Well treating method using an indexing automatic fill-up float v

Details Well treating method using an indexing automatic fill-up float v Well treating method using an indexing automatic fill-up float v

1975-07-18

1976-05-18

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166224R, 137515, E21B 3314, E21B 3316

Patent

active

039571149

ABSTRACT:
A valve for repetitively allowing and preventing upward fluid flow through a casing string. The valve is convertible from a locked open position permitting reverse upward fluid flow therethrough to a check valve position preventing upward fluid flow therethrough by flowing fluid downwardly through the casing to actuate an indexing J-slot mechanism interconnecting the spring-loaded valve member and the valve body assembly. The valve may be recycled to the locked open position from the check valve position an unlimited number of times through the flowing of fluid in a forward direction downwardly through the casing string.

REFERENCES:
patent: 1631509 (1927-06-01), Baker
patent: 2724443 (1955-11-01), Baker
patent: 2771091 (1956-11-01), Baker et al.
patent: 2858838 (1958-11-01), Scaramucci
patent: 2919709 (1960-01-01), Schwegman
patent: 3385370 (1968-05-01), Knox et al.
patent: 3385372 (1968-05-01), Knox
patent: 3409078 (1968-11-01), Knox et al.
patent: 3807428 (1974-04-01), Watkins et al.
patent: 3845784 (1974-11-01), Sullivan

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