摘要
随着油田的开采,大多数区块已经进入高含水期,水驱后地层中含油大量的剩余油,因此,开展水驱后提高采收率具有重大意义。由于三元复合体系中存在结垢问题,通过室内实验的方法,优选出无碱二元体系,对比不同类型表面活性剂/聚合物体系的界面张力、润湿反转、驱油效果。表面活性剂与聚合物可以使油水界面张力下降,实验表明,不同类型的表面活性剂组成的无碱二元体系对驱油效果存在较大的差异。
With the exploitation of oil fields, the vast oil block of has entered a high water cut stage, the remaining oil is also very rich in the formation after water flooding, thus,initiating enhanced oil recovery after water flooding is of great significance. Interfacial tension, wettability alteration and displacement effect of polymer-surfactant system with different kinds of surfactants were studied by indoor experiment. The system of surfactant and polymer can require low interfacial tension, experiment shows there is a big difference among the effect of different kinds of surfactant of polymer-surfactant system.
出处
《化学工程师》
CAS
2017年第2期50-52,共3页
Chemical Engineer
关键词
无碱二元体系
界面张力
物理模拟
驱油
polymer-surfactant system
interfacial tension
physical simulation
oil displacement
