ASP flooding mechanism

ASP flooding is added to the water by injecting ~ quantitative surfactants, alkali and high molecular weight polymers, a significant reduction in interfacial tension, increasing the viscosity of injected water, thereby reducing the Oil processing mobility ratio, expand the reservoir macro-and micro-swept volume, further flooding waterflood residual oil, a significant reduction in residual oil saturation, improve oil displacement efficiency and oil recovery. The lower the interfacial tension, reduce the magnitude of residual Briquette machine greater efficiency and enhancing oil recovery, the greater the amplitude. Foam flooding mechanism 'foam flooding in ASP flooding developed on the basis of an enhanced oil recovery method, which is injected into the water by adding a certain amount of a surfactant, alkali, high relative points in the quality of the polymer and gas. It is compared with the ASP flooding can not only improve oil displacement efficiency. Swept volume can be further expanded to increase recovery.