The Laboratory Experiment of Surfactant-polymer System in Enhancing Producible Oil Index 陕北石油秩序聚合物/表活剂二元复合驱室内驱油实验研究
ASP experiment practice in Daqing oil reserves had gotten preferable effect, which enhanced producible oil index by 20%. 大庆油田三元复合驱的应用在现场实践中取得了较好的效果,可以提高采收率20%左右。
Even if it cannot produce ultra low interfacial tension, its last producible oil index may equal that of APS. 再加上二元体系的粘度和弹性比三元体系的高很多,即使界面张力达不到超低值,总采收率也可以达到三元复合驱采收率值。
On the other hand, as a result of the addition of polymer, the system has a high viscidity, and it can get an advantageous mobility ratio, consequently it enhance producible oil index largely. 同时,由于聚合物的加入,这种体系又具有较高的粘度,可获得有利的流度比,从而大幅度地提高原油采收率。