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Title:
APPARATUS AND METHOD FOR CONNECTING PRODUCTION APPARATUS IN SEA TO FLOAT EQUIPMENT
Document Type and Number:
Japanese Patent JPS611790
Kind Code:
A
Abstract:
There is disclosed a type of riser to connect subsea hydrocarbon production equipment to a floating storage, process or control facility which combines the advantages of integral and non-integral risers previously used. This is achieved by a locking mechanism which allows the individual tubes to be freed once each section of riser is added, and a subsea remotely operated connector that allows individual tubing to be released. Improvements in the design of collet connectors are also disclosed. There is also disclosed a guidelineless method of connecting risers or other equipment to subsea installations. The method uses a cone on the subsea equipment and a guideframe on the riser. The guideframe aligns itself with the subsea cone prior to the riser being connected. As the riser is drawn to the subsea mandrel the guideframe aligns the riser connector with the mandrel. A still further embodiment disclosed herein is a flexjoint consisting of a series of flexjoints in an outer case with a high pressure tube inside. Internal tubes are fixed at either end of the assembly to the outer case.

Inventors:
PIITAA ROBAATO GITSUBU
KAARERU BARIKU
Application Number:
JP2738684A
Publication Date:
January 07, 1986
Filing Date:
February 17, 1984
Export Citation:
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Assignee:
KIYANOOSHIYAN RESOOSU LTD
International Classes:
E21B43/013; E21B17/01; E21B33/038; F16L37/00; (IPC1-7): E21B43/01
Attorney, Agent or Firm:
Yukihisa Asano



 
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