Research On Optimization Reasonable Injection Parameter Of The Polymer Flooding In Xing 1～2 Area

Polymer flooding is based on polymer oil displacement agent of an oil displacement method, also known as the polymer solution flooding,polymer water flooding, etc. Polymer flooding is one of the ways to enhance oil recovery(EOR). Polymer floodi ng technology is now large-scale promotion and application in daqing oil field, is to keep the continuous and stable yield, improve oilfield development important original technology.Aiming at east of xing1 ～ 2 area in Pu I1 ～ 3 adopts reasonable polymer flooding injection parameter optimization research. Because the reservoir of river development area is narrow small, low degree of channel sand control, in order to ensure a high degree of reservoir using,thoroughly studies the reasonable injection parameters of polymer flooding is necessary conditions to improve recovery. Different properties of the polymer injection parameters adaptive is also the main factors influencing the use conditions. Due to the influence of injection parameters on the recovery factor is not clear, the injection parameters of the reservoir properties of different adaptability, caused between the layers using difference is bigger, makes the block reservoir development effect is also different. Based on coring well data to determine the artificial core pressing parameters can meet the experimental conditions, can represent the real objective reservoir physical properties. Application compatibility with injection parameters template with different properties and single well injection concentration and reservoir using proportion of template matching relations, makes the displacement solution is more scientific and reasonable, at the same time makes tracking adjustment purpose to enhance injection parameters, reservoir adaptability.The article mainly east of xing 1 ～ 2 area in Pu I1 ～ 3 reservoir different reservoir properties and remaining oil distribution, reasonable matching of polymer injection to optimize parameters, the polymer injection block using high molecular weight polymer system, obtained the certain effect of polymer flooding development. Therefore, further improve the oil layer use condition, improve the effect of polymer flooding development, and guide the displacement solution of the preparation is of great significance.