Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2008-01-19
2009-12-08
Kugel, Timothy J. (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S255000, C252S576000
Reexamination Certificate
active
07629299
ABSTRACT:
A method of recovering crude oil from a subterranean hydrocarbon containing formation which comprises (a) injecting into said formation an aqueous solution containing an effective amount alkali metal, alkaline-earth or ammonium salts of alcohol ether sulfonates derived from unsaturated alcohol ethers, and (b) displacing said solution into one or more injection wells and recovering the oil from one or more production wells. The unsaturated alkoxylated alcohol contain various amounts of ethylene oxide, propylene oxide and butylene oxides elected to optimize their interfacial properties with different types of crude oil with different brines.
REFERENCES:
patent: 4862963 (1989-09-01), Gregory
patent: 4865774 (1989-09-01), Fabry et al.
patent: 5075042 (1991-12-01), Allison et al.
Cayais, et al. Modeling Crude Oils for Low Interfacial Tension SPE J (Dec. 1976) p. 351-387.
Felber, Betty Selected US Dept of Energy's for Technology Applications SPE 84904 (2003).
Pitts, et al. Alkaline-Surfactant- Polymer Flood of the Tanner Field SPE 10004 (2006).
Berger Christie Huimin
Berger Paul Daniel
Cao Guohua
Hsu Oliver
Admasu Atnaf
Kugel Timothy J.
Oil Chem Technologies
LandOfFree
Process for recovering residual oil employing alcohol ether... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for recovering residual oil employing alcohol ether..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for recovering residual oil employing alcohol ether... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4111911