Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Surfactant waterflooding oil recovery method

Surfactant waterflooding oil recovery method

US Patent 4307782 · Granted Dec 29, 1981

Estimated economic value: $12,939,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Process for removing water from heavy crude oil1999
Glycol dehydration apparatus for natural gas1992
Method for decreasing mobility of dense carbon dioxide in subterranean formation1991
Adding lignosulfonate to caustic floods to shift optimal salinity to a higher sa1988
Method of improving conformance in steam floods with carboxylate steam foaming a1987
Method of improving conformance in steam floods with steam foaming agents1985
Method of extracting and reutilizing surfactants from emulsions using sulfonated1985
Method for restoring permeability of injection wells1984
Surfactant waterflooding enhanced oil recovery process1984
Surfactant flooding solution1984
Surfactant waterflooding enhanced oil recovery method using stabilized surfactan1982
Surfactant flooding oil recovery process1980