Effect of Emulation on Displacement of Residual Oil Film Following Waterflooding: Experiment and Evaluation

Abstract

Abstract: Emulsion ability between oil displacement agent and crude oil has a great influence on oil displacement efficiency of chemical flooding. This paper presents an artificial residual oil film model for screening activity of oil displacement agent and testing the effect on the oil film displacement, makes a quantitative of the emulsifying effect and provides the reasonable index for evaluating the emulsion displacement ability of surfactant. The experimental results show that the the emulsion process between oil displacement agent and crude oil can strip oil film effctivelly, suitable for further enhance of sweep efficiency at stage of high water cut. There exists very good positive correlation between the emulsion ability and oil film sweep efficiency. It is indicated that interfacial tension is not the only key influencing factor for evaluating the emulsion ability, which provides a further improvement for the mechanism of emulsion to enhance the microscopic oil displacement efficiency

CLC Number:

TE357.43

SUN Yingying1, YUE Xiangan2, ZHANG Lijuan2, GUO Zhi3, WANG Ping3, LIU Wanlu1. Effect of Emulation on Displacement of Residual Oil Film Following Waterflooding: Experiment and Evaluation[J]. , 2014, 35(1): 1-1.

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Effect of Emulation on Displacement of Residual Oil Film Following Waterflooding: Experiment and Evaluation

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