Wells – Processes – Producing the well
Reexamination Certificate
2005-12-13
2005-12-13
Dang, Hoang (Department: 3672)
Wells
Processes
Producing the well
C166S050000, C166S068000, C166S105000
Reexamination Certificate
active
06973973
ABSTRACT:
The present invention generally relates to an apparatus and method for improving production from a wellbore. In one aspect, a downhole pump for use in a wellbore is provided. The downhole pump includes two or more chambers for the accumulation of formation fluids and a valve assembly for filling and venting gas to and from the two or more chambers. The downhole pump further includes a fluid passageway for connecting the two or more chambers to a production tube. In another aspect, a downhole pump including a chamber for the accumulation of formation fluids is provided. In another aspect, a method for improving production in a wellbore is provided. In yet another aspect, a method for improving production in a steam assisted gravity drainage operation is provided. Additionally, a pump system for use in a wellbore is provided.
REFERENCES:
patent: 3873238 (1975-03-01), Elfarr
patent: 4344485 (1982-08-01), Butler
patent: 4390061 (1983-06-01), Short
patent: 4727936 (1988-03-01), Mioduszewski et al.
patent: 4791990 (1988-12-01), Amani
patent: 5215146 (1993-06-01), Sanchez
patent: 5318124 (1994-06-01), Ong et al.
patent: 5373897 (1994-12-01), Skarvan
patent: 5735346 (1998-04-01), Brewer
patent: 5806598 (1998-09-01), Amani
patent: 5806599 (1998-09-01), Hisaw et al.
patent: 6021849 (2000-02-01), Averhoff
patent: 6257338 (2001-07-01), Kilgore
patent: 6354377 (2002-03-01), Averhoff
patent: 6619402 (2003-09-01), Amory et al.
patent: 2001/0023614 (2001-09-01), Tubel et al.
patent: 2002/0040785 (2002-04-01), Amani
patent: WO 98/37306 (1998-08-01), None
PCT International Search Report, International Application No. PCT/US 03/01744, dated Jun. 16, 2003.
Howard William F.
Lane William C.
Dang Hoang
Patterson & Sheridan LLP
Weatherford / Lamb, Inc.
LandOfFree
Gas operated pump for hydrocarbon wells does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas operated pump for hydrocarbon wells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas operated pump for hydrocarbon wells will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3510335