Antrim, Centrica contract OIS for North Sea well abandonment

Offshore staff

ABERDEEN, UK – Offshore Installation Services (OIS) has received a contract from Antrim Energy to decommission four subsea wells in the central North Sea. The offshore scope of the campaign, which also includes six wells from Centrica Energy, will include complete offshore and onshore project management, vessel charter, equipment, and personnel.

The wells, in categories 2.1 and 1, will be abandoned using Acteon sister company Claxton’s Suspended Well Abandonment Tool (SWAT). SWAT is a diverless, vessel-based approach and will be completed as part of a multi-operator campaign in summer 2015.

The offshore campaign will be conducted from anchor-handling tug supply vessel Island Valiant. During phase one, SWAT will be deployed through the vessel’s moonpool to set cement plugs in the bore and across all the casing annuli. The second phase will use an abrasive severance system for the cutting of the wells and sequential removal from the seabed. This will conclude the offshore operations.

06/22/2015

(Photo courtesy OIS)

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