期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：5
页码：1-6
DOI：10.1088/1755-1315/252/5/052070
出版社：IOP Publishing
摘要：In this paper, numerical simulation technology was used to optimize the injection of polymer/surfactant binary flooding system. The results of the study show that: (1) Under the conditions of reservoir physical properties studied, the polymer surfactant binary complex system has improved oil recovery by 18.9%, 5.6%, and 7.3, respectively, over water flooding, polymer flooding, and surface active flooding. (2) The results of the study show that the later the binary flooding time is, the lower the recovery factor is, but the overall impact is smaller; (3) When the pre-slug volume is 0.05 PV, the binary flooding development effect is optimal; (4) The concentration of polymer and surfactant was calculated and analyzed. Under the reservoir physical properties studied, the polymer concentration was 1500 mg/L and the surfactant concentration was 0.3%.
