Deep water riser system for offshore drilling

Details Deep water riser system for offshore drilling Deep water riser system for offshore drilling

E - Fixed Constructions

21

B

166/51

E21B 33/035 (2006.01) B63B 21/20 (2006.01) E21B 7/128 (2006.01) E21B 17/01 (2006.01) E21B 33/038 (2006.01)

Patent

CA 1181680

ABSTRACT OF THE DISCLOSURE A buoyant riser system for use in a deep water offshore drilling environment is anchored by a system of compliant guys below the active weather zone of the sea. A controllably buoyant housing of the system is submerged at a depth that is readily accessible to divers and includes a blow-out preventer (BOP) from which a suspended sub-riser leads to a well bore to which the sub-riser is coupled. Above the housing, a riser suspended from a floating drill rig is coupled to the BOP thereby communicating the drill rig directly with the well bore for drilling and well completion operations.

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