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Compositional Analysis and Adsorption Performance of Surfactants Used for Combined Chemical Flooding
Author(s) -
Kang Wanli,
Zhang Hongyan,
Meng Lingwei,
Liu Shuren
Publication year - 2010
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201090077
Subject(s) - pulmonary surfactant , chemistry , adsorption , critical micelle concentration , lipophilicity , chemical engineering , sulfonate , micelle , chromatography , inorganic chemistry , environmental chemistry , organic chemistry , sodium , aqueous solution , biochemistry , engineering
Adsorption of surfactants on reservoir sands in a combined chemical flooding process was investigated using a microcosmic method in order to reveal the effects of surfactant composition on their adsorption. Alkylbenzenesulfonate types of surfactant have been used in this study. The experimental results indicate that surfactant adsorption on the sands heavily depends on its lipophilicity, and the adsorption quantity increases with increasing the lipophilic chain length of the surfactant. It was found that the saturated adsorption could be reached when the concentration of the surfactant was near the critical micelle concentration (CMC). For oilfield applications, the molecular ion peak of the alkylbenzene‐sulfonate type surfactants should concentrate at around C 18 .