Developmental Effect Evaluation And Adjustment Optimization Research Of Qian-48 Block

The rule of remaining oil distribution is a difficult problem in the whole world and is also the most advanced subject in the area of geology and geophysics and reservoir engineering. The remaining oil is the basis of developmental adjustment and, improvement of production and oil recovery. In addition, it offers the significant basis for the strategy of reservoir management. Nowadays, the advanced subjects on remaining oil is under the guide of developmental geology and reservoir engineering and combines geology, drilling,well testing and developmental performance, which is the trend of studying remaining oil during the high water-cut period.In order to make sure the steady and increasing production of Qian-48 block and define the optimization research plan of development, the research of flow unite is made analysis as to the low permeability reservoir of Qian-48 block and the flow unit is obtained on the basis of phase control. Ratio of injection to production and some other related factors, especially the degree of water flooding, the relation between ration of injection to production and pressure and injecting speed, injection pressure, water sweep, well pattern, evaluation of water flooding is given out. The influence of water flooding, well pattern and water sweep are on recovery is discussed and two method of predicting remaining oil are used:Φfunction and reservoir numerical simulation. Optimization developmental plan is given and economical evaluation is raised through development index.