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U.S. Department of Energy
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Tertiary oil recovery processes research at the University of Texas. Final report, October 1980-December 1984

Technical Report ·
OSTI ID:5536040
This report summarizes four years of research jointly funded by the Department of Energy and by a number of companies all interested in enhanced oil recovery using micellar/polymer processes. The fundamental thrust of the research was to study the influence of surfactant structure on those physical chemical aspects such as oil/water interfacial tensions and adsorption which have an impact on the efficiency of the flooding process. The role of surfactant structure is therefore the unifying theme which links all of the various projects described here. In many cases we perceived the need to carry out studies using surfactant systems which were essentially pure. During the middle and latter phases of this project that part of our research team responsible for the synthesis of pure surfactants developed methods which provided surfactants of high quality. Tests using various techniques (NMR, phase behavior, etc.) were carried out to ensure their quality. Contents of the this report include extended summary of research accomplishments, publications produced from research, postdoctoral and graduate participants, and the following research reports; (1) alcohol-free microemulsions; (2) adsorption of surfactants from dilute solutions; (3) adsorption of surfactant mixtures; (4) optimum surfactant hydrocarbon tail structures; (5) synthesis and performance of linear monisomeric ethylene oxide sulfonate; (6) adsorption from microemulsions; (7) monomer-micellar equilibria; (8) surfactant chromatography; (9) partitioning of surfactant between phases; and (10) spontaneous emulsification and diffusion in microemulsions.
Research Organization:
Texas Univ., Austin (USA)
DOE Contract Number:
AS19-80BC10345
OSTI ID:
5536040
Report Number(s):
DOE/BC/10345-6; ON: DE85000139
Country of Publication:
United States
Language:
English