Wells – Submerged well – Connection or disconnection of submerged members remotely...
Patent
1997-01-27
1998-08-18
Suchfield, George A.
Wells
Submerged well
Connection or disconnection of submerged members remotely...
166345, 166355, 166359, 166366, 405224, E21B 712, E21B 33038
Patent
active
057947007
ABSTRACT:
An offshore fluid transfer system (10) is provided, of the type that includes a riser (32) having an upper end (34) connected through a universal joint (36) to a turret (22) on a vessel and having a lower end (36) anchored by catenary chains (40), and that also includes hoses (70, 71) extending from a base (50, 58) on the seafloor to the turret on the vessel, which avoids the need for a complicated hose structure to pass fluid across the universal joint. A fluid coupling (73) near the bottom of the turret, which is widely spaced from the universal joint, connects to a hose that extends from the fluid coupling in a sinuous path down to the seafloor base. The long length of hose, enables it to bend when the vessel drifts, to avoid excessive hose tension or riser contact during such vessel drift. A riser connector (102) can be operated to disconnect the riser from the turret so the riser can sink. The fluid coupling can include a fluid connector (100) which can separately disconnect the hose from the turret. A ring-shaped holder (80) connected to the hose lies around the axis of the turret and around the riser.
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Imodco Inc.
Suchfield George A.
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