Flapper mount for well safety valve

Details Flapper mount for well safety valve Flapper mount for well safety valve

1990-04-16

1991-01-22

Dang, Hoang C.

Wells

Valves, closures or changeable restrictors

Fluid operated

166322, 166332, 251298, 251303, E21B 3410

Patent

active

049863584

ABSTRACT:
A one-piece flapper mount for a wireline retrievable hydraulic piston actuated wrap-around flapper safety valve. The flapper mount has opposing openings between the valve seat and the nose seal and the openings are sized for insertion of the flapper valve and nose seal with support ribs between the openings. The single piece construction allows setting and retrieving the safety valve in a single trip. The one-piece mount also has the advantage of ease of orientation of coacting parts.

REFERENCES:
patent: 3815619 (1974-06-01), Ross et al.
patent: 4457376 (1984-07-01), Carmody et al.
patent: 4531587 (1985-07-01), Fineberg
patent: 4776400 (1988-10-01), Jacob et al.
patent: 4854387 (1989-08-01), Pringle
patent: 4926945 (1990-05-01), Pringle et al.

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