Study On The Limit Of Tracking Adjustment For Polymer Flooding

In recent years,with the continuous development of oilfield development,oil field development into the high water content,high cost,high degree of difficulty.Polymer flooding has become the focus of oil field development,especially for the two types of oil reservoirs,the geological conditions are complex,it is very important to determine the reasonable injection standards and the correct development policy boundaries.In this paper,Sazhong block of the first oil production plant in Daqing Oilfield as an example,through the analysis of the polymer oil,according to the principle of polymer flooding,polymer flooding in indoor experiment,injected from the polymer molecular weight,polymer,polymer injection amount and viscosity of polymer injection rate private surface analysis,get the parameters of polymer flooding;at the same time to carry out the numerical simulation experiment and according to the simulation results,obtained polymer flooding production parameters.According to the laboratory experiment and simulation results,to carry out mining experiments on recovery effect through the study of the injection,the reservoir heterogeneity and oil content of polymer flooding effect;the three under homogeneous and heterogeneous conditions of injection oil displacement experiments,the optimum injection method was determined by stages;mention control scheme optimization best injection method of polymer flooding;through the study of polymer flooding technology in different stages of policy boundaries,evaluated before polymer injection and water flooding recovery degree effect on the polymer;build blocks with different well spacing of different types of wells injection speed design specification;make different development phases of polymer flooding reasonable pressure system standard;determine the different development phases of polymer flooding injection production standard evaluation index system.