & reduce Costs
Crew Continuity Initiative
Alignment of project goals
Risk allocation and management
Optimized personnel interface
Integrated Production ServicesSEGMENT
COORDINATION SINGLE INVOICE
DRILLPIPE / COLLARS
CASING & TUBING HANDLING
WELL CONTROL
MUD SYSTEM
WELL SITE PREPARATION
Client Rig Contractor
Learning & Continuous Improvement
Offer Increased Local Employment
Opportunities
Performance Driven
Minimize footprint
Joint planning
24 Hrs Execution
SPE Workshop : Well Abandonment featuring Rig Reactivation and Alternatives
27 – 28 June 2017 ● Aberdeen , UK
Date 9
Abandonment Execution
P&A Start Well Handover
BSP
OPERATIONS SUPERVISION (WSS)
PROGRAM EXECUTION (WE)
ABA PROGRAM EOWRMOC
WAP
Land Well P&A Lifecycle
RIG
SITE PREPARATION
RIG MOVE RIG UP RIG DOWN
ABANDONMENT EXECUTION
HEAVY MUD
WELL KILL CHEMICALS
BRINE CHEMICALS
MISWACO
INTEGRATED SERVICE PROJECT MANAGEMENT
SINGLE INVOICESLICK PLUG TPS
WASTE DISPOSAL
BRIDGE PLUGS BRIDGE PLUGS
IPS
SET BRIDGE PLUGS
SET & PULL SLICK PLUG
SET BRIDGE PLUGS
LOG SURF. CASING
LOG PROD CASING
TUBING CUT / PUNCH
WIRELINE
UNDER REAMINGSTAND BY FISHING TOOLS
TUBING SPEAR
CASING SCRAPERS
CASING CUTTERS
CASING SPEARS
SECTION MILLS
PUMPING
SURFACE CEMENTING
CASING SCRAPERS
CEMENTING
CASING CUTTERS
CASING SPEARS
CONTIGENCY
DT&R
WCS
SPE Workshop : Well Abandonment featuring Rig Reactivation and Alternatives
27 – 28 June 2017 ● Aberdeen , UK
Date 10
Performance Results
Initial Pilot project started in January 2015 covered 10 Wells
Project performance exceeded all KPI’s, lead to larger scope. Q1 - 2015 onwards to Q1 2017
Maximized learning curve
Cost effective solution to minimize operator liabilities
Project Resume – Q1 - 2017 63 wells abandoned 2 commercial models succeed All wells within 3 km from Seria Total Operational time: 648 Days Operational KPI achieved:
No HSE Incidents No Call-off delays Zero NPT for Rig Up/Down
equipment Total SLB NPT < 0.81%
SPE Workshop : Well Abandonment featuring Rig Reactivation and Alternatives
27 – 28 June 2017 ● Aberdeen , UK
Date 11
Performance Results
*Cost info confidential, showing % comparison
Client Main Improvement Triggers: BSP removal of unnecessary operations Repetitive jobs (LC) Single barrier risk based operations Scope reduction SLB integrated contract Rig fit for purpose
SPE Workshop : Well Abandonment featuring Rig Reactivation and Alternatives
27 – 28 June 2017 ● Aberdeen , UK
Date 12
Summary & Conclusion
The Benefits of Integrating Services
Single Point of Contact for Client
Core Crew – Enhancing Job Familiarity
Distinctive Reduction in NPT
Increased Service Quality
Faster learning curve
Contractual and technical continuity
Challenge after optimization
Bottleneck displaced to maturation & regulatory
approval
Increase on abandonment complexity
Opportunity for new technology trials
Open to different business models
SPE Workshop : Well Abandonment featuring Rig Reactivation and Alternatives
27 – 28 June 2017 ● Aberdeen , UK
