Aqueous surfactant systems for oil recovery

Journal Article · Thu Feb 01 04:00:00 EST 1973 · J. Pet. Technol.; (United States)

DOI:https://doi.org/10.2118/3798-PA· OSTI ID:7301290

Hill, H J; Reisberg, J; Stegemeier, G L

This study proposed a method of tertiary recovery based on laboratory tests on Berea sandstone cores and on Tar Springs sandstone cores from the Benton field, Illinois, and developed guidelines for field tests which are discussed in a later article (French, M. S., et al, J. Petrol. Technol., February 1973, pp. 195--204). The surfactant used in the Berea and Tar Springs tests was a petroleum sulfonate consisting of a 70/30 concentration of molecular weights 470 and 380, respectively. In order to counteract the effect of barium, calcium, and magnesium ions on the surfactant's ability to reduce surface tension, a multivalent sequestering agent, sodium tripolyphosphate (Na/sub 5/P/sub 3/O/sub 10/) was used. Sulfonate adsorption was also reduced by the addition of sodium tripolyphosphate. The polymer, Dow Pusher 520, was added for mobility control, thereby reducing fingering and resultant emulsification of the oil. Eighty-five percent of the residual oil was recovered from a waterflooded Berea core.

• OSTI ID: 7301290
• Journal Information: J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 25; ISSN JPTJA
• Country of Publication: United States
• Language: English

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