Decommissioning & End of Life

Well Plug & Abandonment

Integrated expertise and knowledge of all aspects of well abandonment to ensure safe, efficient and cost-effective plug and abandonment of subsea and platform wells.

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Well abandonment in North Sea

Discuss a project with us

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Our integrated project teams use the latest technologies and practices to plan and execute the safest, most effective, and economical well abandonment projects. We use a holistic risk-based approach based on comprehensive engineering assessments and extensive hand-on experience of managing the logistics and economics of well abandonment projects. 

Our project teams typically comprise of skills including project management, facilities engineering, drilling, well engineering, cost modelling and planning.  

In the planning phase, our structural analysis experts apply a thorough understanding of the safety philosophy on which industry design codes are based and a pragmatic approach to risk to abandonment assessments. This allows us to identify and mitigate potential concerns early to ensure plug and abandonment operations are conducted as smoothly as possible. 

We have extensive practical and hands-on installation knowledge and experience in well decommissioning, including project definition, scope and objectives, environmental objectives, contracting and procurement strategies, logistics and detailed well abandonment procedures, organization and human resource plans, and QA and HSE plans. 

We can also offer a range of complementary capabilities within the Group, including casing cutting and retrieval tools, marine procedure management, lifting and retrieval services, and facilitation of multi-operator abandonment programmes. 

Key Services 

  • Development of well plug and abandonment programs

  • Temporary or permanent well abandonment and re-abandonment

  • Subsea and platform well abandonment

  • Rigless abandonment

  • Planning and feasibility assessments

  • Sump remediation and drill site restoration

  • Regulatory notices and communications

  • Site clearance and restoration plans

Project Experience

  • Centrica Energy – F3-8 well plug and abandonment from a jack-up

  • Interact – HRL Morecambe Bay abandonment riser analysis

  • Shell – Draugen well plug and abandonment wellhead system fatigue analysis

  • Chevron – Alder suspended well plug and abandonment fatigue analysis

  • BG – Everest subsea exploration well plug and abandonment fatigue analysis

  • TAQA – Cormorant UMC 13-5/8” wellhead system plug and abandonment fatigue analysis

  • BP – Na Kika F3 well plug and abandonment analysis with Ensco DS3 rig

  • BP – Thunder Horse 777-5 well plug and abandonment analysis with West Capricorn

  • BP – MC217-1 well plug and abandonment analysis with West Vela

  • Shell – Macaroni and Europa plug and abandonment analysis with Q4000

  • Shell – Popeye upper abandonment analysis with Atwood Condor

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