Tubing fill and testing valve

Details Tubing fill and testing valve Tubing fill and testing valve

2007-09-11

2007-09-11

Bagnell, David (Department: 3672)

Wells

Valves, closures or changeable restrictors

Longitudinally movable operator

C166S321000, C166S334100, C166S374000

Reexamination Certificate

active

11308771

ABSTRACT:
The present invention provides for a valve in a tubing string that allows the tubing string to fill with well fluids as the string is assembled and lowered into a well bore, but can be used to check pressure integrity of the tubing string during various stages of the assembly.

REFERENCES:
patent: 4100969 (1978-07-01), Randermann, Jr.
patent: 4378847 (1983-04-01), Patel et al.
patent: 4694903 (1987-09-01), Ringgenberg
patent: 6125930 (2000-10-01), Moyes
patent: 6568470 (2003-05-01), Goodson et al.
patent: 6957703 (2005-10-01), Trott et al.

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