Tubing fill and testing valve

Details Tubing fill and testing valve Tubing fill and testing valve

2006-06-20

2006-06-20

Bagnell, David (Department: 3672)

Wells

Valves, closures or changeable restrictors

Longitudinally movable operator

C166S321000, C166S334100, C166S374000

Reexamination Certificate

active

07063156

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: 3958633 (1976-05-01), Britch et al.
patent: 4033429 (1977-07-01), Farr
patent: 4100969 (1978-07-01), Randermann, Jr.
patent: 4122898 (1978-10-01), Nelson
patent: 4134455 (1979-01-01), Read
patent: 4694903 (1987-09-01), Ringgenberg
patent: 6568470 (2003-05-01), Goodson et al.
patent: 2003/0121665 (2003-07-01), Trott et al.
patent: 0250144 (1987-12-01), None
patent: 0250144 (1987-12-01), None
patent: 2318375 (1998-04-01), None
patent: 2372770 (2002-09-01), None

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