Low interfacial tension and miscibility studies for surfactant tertiary oil recovery processes. Progress report, December 1, 1975--November 30, 1976
The objective of the research reported herein was to begin developing a basic understanding of the very low interfacial tensions between oil and water which must be achieved if tertiary oil recovery processes involving surfactants are to be successful. The basic approach has been to study the relationship between interfacial structure and interfacial tension. Observations with the polarizing microscope have shown that the lowest tensions occur when rather fluid intermediate phases of low birefringence form at the interface between the aqueous surfactant solution and the oil. To explain these observations, a theory of low interfacial tension has been developed based on consideration of phase separation in micellar solutions. Predictions of the theory are generally in agreement with experimental results.
- Research Organization:
- Carnegie-Mellon Univ., Pittsburgh, Pa. (USA)
- DOE Contract Number:
- EY-76-S-02-0018
- OSTI ID:
- 7350184
- Report Number(s):
- COO-0018-2
- Country of Publication:
- United States
- Language:
- English
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