Method and apparatus for pumping wells with a sealing fluid...

Details Method and apparatus for pumping wells with a sealing fluid... Method and apparatus for pumping wells with a sealing fluid...

2007-03-20

2007-03-20

Bagnell, David (Department: 3672)

Wells

Processes

Producing the well

C166S369000, C166S068000, C417S056000

Reexamination Certificate

active

11446985

ABSTRACT:
Liquid is lifted from a well by a fluid displacement device which moves within a production tubing and maintains a seal against the production tubing during movement. The fluid displacement device is moved up and down within the production tubing between the well bottom and the earth surface by applying gas to create opposite relative pressure differentials across the fluid displacement device. Preferably the pressure differentials are obtained from gas supplied from the well at natural formation pressure.

REFERENCES:
patent: 2941537 (1960-06-01), Watkins
patent: 3090316 (1963-05-01), Montgomery
patent: 3456727 (1969-07-01), Nettles
patent: 4036254 (1977-07-01), Alcalde Pecero
patent: 4216026 (1980-08-01), Scott
patent: 4416703 (1983-11-01), Scott
patent: 4502843 (1985-03-01), Martin
patent: 4629004 (1986-12-01), Griffin
patent: 4923372 (1990-05-01), Ferguson et al.
patent: 5006046 (1991-04-01), Buckman et al.
patent: 5868554 (1999-02-01), Giacomino et al.
patent: 5911278 (1999-06-01), Reitz
patent: 6148923 (2000-11-01), Casey
patent: 6293340 (2001-09-01), Wu
patent: 6637510 (2003-10-01), Lee
patent: 6688385 (2004-02-01), Moe
patent: 6705404 (2004-03-01), Bosley
patent: 6851480 (2005-02-01), Swoyer et al.
patent: 7021387 (2006-04-01), Lee
patent: 2004/0216886 (2004-11-01), Rogers, Jr.

Affiliated with

Also associated with

Rating

Method and apparatus for pumping wells with a sealing fluid... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for pumping wells with a sealing fluid..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for pumping wells with a sealing fluid... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3782013