Interfacial tension is the surface tension at the interface between two liquids. 界面张力是两种液体之间界面上的表面张力。
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。