Wells – Processes – Cyclic injection then production of a single well
Reexamination Certificate
2011-08-02
2011-08-02
Thompson, Kenneth (Department: 3672)
Wells
Processes
Cyclic injection then production of a single well
C166S308100, C166S372000, C166S068000, C166S105000
Reexamination Certificate
active
07987908
ABSTRACT:
Embodiments of the present invention include methods and apparatus for treating a formation with fluid using a downhole progressive cavity pump (“PCP”). In one aspect, the direction of the PCP is reversible to pump treatment fluid into the formation. In another aspect, two or more PCP's are disposed downhole and reversible to allow a chemical reaction downhole prior to the treatment fluid entering the formation. In yet another aspect, embodiments of the present invention provide a method of flowing treatment fluid downhole using one or more downhole PCP's. Treatment of the formation with the fluid and production of hydrocarbon fluid from the formation may both be conducted using the same downhole PCP operating in opposite rotational directions. In an alternate embodiment, one or more downhole PCP's may be utilized in tandem with one or more surface pumps.
REFERENCES:
patent: 1892217 (1932-12-01), Moineau
patent: 2693854 (1954-11-01), Abendroth
patent: 5295393 (1994-03-01), Thiercelin
patent: 5697678 (1997-12-01), Mills
patent: 6079491 (2000-06-01), Stuebinger et al.
patent: 6358027 (2002-03-01), Lane
patent: 6439310 (2002-08-01), Scott, III et al.
patent: 7337851 (2008-03-01), Hall et al.
patent: 2003/0146001 (2003-08-01), Hosie et al.
patent: 2005/0047944 (2005-03-01), Howard
patent: WO 03/036016 (2003-05-01), None
patent: WO 03/042496 (2003-05-01), None
GB Examination Report for GB0720858.0 dated Mar. 2, 2010.
International Search Report for International Patent Application No. PCT/US2006/015384 dated Aug. 9, 2006.
Canadian Office Action for Application No. 2,605,914 dated Jul. 15, 2010.
Weatherford “Progressing Cavity Pumps” brochure, 1998.
Hutchins Cathleen R
Patterson & Sheridan LLP
Thompson Kenneth
Weatherford / Lamb, Inc.
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