Title:
スイベル
Document Type and Number:
Japanese Patent JP3816536
Kind Code:
B2
Abstract:
A swivel assembly for installation at a well for subsea production of oil or gas and adapted to be connected to a production vessel at the sea surface. The swivel assembly comprises a main fluid swivel having at least two paths and an electric/hydraulic auxiliary swivel for signal communication and power transfer. The fluid swivel is provided with a rotatable swivel housing at the top of a stationary christmas tree, preferably comprising a small number of valves, such as a production master valve and an annulus master valve. The paths are through-running vertically in the central core member of the fluid swivel so as to make possible well intervention from the upper side of the fluid swivel.
Inventors:
Ingebrizen, Atre, Bee.
Aide, Jorgen
Aide, Jorgen
Application Number:
JP51151298A
Publication Date:
August 30, 2006
Filing Date:
August 21, 1997
Export Citation:
Assignee:
Den Norske Stats Orgeselskup A.S.
International Classes:
E21B33/038; E21B43/013; E21B34/04
Foreign References:
| US3750749 |
Attorney, Agent or Firm:
Takao Kawasaki