Tubing annulus plug valve

Details Tubing annulus plug valve Tubing annulus plug valve

2005-09-21

2008-08-05

Bates, Zakiya W. (Department: 3676)

Wells

Submerged well

Wellhead

C166S075140, C166S086100, C166S088100, C166S324000

Reexamination Certificate

active

07407011

ABSTRACT:
A tubing hanger lands in a tubular outer wellhead member and supports a string of production tubing. The tubing hanger has a production passage for communicating with the interior of the production tubing and an annulus passage for communicating with a tubing annulus on the exterior of the production tubing. An access port leads from the annulus passage to an exterior portion of the body for communicating the tubing annulus with the annulus passage. A valve stem is movable along an axis of the annulus passage between a closed position, blocking the access port, and an open position, exposing the annulus port. A pressure equalizing passage extends from the annulus passage above the valve stem to the annulus passage below the valve stem.

REFERENCES:
patent: 5769162 (1998-06-01), Bartlett et al.
patent: 6763891 (2004-07-01), Humphrey et al.
patent: 6840323 (2005-01-01), Fenton et al.
patent: 2243383 (1991-10-01), None
patent: 2275952 (1994-09-01), None
patent: 2291085 (1996-01-01), None
patent: 2311544 (1997-10-01), None

Affiliated with

Also associated with

Rating

Tubing annulus plug valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tubing annulus plug valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tubing annulus plug valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4013827