石油化工高等学校学报2017，Vol.30Issue(1)：18-22,5.DOI:10.3969/j.issn.1006-396X.2017.01.004
三元复合驱微观剩余油驱替机理及动用比例研究
Mechanism and Utilization Ratio of Microscopicresidual Oil Displacement in ASP Flooding
摘要
Abstract
The effect of interfacial tension on the displacement efficiency of the ASP system was analyzed by the natural core and microscopic visual displacement experiment.The microscopic residual oil was classified,and the microscopic mechanism of the residual oil driven by the ASP system was studied emphatically.The results show that the lower the interfacial tension is, the higher the recovery rate is,and the recovery rate is up to 23.88%.The remaining oil is divided into 5 types,including cluster type,columnar type,dead-end type,droplets type and oil film type.The proportion of the remaining oil displaced in the ASP flooding increases with the decrease of the interfacial tension.The proportion of cluster residual oil displaced is the largest and the proportion of the dead-end residual oil is the smallest.关键词
三元复合驱/界面张力/驱油效果/微观剩余油/驱替机理Key words
Alkaline/Surfactant/Polymer(ASP)Flooding/Interfacial tension/Oil displacement effect/Microscopic residual oil/Displacement mechanism分类
能源科技引用本文复制引用
殷代印,房雨佳..三元复合驱微观剩余油驱替机理及动用比例研究[J].石油化工高等学校学报,2017,30(1):18-22,5.基金项目
国家自然科学基金"低渗透油藏表面活性剂驱微乳液渗流机理及数值模拟研究"(51474071). （51474071）
