Oil and Gas Decommissioning | Decom North Sea

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Company Overview

N-Sea Group is an integrated subsea infrastructure services provider, offering a wide range of assurance and maintenance services to the oil and gas and renewable sectors.



The capabilities of our offshore business unit includes diving and ROV services, subsea construction and installation, IRM (inspection, repair and maintenance), survey, decommissioning and abandonment and remediation/stabilisation services.

We utilise our fleet of dive support vessels and specialist intervention craft to deliver a range of subsea services for marine-based rigs, platforms, FPSOs and renewables operations with minimal impact on production.

For larger, integrated projects our mother vessels and project teams provide combined intervention craft and vessel diving, ROV and survey services.

N-Sea has supported several decommissioning projects for our clients. They include, but are not limited to, the following examples:

  • OIS – Vessel Based Well Abandonment at the Murchison
  • Maersk Oil – Janice Platform Redundant Riser Recovery.
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