Title:
【発明の名称】海洋における炭化水素生産システム
Document Type and Number:
Japanese Patent JP3471357
Kind Code:
B2
Abstract:
PCT No. PCT/NO94/00119 Sec. 371 Date May 3, 1996 Sec. 102(e) Date May 3, 1996 PCT Filed Jul. 5, 1994 PCT Pub. No. WO95/01904 PCT Pub. Date Jan. 19, 1995A system for offshore production of hydrocarbons via a vessel arranged for quick connection to and disconnection from a submerged body. The system comprises an outer buoyancy member for introduction and releasable securing in a submerged downwardly open receiving space in the vessel, and a center member which is rotatably mounted in the outer member and is anchored to the sea bed and is connected to at least one riser extending between a production well and the vessel. A swivel device is arranged at the upper end of the buoy for interconnection and transfer of process fluid between the risers and a tube system on the vessel. The swivel device comprises an outer female member permanently fastened to the center member of the buoy with its opening coaxial with the center member, and an inner male member which may be lowered into and raised from the female member via an operator on the vessel. When connected, the swivel members define common annular spaces communicating with associated fluid paths in the swivel members. Seals are provided on each side of the annular spaces and can be activated to form a seal between the annular spaces during operation. The seal can be relieved when the swivel members are disconnected.
Inventors:
Sigmunsta Martin
Application Number:
JP50397695A
Publication Date:
December 02, 2003
Filing Date:
July 05, 1994
Export Citation:
Assignee:
Den North Custats Aureles Cup A.S.
International Classes:
B63B22/00; B63B22/02; E21B43/01; B63B27/34; F16L27/08; (IPC1-7): E21B43/01; B63B22/00
Other References:
【文献】国際公開93/24731(WO,A1)
【文献】国際公開93/24732(WO,A1)
【文献】国際公開93/24732(WO,A1)
Attorney, Agent or Firm:
Eijiro Tanikawa