Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2008-01-04
2010-11-23
Gulakowski, Randy (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C525S330300
Reexamination Certificate
active
07838468
ABSTRACT:
A clayish subterranean formation, such as may be encountered in rock surrounding a well bore during hydrocarbon recovery operations may be stabilized with relatively high molecular weight acid ammonium salts of an imide of polymaleic anhydride. The salts may be unneutralized or partially neutralized. The invention is particularly relevant to hydraulic fracturing fluids used in enhanced oil recovery. The compositions herein are made in the presence of a reactive solvent, such as a polyalkylene glycol, e.g. polyethylene glycol. The compositions of this invention are more environmentally friendly than some current technology.
REFERENCES:
patent: 3920698 (1975-11-01), Haemmerle et al.
patent: 3941808 (1976-03-01), Pratt
patent: 3957658 (1976-05-01), Chiesa et al.
patent: 4366074 (1982-12-01), McLaughlin et al.
patent: 4532052 (1985-07-01), Weaver et al.
patent: 4812244 (1989-03-01), Lawson et al.
patent: 5160642 (1992-11-01), Schield et al.
patent: 6287458 (2001-09-01), Lawrence
patent: 7284610 (2007-10-01), Poelker et al.
patent: 2004/0235677 (2004-11-01), Nguyen et al.
patent: 2005/0126782 (2005-06-01), Poelker et al.
Clay Master-5C Product Information, BJ Services Company, May 1996, pp. 1-2.
Clay Treat-3C Product Information, BJ Services Company, May 1996, pp. 1-2.
Aquet Ay 80 Clay Stabilizer Product Data, Baker Hughes, Feb. 1999, p. 1.
FSA-1 Product Information, BJ Services Company, Jul. 24, 2000, pp. 1-2.
Ammonium Chloride Product Information, BJ Services Company, Oct. 31, 2000, pp. 1-2.
Halliburton's Solution to Highly Reactive Clay Formation Challenges, PetroMin., Jul. 2003, pp. 52-53.
United National Environmental Programme, 3-Aminopropyldimethylamine: CAS No. 109-55-7 [Internet], OECD Screening Information Data Sheets (SIDS) (cited Sep. 2003) Available from http://ww.chem.unep.ch/irpct/sids/oecdsids/109556.pdf.
T. Tiguchi; Thesis: Chapter Two: Review of Previous Work, University of Durham, Stockton-on-Tees, United Kingdom, Available from: http://www.durac.uk/toru/higuchi/wfi/toru—thesis/CHAPTER%202.doc.
McMahon JoAnn
Poelker David J.
Schield John A.
Baker Hughes Incorporated
Gulakowski Randy
Mossman Kumar & Tyler PC
Toscano Alicia M
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