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Citation: ZHANG Yue, ZHANG Gao-Yong, WANG Pei-Wei, NIU Jin-Ping, GUAN Jing-Cai, GU Hui-Xian. The Interface Behavior and Enhanced Oil Recovery Mechanism of Heavy Alkylbenzene Sulfonates[J]. Acta Physico-Chimica Sinica, ;2005, 21(02): 161-165. doi: 10.3866/PKU.WHXB20050210 shu

The Interface Behavior and Enhanced Oil Recovery Mechanism of Heavy Alkylbenzene Sulfonates

1.
China Research Institute of Daily Chemical Industry, State Research Center of Surfactant Engineering, Taiyuan　030001

Received Date: 18 June 2004
Available Online: 15 February 2005

Heavy alkylbenzene sulfonates (HABS) have been applied in enhanced oil recovery(EOR) for many years, but the effect of oil flooding is quiet different as variety of HABS composition. In this study, HABS was separated into 6 group-types with column chromatography, and dialkylbenzene, polyphenylalkane, monoalkylbenzene, alkylnaphthalene were sulfonated and purified. The interfacial tension (IFT) and the synergistic effect between these components were studied，and the mechanism and rules of the synergistic effect between HABS components were obtained from the EACN value of oil and the nmin values of HABS components. Moreover, the rules were further confirmed by the synergistic effect between LAS and the HABS components.
- Heavy alkylbenzene sulfonates(HAS);Equivalent alkane carbon number(EACN);Enhanced oil recovery;Interfacial tension
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