Plug & Abandonment


We have a track record of successful decommissioning support work on over 150 wells. This has included intervention support for plug setting, isolation verification, removal of Xmas trees and tubing hangers, through to supply and fitting of suspension flanges.

One of Unity’s values is to provide a single point of contracting expertise across late and end of life surface well integrity projects, balanced with close partner collaboration. This enables efficient planning, cost savings and streamlined work scopes to be realised, reducing rig time and likelihood of overruns.

In the high cost subsea industry, we are experiencing increasing demand for innovative technology to improve efficiency in decommissioning, where small gains provide large savings. Our Temporary Abandonment Cap Test Tool (TACTT) uniquely provides a means of verifying pressure below the suspension cap prior to removal and can be used to safely vent this pressure. This enables vessel rather than rig-based pre-abandonment preparatory activity to be undertaken at a much lower cost.