Study Of Xingliu Area Of Daqing Oilfield Water Flooding Development Effect Evaluation And Optimization

To evaluate the effect of oilfield development throughout the entire process of oilfielddevelopment, is clearly the developing direction of an important means of adjustmentmeasures, determine. Xing six district and development in Daqing oilfield has entered extrahigh water cut period, oil facing highly scattered remaining oil, the remaining recoverablereserves are very limited, the deterioration of the geological conditions, difficult exploitation,production decrease development problem, long-term water flooding, the oil layer is the threebig contradiction highlights, injection-production relationship complex, tapping the potentialeffect worse, so how to maintain the annual oil stable quantity, control water cut increase,scientific and rational, effective and economic development, has become a high water-cutstage of concern.This paper takes Daqing Xingbei oil field Xing six district as the research object, presentsituation of the development of geology, the block, the residual oil potential are analyzed, andmain problems existing in the block. On the effect of water flooding was evaluated from timeto time, starting from the single well, the change law of high water cut stage effect. In theoptimization of the block production system, mainly to do the following work, are studiedwith single factor analysis of influence factors and the grey correlation method for all kinds ofmeasures, to optimize the parameters of the ideal measure well layer using fuzzycomprehensive evaluation method, which has certain guiding significance to the oilfielddevelopment evaluation of six apricot area.To establish the evaluation system of water flooding adjustment effect, the variation ofhigh water cut stage block different measures. Block storage change trend of water rate, waterdrive recovery is more than45%, stage water drive index close to2for enhanced waterinjection stage, whole block water flooding effect. Establish the optimization measures systemof water flooding, is used to optimize the parameters of various kinds of measures,collaborative optimization gives many measures.