Wellhead stabilization

Details Wellhead stabilization Wellhead stabilization

E - Fixed Constructions

21

B

166/51

E21B 33/043 (2006.01)

Patent

CA 1199866

ABSTRACT OF THE DISCLOSURE A sub-sea well assembly has features to eliminate side-to-side movement between a wellhead and a wellhead housing due to movement of the drilling vessel. The wellhead extends into the wellhead housing and is connected on its upper end to equipment extending to the vessel. Slips are located in an annular space between the wellhead housing passage and the exterior wall of the wellhead. The slips are mounted so that they will slide from the contracted position when the wellhead is being placed into the wellhead housing to an expanded position after the wellhead is locked into the wellhead housing.- In the expanded position, the slips move downward to wedge, but are not weight bearing. The slips are self-actuating, with a spring to urge them downward into the expanded position.

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