MOVING MODULAR PLATFORM DRILLING RIGS IN BASS STRAIT

PRESENTED BY BRYCE BAKER (RIG MANAGER)

DRILLWELL FORUM MELBOURNE 02 DECEMBER 2010

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OBJECTIVE

DEVELOPING BEST PRACTICE FOR MOVING RIG 175 IN

BASS STRAIT

STRATERGIES

DESIGN AND SYSTEMS

TACTICS

PROCESS AND PEOPLE

RESULTS

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> Box on Box

> Plug and Play

> Boot Strap Mast

> Appropriate Mechanization

> Integrated Modules

> Pinned Connections

> API Certification

RIG 175 DESIGN

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RIG 175 DESIGN•Easy installation

•Services and access ways built in

•Weight limited to platform crane capacity (36 MT)

•Built in protection for work at height

•Built in spill prevention

•Third party verification of design and fabrication

•Trial rig up

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SYSTEMS

> Platform Safety Case.

> Operations Integrity Management System (OIMS)

> Nabors Rig Management System (RMS)

> Site Safety Plan

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CHALLENGES MOVING RIGS IN BASS STRAIT

•Weather

•Sea State

•Confined work site

•Crane activity

•Logistics

•Sim Ops

•Crew Focus change from drilling to rig move mode

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INSTALLING MUD PUMP MODULES TO LOAD SHARING BEAMS

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DRILLING SUPPORT MODULE (DSM)

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ROTARY TABLE INSTALLATION

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RAISING THE MAST

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RAISING THE MAST ASSIST

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TACTICS

PLANNING

TRAININGSUPERVISION

PROCEDURESCOMMUNICATION

TEAM WORK

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PLANNING

> Rig Move on Paper> Rig Move Risk Assessment > Rig Move Plan> Certified Visual Inspections (CVI)> Platform preparation> Dropped Object Management System (DOMS)> Lifting Equipment Management System (LEMS)> Preventative Maintenance

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TRAINING

Safety leadership

Observation & Intervention

Riggers

Dogman

Scaffolding

Tower Crane

Confined Space Entry

Work at Height

Emergency Response

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SUPERVISION

> Training in effective leadership and supervision > Increased level of rig supervision

• Offshore rig move coordinator• Deck supervisor position• Onshore rig move coordinator

> Supervision of critical tasks is specified in Rig move plan: • Raising and Lowering the mast;• Removal and Installation of BOP;• Removal and Installation of Drawworks and Crown• Heavy Lifts over well head bay

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COMMUNICATION

> Pre and Post Hitch Meetings> Daily operations meeting/conference call> Weekly Integrated Management Meeting> Onshore Rig Move Coordinator> Pre Tour Meetings> Weekly Safety Meeting> Stop Cards> Supportive leadership style encourages participation

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TEAM WORK

> Rig Move Workshop > Job Safety Analysis (JSA) for all tasks> Step Back 5 x 5 during task> Hazard Hunt > Post Job Review – What Went Well/How Could We

Do Better – Documented on the PCAR.> Suggestions and Feedback> Short Service Employee “Red Hat” Program> Reward and Recognition> Offsite Team Building

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RESULTS• Between Q2 2007 and Q3 2010 rig

175 drilled 34 wells including 4 complex ERD wells and the longest wells in Bass Strait A26a 6,456m MD, M33a – 6,200m MD with the highest rate of oil production in Bass Strait.

• First sub-volcanic completion.• Rig down time < 0.2% • 263 days Hurt Free Record• 3rd on EMDC Global Hurt Free

Leader board• 4 platform to platform rig moves. • 25% - 30% Improvement in rig move

time• Achieved Hurt Free Rig Move 2010

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CONCLUSION

The continuous improvement model for best practice rig moves in Bass Strait is based on a team approach

that has been able to engage the hearts and minds of the entire team.

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QUESTIONS ?