Offshore decommissioning and subsea removal services

Safe, efficient and environmentally responsible decommissioning

James Fisher's decommissioning specialists support decommissioning operations in both the oil and gas and renewables industries. We offer complete plug and abandonment of subsea wells and decommissioning of offshore wind turbine monopiles, as well as the safe removal of structures, platforms, pipelines and underwater infrastructure. You benefit from decades of engineering excellence and operational experience, as we help you to minimise risk and protect the environment.

With global capability across well and monopile severance, well abandonment, jacket removal, subsea structure recovery and seabed preparation, we provide turnkey solutions to ensure you meet regulatory requirements while providing responsible end of life asset management.

Our market-leading decommissioning solutions include diamond wire saws, hydraulic shears, hydraulic grabs, abrasive waterjet cutting, recovery tooling and Controlled Flow Excavation, plus the Soil Plug Removal Tool (SPRT) and SEABASS.

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Why James Fisher?

Full decommissioning support for oil and gas and renewables

Market-leading engineering, project management and operational capability

Late-phase well plug and abandonment with SEABASS™ and SEABASS™-MLS

Subsea and topside mechanical and abrasive cutting

Structure and pipeline recovery

Debris clearance and seabed restoration

Subsea infrastructure removal and decommissioning services

Our expert subsea infrastructure removal teams deliver precision cutting and recovery operations for pipelines, manifolds, templates and platform installations. Using advanced abrasive cutting, dredging and lifting tooling and processes, James Fisher helps you remove structures safely and efficiently.

We deliver well abandonment using SEABASS, a modular well abandonment tool enabling safe and efficient decommissioning operations. Well severance is delivered via specialised abrasive waterjet systems, with both backed by experienced field personnel.

For jacket and topside removal, our market-leading, in‑house dredging capabilities support the clearance of mud mats and soil plugs to ensure safe lift execution. This integrated approach reduces vessel time, increasing project efficiency and reducing cost.

Our seabed preparation capability includes rock dump dispersal, drill cutting dispersal and non‑contact excavation using CFE systems. These techniques enable safe access for decommissioning activity while keeping environmental impact to a minimum.