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Title: 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
Resource Relation:
Patent File Date: Filed date 20 May 1982; Other Information: PAT-APPL-380372
Country of Publication:
United States
Language:
English