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

Process for tertiary oil recovery using tall oil pitch

Patent ·
OSTI ID:6931023

A process and compositions for enhancing the recovery of acid crudes are disclosed. The process involves injecting caustic solutions into the reservoir to maintain a pH of 11 to 13. The fluid contains an effective amount of multivalent cation for inhibiting alkaline silica dissolution with the reservoir. A tall oil pitch soap is added as a polymeric mobility control agent. (DMC)

DOE Contract Number:
AC03-76SF00098
Assignee:
Dept. of Energy
Patent Number(s):
None
Application Number:
ON: DE84011121
OSTI ID:
6931023
Country of Publication:
United States
Language:
English