Liner hanger with collapsible ball valve seat

Details Liner hanger with collapsible ball valve seat Liner hanger with collapsible ball valve seat

1988-05-16

1989-09-05

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166153, 166194, 166208, 166387, E21B 2300

Patent

active

048629669

ABSTRACT:
A selectively releasable valve in a wiper plug releasably attached to a hydraulic setting tool for a liner hanger in a well bore where the valve has an annular valve seat member having collapsible finger members for sealingly receiving a ball member. The valve seat member is movable under predetermined hydraulic pressure to shift and expand the finger members to release the ball member. The valve seat member is retained in the wiper plug.

REFERENCES:
patent: Re26085 (1966-09-01), Myers
patent: 3159219 (1964-12-01), Scott
patent: 3223170 (1965-12-01), Mott
patent: 4393931 (1983-07-01), Muse et al.
TIW Catalog, Type P-1 Landing Sub-Hydroset Packers, 7925/25.

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