Tubing hanger with hydraulically energized metal annular seal wi

Details Tubing hanger with hydraulically energized metal annular seal wi Tubing hanger with hydraulically energized metal annular seal wi

1996-05-28

1998-04-07

Dang, Hoang C.

Wells

Above ground apparatus

Suspension means

166115, 166123, 166208, 285140, E21B 3304

Patent

active

057353441

ABSTRACT:
A tubing hanger has an exterior surface and carries a seal arranged inwardly of this surface. The seal has two sealing portions and, when the hanger is located in a wellhead, the seal is engaged by an activating device operated by a piston to force one sealing portion into engagement with the tubing hanger and the other portion into engagement with the wellhead. The movement of the piston can be reversed to break the seals.

REFERENCES:
patent: 4665979 (1987-05-01), Boehm, Jr.
patent: 4790572 (1988-12-01), Slyker
patent: 5307879 (1994-05-01), Kent
patent: 5333692 (1994-08-01), Baugh et al.
patent: 5372201 (1994-12-01), Milberger

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