B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/1, 201/148,
B63B 35/00 (2006.01) B63B 22/02 (2006.01) E21B 17/01 (2006.01) E21B 19/00 (2006.01)
Patent
CA 1196232
AN OFFSHORE PROCESS VESSEL AND A METHOD OF OPERATING SAME TO RECEIVE OIL AND/OR GAS PRODUCTION FROM A SUBSEA WELL Abstract An offshore process vessel (50) for connection to the service and production hoses (48, 49) of a deepwater production riser system (38) has a pair of longitudinally aligned moonpools (60,70), a derrick (81) above the forward moonpool (60), a rotary powered turret (72) within the aft moonpool (70), and a rotary fluid transfer system for transferring production fluids, electrical power, hydraulic power, and control signals across a rotating interface between the vessel (50) and a flowline bundle (40) of the service and production hoses. The turret (72) supports a coaxially disposed and selectively ejectable plug (75) through which the service and production hoses (48, 49) pass. The hoses (48, 49) are joined together in a linear array along the length of the flowline bundle (40) which hangs as a catenary from the plug (75) while being attached to the riser system (38). The vessel additionally has a plurality of hose reels and wire winches for assembling the service and production hoses (48, 49) into the flowline bundle (40) as a sling between the moonpools (60, 70) and below the vessel (50). The winches also enable the flowline bundle (40) to be disconnected at its inlet end from the service moonpool (60) and to be connected to the riser system (38).
427856
Gentry Larry L.
Moss Herbert H.
Panicker Narayana N.
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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