Title:
【発明の名称】海洋油井田の浮遊式生産システム及び掘削船
Document Type and Number:
Japanese Patent JPH02501561
Kind Code:
A
Abstract:
A semi-submersible vessel (24) for a floating oil production system comprises a superstructure (62) supported by legs (60) which are joined by a base (58) at their lower ends to form a rigid structure. The vessel is made from steel boxes welded together and square or rectangular in horizontal cross-section. Oil processing facilities on the vessel are connected by flexible risers (22) to the upper ends of rigid or semirigid risers (12) secured to a buoy (18) held against movement at a depth of some 50 m. The vessel is thus free to move relative to the risers (12) which are held at a level such that they are substantially unaffected by wind, wave and tidal movements.
Inventors:
Lang, Alexander Craig
Ryan, Barry Richard
Ryan, Barry Richard
Application Number:
JP50788988A
Publication Date:
May 31, 1990
Filing Date:
October 03, 1988
Export Citation:
Assignee:
Seaways Engineering (YK) Limited
International Classes:
E02B17/00; B63B9/06; B63B35/44; E21B43/013; (IPC1-7): B63B35/44; E02B17/00; E21B43/013
Attorney, Agent or Firm:
Akira Wada