Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Recovering enhanced oil recovery surfactants by temperature cycling

Recovering enhanced oil recovery surfactants by temperature cycling

US Patent 5401425 · Granted Mar 28, 1995

Estimated economic value: $18,548,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Chemical delivery apparatus, system, and method for hydrocarbon production2015
Heat generating system for enhancing oil recovery2015
Enhanced oil recovery surfactant formulation and method of making the same2012
Method for enhancing oil recovery with an improved oil recovery surfactant2010
Method for enhancing the retention efficiency of treatment chemicals in subterra2006
Microemulsion method for improving the injectivity of a well1992
Alkoxylated surfactant system for heavy oil reservoirs1992
Method of using urea as a sacrificial agent for surfactants in enhanced oil reco1991
Use of taurine additives in enhanced oil recovery with anionic surfactants1990
Adding lignosulfonate to caustic floods to shift optimal salinity to a higher sa1988
Method of extracting and reutilizing surfactants from emulsions1985