A New Method to Calculate the Seepage Law of ASP Flooding

doi:10.11885/j.issn.1674-5086.2021.10.31.01

Abstract

Abstract: In order to break through the bottleneck of the study on the seepage law of ASP flooding, the effect of viscosity change on the seepage law is replaced by the change of fluidity, the equation of seepage motion is simplified, and the parameters of the equation are fitted with the experimental data of steady-state method and unsteady method. The two-phase fluidity curve can be processed by this method, and the calculation equation of dimensionless production fluid and oil recovery index is derived considering the fluidity change. The method is proved to be simple and accurate by example verification and comparison. The advantage of this method is that it avoids the influence of complex physical and chemical changes on fluid viscosity in ASP flooding, directly reflects fluid flow capacity, and provides a new idea and method for the study of ASP flooding seepage law.

Key words: ASP flooding, composite flooding, seepage law, methods, mobility, relative permeability curve

CLC Number:

TE21

WEI Hongtao, ZHOU Qing, ZHANG Xiaolei, LIU Zhongyuan. A New Method to Calculate the Seepage Law of ASP Flooding[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(2): 89-96.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2021.10.31.01

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