Research On The Single Well Injection Adjustment Optimization Proposal Of The West Of Pure Oil Region In Xing No.10 District

This paper focuses on the geological situation and development of pure oil region of the west of Xing No.10 district,the block has reached the stage of high water cut.Meanwhile big difference between intervals,such as the amount of water absorption,decreased oil production capacity,so interval subdivision adjustment and the determination of reasonable water injection rate are needed.Thus we can make waterflood oil field development more efficient.During the studies of the adjustment of layer segment subdivision,this paper analyze various factors that affect the producing status of each layer,then make sure the main factors;Atilize AHP combined with practical experience in the field to determine the weights of each factor;Then calculate the comprehensive evaluation coefficient(ie El)that can present the producing status of each layer with the usage of fuzzy comprehensive judgment method;Taking the thickness of interval,permeability coefficient of variation,El,and mezzanine thickness into account,determine whether the subdivision is reasonable,if not,we should readjust the layer segment subdivision in order to make it reasonable.Meanwhile,the paper analyze the reservoir pressure and water cut of different water well layer segments.Letting the two factors as the adjustment boundaries of the development indicators,we did the research on the quality of each water well layer segment,that is when to strength,balance or control injection.According to oil wells around the water,recovery and measures the pressure of several factors to determine the best direction wells measure intervals and consider section layer water injection,water injection interval intensity interval KH value and the average interval El four factors wells on the same multi-port case further preferred direction,and ultimately determine the direction of best practices.Theoretical study of the project is completed through making the computer language into executable applications,it has already simplified the process and been able to promote the use of other blocks.Meanwhile,the methods and results of Xing No.10 district research can provide a theoretical basis and reference.