Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2011-03-01
2011-03-01
Kugel, Timothy J. (Department: 1765)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C166S305100, C507S211000
Reexamination Certificate
active
07897546
ABSTRACT:
This invention is directed to a composition comprising encapsulated expandable polymeric microparticles including expandable base microparticles encapsulated in a shell of at least one layer of a labile or degradable encapsulation material. The encapsulated microparticles have an unexpanded volume average particle size diameter of from about 0.05 to about 5,000 microns. The invention is further directed to the use of the composition for modifying the permeability of subterranean formations and increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.
REFERENCES:
patent: 3615972 (1971-10-01), Morehouse, Jr. et al.
patent: 3945956 (1976-03-01), Garner
patent: 4287308 (1981-09-01), Nakayama et al.
patent: 5465792 (1995-11-01), Dawson et al.
patent: 5536756 (1996-07-01), Kida et al.
patent: 5701955 (1997-12-01), Frampton
patent: 5735349 (1998-04-01), Dawson et al.
patent: 6143698 (2000-11-01), Murphey et al.
patent: 6235800 (2001-05-01), Kyuno et al.
patent: 6454003 (2002-09-01), Chang et al.
patent: 6569983 (2003-05-01), Treybig et al.
patent: 6616946 (2003-09-01), Meier et al.
patent: 6729402 (2004-05-01), Chang et al.
patent: 6984705 (2006-01-01), Chang et al.
patent: 7300973 (2007-11-01), Chang et al.
patent: 2003/0116317 (2003-06-01), Chang et al.
patent: 2008/0057310 (2008-03-01), Ohno et al.
patent: 2262117 (1993-06-01), None
patent: WO/94/27647 (1994-12-01), None
patent: WO/2007/091961 (2007-08-01), None
Chang Kin-Tai
Kurian Pious
Ramesh Manian
Reed Peter E.
Showalter Brett M.
Kugel Timothy J.
Martin Michael B.
Nalco Company
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