Tools for shallow flow wellhead systems

Details Tools for shallow flow wellhead systems Tools for shallow flow wellhead systems

1996-05-10

1998-08-11

Neuder, William P.

Wells

Submerged well

Wellhead

1663344, F21B 3314

Patent

active

057914184

ABSTRACT:
A tool is employed to shift an external valve sleeve on an outer wellhead housing at a subsea location. The tool has an engaging member that moves between upper and lower positions. The tool has a locking member that locks to the inner wellhead housing with the engaging member sliding over the outer wellhead housing. In one embodiment, the tool also is employed to run the inner wellhead housing and preload it. The engaging member moves to a lower position to shift the valve sleeve after the inner wellhead housing has been preloaded by the tool. In another embodiment, the tool is lowered over a previously installed inner wellhead housing to retrieve the valve sleeve for repair or replacement.

REFERENCES:
patent: 4040485 (1977-08-01), Vann et al.
patent: 5188180 (1993-02-01), Jennings
patent: 5188181 (1993-02-01), Brammer et al.
Brochure entitled "Baker Oil Tools Safety Systems--The Leader in Completion Technology.", Dec., 1992.
Brochure entitled "Baker Oil Tools Flow Control Systems--People and Products Providing Solutions for Completions, Workovers and Fishing", Mar., 1994.

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