Polymer flooding mechanism

Polymer flooding is done by injecting water by adding a certain amount of high molecular weight polyacrylamide, increasing the viscosity of water injection to improve Food dehydrator mobility ratio. Injected polymer solution has a high viscosity and by the oil after high residual resistance factor having a viscoelastic effect and so on. The higher the viscosity,
Residual resistance factor greater degree of displacement relative to the smaller streams, flooding phase is the phase displacement mobility ratio is smaller, expanded polymer flooding reservoir sweep efficiency of macro-and micro-greater role, harvesting rate increased the higher the value. Surfactant flooding mechanism surfactant flooding is done by injecting water and adding a certain amount of a surfactant to reduce interfacial tension, thereby displacing waterflood residual oil, to further reduce the residual oil equipment, improve oil displacement efficiency. The lower the interfacial tension, reduce the magnitude of residual oil saturation greater. Enhancing oil recovery efficiency and greater magnitude.