CSL to decommission Tristan North West development

Offshore staff

ABERDEEN, UK -- Silverstone Energy/MCX Exploration (UK) have awarded CSL a $12-million lumpsum turnkey contract to decommission the Tristan North West development in block 49/29b of the UK southern North Sea.

The company’s scope of work involves subsea intervention and abandonment of two wells, one live and one suspended, and the decommissioning of associated subsea infrastructure. It also includes environmental and engineering assessments of the decommissioning options, submission and agreement of the decommissioning program with the Department of Energy and Climate Change (DECC), completion of all permits and consents, and execution of the offshore scope of work.

CSL will manage the program from start to finish collaborating with Helix Well Ops (UK) for well intervention, abandonment engineering, and diving services, and with BMT Cordah for environmental management services, including permits, consents, and environmental assessments.

The Helix-operated Seawell mono-hull well intervention vessel will perform offshore activities, scheduled to begin later this year.

01/11/2010