Claxton secures decommissioning work in the southern North Sea

Claxton has won a casing cutting and recovery combined services contract from an operator in the southern North Sea.

Offshore staff

GREAT YARMOUTH, UK– Claxton has won a casing cutting and recovery combined services contract with a southern North Sea operator.

The company will riglessly casing cut and recover a total of seven wells in the southern North Sea across two of the operator’s, normally unmanned platforms, along with an additional subsea suspended well at one of the locations.

Work is scheduled to begin in July at the first location about 180 km (112 mi) off the Yorkshire coast, with work on the second platform, in the Dowsing Fault Zone of the southern North Sea, commencing soon afterwards. The combined project completion is estimated at less than 100 days.

The first NUI scope of work includes the removal of christmas trees in preparation for the removal of the production tubing, wellhead preparation in readiness to also undertake the sub-mudline multi conductor/casing cutting and recovery, and severance and conductor recovery of the suspended subsea well. Due to limited deck space, work will be conducted as a combined operation using the jackup lift bargeJULB.

Managing Director Laura Claxton said: “We will be using a 150-metric ton hydraulic proving jack package, Claxton Double Drilling Units for drilling and pinning and rapid cut bandsaws for cutting the combined multi strings. Marine growth stripping and removal using our purpose designed tooling will also be delivered, along with multi-string severance using our proprietaryabrasive water jet cutting system SABRE.”

The scope of work on the second platform includes christmas tree and tubing removal, supply of BOP equipment, and the use of coiled tubing for cement squeezing operations. Tubing and conductor severance and recovery will be performed using the company’s SABRE abrasive cutting system 10 ft (3 m) below the seabed.


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