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U.S. Department of Energy
Office of Scientific and Technical Information

Surfactant waterflood method for the recovery of oil

Patent ·
OSTI ID:5903472
An improved surfactant waterflood method for the recovery of oil from a subterranean reservoir utilizing an anionic surface-active agent wherein an aqueous postflush slug containing a nonionic solubilizer is employed to minimize retention of the surfaceactive agent in the reservoir matrix.
Assignee:
Texaco Inc
Patent Number(s):
US 4276933
OSTI ID:
5903472
Country of Publication:
United States
Language:
English