Lubricator valve with rotational flip-flap arm

Details Lubricator valve with rotational flip-flap arm Lubricator valve with rotational flip-flap arm

2006-11-27

2010-02-23

Gay, Jennifer H (Department: 3676)

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

C166S321000, C166S386000

Reexamination Certificate

active

07665529

ABSTRACT:
An improved lubricator valve arrangement for use within a wellbore to allow the passage of tools, such as perforating guns and the like, into the wellbore while it is live. The inclusion of two, independently controllable flapper-type safety valves within the lubricator valve will permit coordinated testing of fluid pressure both above and below the lubricator valve. The upper flapper valve includes a rotational flip-flap arm arrangement to positively open and close the upper flapper valve. The lower flapper valve is equipped with an integrated poppet-style pressure equalizing valve to allow the lower flapper valve to be opened more easily. The direction of opening of the flapper valves precludes or reduces the risk debris-related problems that might prevent or hinder opening of the flapper valves.

REFERENCES:
patent: 4476933 (1984-10-01), Brooks
patent: 4605070 (1986-08-01), Morris
patent: 4846281 (1989-07-01), Clary et al.
patent: 4926945 (1990-05-01), Pringle et al.
patent: 5343955 (1994-09-01), Williams
patent: 5857523 (1999-01-01), Edwards
patent: 6015014 (2000-01-01), Macleod et al.
patent: 6095247 (2000-08-01), Streich et al.
patent: 6250383 (2001-06-01), Patel
patent: 6457520 (2002-10-01), MacKenzie et al.
patent: 6644408 (2003-11-01), Ives
patent: 6705593 (2004-03-01), Deaton
patent: 2003/0173091 (2003-09-01), Horne et al.
patent: 2005/0224234 (2005-10-01), Drummond

Affiliated with

Also associated with

Rating

Lubricator valve with rotational flip-flap arm does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lubricator valve with rotational flip-flap arm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lubricator valve with rotational flip-flap arm will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4195615