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Phase behavior studies of two model surfactant systems

Journal Article · · SPEJ, Soc. Pet. Eng. J.; (United States)
DOI:https://doi.org/10.2118/8984-PA· OSTI ID:5238342
Phase behavior studies were carried out for two systems containing pure surfactants but exhibiting behavior similar to that of commercial petroleum sulfonates. One system contained the isomerically pure surfactant sodium-8-phenyl-n-hexadecyl-n-sulfonate (Texas 1). The other contained sodium dodecyl sulfate (SDS). Additional components used in both systems were various pure short-chain alcohols, NaCl brine and n-decane. The middle microemulsion phase was found to be oil continuous close to the upper phase boundary and water continuous close to the lower phase boundary. Both the Texas 1 and SDS systems showed similar behavior in that the middle microemulsion phase was observed over the entire range of surfactant concentrations studied. 26 refs.
Research Organization:
Carnegie-Mellon Univ, Pittsburgh, Pa, USA
OSTI ID:
5238342
Journal Information:
SPEJ, Soc. Pet. Eng. J.; (United States), Journal Name: SPEJ, Soc. Pet. Eng. J.; (United States) Vol. 22:1; ISSN SSPJD
Country of Publication:
United States
Language:
English