Williams Field Services, Houston, last month awarded a contract for design, procurement, installation, and commissioning of pipelines to be installed in the US Gulf of Mexico late next year.
The export pipelines from the Boomvang and Nansen fields in 3,600 ft water in East Breaks will be installed by the new CSO Deep Blue (Fig. 1), owned and operated by Coflexip Stena Offshore Inc., a Gulf of Mexico-based unit of Coflexip Stena Offshore Group, Paris.
The pipeline system is being designed by Coflexip Stena Offshore's RJ Brown Deepwater Inc., Houston.
In announcing the contract, Coflexip Stena Offshore said the contract work scope consists of project management, engineering, and installation of more than 100 miles of rigid pipeline and steel catenary risers ranging from 12 to 18 in. OD and tie-in to the fields' SPAR platforms using the risers. Coflexip Stena will also install all associated subsea structures.
CSO Deep Blue was launched in late summer and is currently undergoing further construction and commissioning at the Hyundai Mipo dockyards, Ulsan, South Korea.
At the launching, the company said the vessel's laying system is designed around a powerful tiltable ramp and equipped with two quad-track tensioners capable of sustaining 550 tonnes. This capacity is reinforced by the vessel's ability to lay rigid (reeled), flexible, rigid (J-lay) line pipe and umbilicals.
