Wireline tool connector with wellbore fluid shutoff valve

Details Wireline tool connector with wellbore fluid shutoff valve Wireline tool connector with wellbore fluid shutoff valve

1987-02-25

1988-07-26

Novosad, Stephen J.

Wells

With electrical means

166325, 439194, E21B 4700, H02G 906

Patent

active

047594063

ABSTRACT:
A connector for attaching a downhole tool to the end of a tubing string insertable in a wellbore includes a one-way valve to permit flow of fluids from the tubing string into the wellbore but to prevent the flow of fluids in the opposite direction. An electrical cable extends through central passages formed in the one-way valve and a frangible coupling which will separate the connector from the tool if the tool becomes stuck in the wellbore.

REFERENCES:
patent: 2765146 (1956-10-01), Williams, Jr.
patent: 3401749 (1968-09-01), Daniel
patent: 3989330 (1976-11-01), Cullen et al.
patent: 4413958 (1983-11-01), Webb
patent: 4570709 (1986-02-01), Wittrisch
patent: 4588243 (1986-05-01), Ramsey et al.
patent: 4624308 (1986-11-01), White
patent: 4706744 (1987-11-01), Smith et al.

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