Well tubing anchor with automatic delay and method of installati

Details Well tubing anchor with automatic delay and method of installati Well tubing anchor with automatic delay and method of installati

1975-07-14

1976-08-31

Novosad, Stephen J.

Wells

Valves, closures or changeable restrictors

166207, 166212, 166217, E21B 2304, E21B 4310

Patent

active

039774732

ABSTRACT:
A well tubing anchor incorporates means to delay movement of slips relative to a wedge surface until predetermined well fluid pressure is exerted on a piston or pistons that urge the slips axially.

REFERENCES:
patent: 2350973 (1944-06-01), Brumleu et al.
patent: 2735497 (1956-02-01), Brumleu et al.
patent: 3002564 (1961-10-01), Baker
patent: 3011557 (1961-12-01), Conrad
patent: 3180419 (1965-04-01), Cochran et al.
patent: 3454092 (1969-07-01), Page, Jr.
patent: 3528500 (1970-09-01), Brown

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