Study On Remaining Oil Distribution And Development Plan Optimization Of A Typical Fault Block Reservoir

At present,most of the complex fault block oil reservoir has entered high water cut stage.Compared with the monoblock sandstone reservoir,the development level and degree is generally lower.As development goes on,the difficulty of water control and oil stimulate will increase,and the development effect will face more difficult challenge.In order to improve the water flooding reserves producing degree of inefficient development unit of a typical fault block reservoir and the recovery ratio of late high water cut development reservoir,we shall carry out the study of water drive technology.I set five typical fault block oil reservoir in Xianhe oil field as the research object,studying with the date of integrated structure,fracture,geology and well logging,using data processing,dynamic and static analysis,numerical simulation and history matching method to carry out the research work,formed to the imitation of complex fault block reservoir with water drive development technology.First of all,I establish the fine 3D geological models of these five typical fault block in the study area.Secondly,on the basis of static geological data in combination with dynamic analysis data,I establish numerical simulation models of these five typical fault block oil reservoir in the study area,and carry out the history matching of water drive of these typical fault block reservoir,and reach the history matching rate of 87%.Thirdly,I analyse the practical geological model of different types of fault block and remaining oil distribution features,and reveal the distribution rule of remaining oil of complex fault block oil reservoir.Forthly,I form a set of injection parameter optimization method,and propose differentiation injection-production parameters optimization scheme for 5 kinds of typical fault block in Shengli region.