Study On Remaining Oil Distribution In Hainan 3 Block Of Yuehai Oilfield

When waterflooding oilfield enters the late stage of high water cut development,it is necessary to ensure stable production and sustainability of oilfield,and ensure good economic benefit and high final recovery.The research of dynamic development evaluation and remaining oil distribution rule is the basis of oilfield comprehensive adjustment and deployment.On the basis of comprehensive analysis of oil field geological development characteristics,development history,water flooding law and reserves moving,it is necessary to coordinate the development contradictions and give a reasonable adjustment plan for development and deployment.This paper takes the HN1 and HN3 fault block oil fields as the research object.Through the study of the reservoir situation,the development course and the mining characteristics of the oilfield,the development effect of the oil field is evaluated and the main problems in the development process are analyzed.Based on this,the geological model was constructed and numerical simulation was carried out.The distribution characteristics of the remaining oil in the oil field were studied through the reserve fitting,diachronic fitting,single well and overall index fitting.At the same time,combined with the material balance method and dynamic analysis method,the distribution characteristics of the remaining oil are studied,and the development potential of the oil field is analyzed,and the reasonable potential and potential measures are put forward.On the basis of theoretical analysis and numerical study,the opinions of adjustment and deployment are put forward,a comprehensive adjustment plan is formulated,and the development index of the adjustment scheme is scientifically and reasonably predicted,and the implementation effect of the adjustment and optimization scheme is given.The conclusion has certain practical guiding significance for the development evaluation of HN3 oilfield.