Full Field Abandonment & Decommissioning

Our experience defines us.

Helix has earned historical success as full-field abandonment contractor with decades of experience providing specialty services to the offshore energy industry worldwide, including performing over 1,600 subsea well intervention operations. 

We are committed to building onto decades of experience using our fleet of global assets and highly skilled crews, meaning you can use the right asset for the right phase of the operation. 

Helix provides more than well suspension services; we offer global decommissioning services and full field production enhancement. We have developed innovative systems and techniques to help reduce the cost burden of decommissioning subsea wells and subsea architecture. 

The July 2022 acquisition of Alliance group of companies augments Helix’s decommissioning and life-of-field maintenance service capabilities through the addition of comprehensive shallow water assets, including a fleet of Jones Act-compliant vessels, lift boats, heavy lift derrick barges, offshore supply vessels, diving vessels, plug and abandonment system, coiled tubing systems and snubbing units.

We provide cost-efficient, robust, technical solutions for your well decommissioning needs including well suspension, plugging and abandonment, tubing removal, tree recovery, saturation diving and seabed clearance all fully project managed under a single contract.

Our shallow and deepwater decommissioning services support objectives that manage and optimize the cost of your offshore projects. Leveraging our decades of experience, we can provide expertise in the following areas:

Well services

  • Topside wells services
  • Abandon Temporarily Suspended Wells
  • Full Plug and Abandonment
  • Temporary Well Abandonment (T&A)
  • Temp Well Suspension
  • Well Suspension
  • Cement Remediation
  • Suspended Well Wellhead removal
  • Open Water Upper Completions
  • Recover Production Tubing
  • Recover Production Casing
  • ROAM
  • Wellhead Removal
  • Through Tubing Abandonment
  • Wireline Perforating
  • Tubing Removal
  • Well Plugging
  • Upper P&A
  • Pipeline abandonment services
  • Site inspections
  • Reclamation and remediation services


Seabed clearance

  • Trenching and Burial
  • Cable Burial
  • Subsea Architecture Removal
  • Wellhead facilities Removal

Saturation diving

Where to next?


Riser-based well intervention for well enhancement, workover or abandonment operations.


Increase your recovery rates with efficient riserless well intervention alternatives to rig-based operations.


Helix utilize the latest state-of-the-art subsea robotics vehicles and tooling.