Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Oil recovery by fluorochemical surfactant waterflooding

Patent ·
OSTI ID:6325145
The instant invention relates to the recovery of oil from subterranean oil reservoirs involving the injection of an aqueous based liquid containing a fluorochemical surfactant possessing an oleophobic-hydrophobic fluoroaliphatic group, a hydrophilic group and an oleophilic group, optionally in conjugation with a conventional enhanced oil recovery surfactant.
Assignee:
Ciba-Geigy Corporation
Patent Number(s):
US 4460791
OSTI ID:
6325145
Country of Publication:
United States
Language:
English