Liner hanger with retrievable ball valve seat

Details Liner hanger with retrievable ball valve seat Liner hanger with retrievable ball valve seat

1988-05-09

1989-05-09

Dang, Hoang C.

Wells

Processes

Placing or shifting well part

166212, 166238, 166239, 166317, 166328, 166386, E21B 2304, E21B 3410

Patent

active

048280372

ABSTRACT:
In a hydraulically operated setting tool for liner hangers used in a well bore, a norally countracted ball seat formed in the setting tool mandrel by contracted and elongated finger members. Upon seating a ball member in the ball seat, applied pressure is used to set the hydraulic setting tool. After setting the hydraulic setting tool, the ball seat is longitudinally movable so that the finger members can expand to a full opening condition in a recess and release the ball member and so that the finger members are also retrievable with the setting tool.

REFERENCES:
patent: Re31881 (1985-05-01), Lindsey, Jr.
patent: 3136364 (1964-06-01), Myers
patent: 3189095 (1965-06-01), De Rochemont
patent: 3211226 (1965-10-01), Myers et al.
patent: 3239009 (1966-03-01), Leutwyler
patent: 3306365 (1967-02-01), Kammerer, Jr.
patent: 4510994 (1985-04-01), Pringle
patent: 4512406 (1985-04-01), Vann et al.
patent: 4712614 (1987-12-01), Allwin et al.
patent: 4729432 (1988-03-01), Helms
The P-1 Landing Sub of Texas Iron Works (TIW), p. 6133 of Lee 1986-1987 "Composite Catalog of Oil Field Equipment & Services".

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