姚店油田石40区块长6油藏注水开发对策研究

Study on Water Injection Development Countermeasures of Chang 6 Reservoir in Shi 40 Block of Yao Oilfield

随着开发程度的不断深入,延长油田大部分区块进入开发中后期,油田含水率上升、单井产量下降,开发矛盾日益突出。通过开展精细地质、油藏工程研究,充分利用研究区钻井、测井、录井、分析化验等资料,认清研究区长6储层砂体展布、储层物性分布、平面连通性、非均值性等特征,落实剩余油分布特征,针对目前注水开发存在的局部高含水,注水对应性差等主要问题,结合合理开发技术政策研究,提出整体优化方案,保障该区的高效开发、可持续开发。

With the deepening of development,most blocks of Yanchang Oilfield have entered the middle and late stage of development,the water cut of the oilfield has increased,the output of single well has decreased,and the contradiction of development has become increasingly prominent.On the basis of previous achievements,this paper makes full use of the data of drilling,logging,mud logging,analysis and testing in the study area,and through the research of fine geology and reservoir engineering,recognizes the characteristics of sand body distribution,reservoir physical property distribution,plane connectivity,non-average value and so on in Chang 6 reservoir in the study area,and implements the remaining oil distribution characteristics.Aiming at the main problems existing in current water injection development,such as local high water cut and poor water injection correspondence,combined with the research of rational development technology and policy,the overall optimization scheme is put forward to ensure this.