Study On Characterization Of Flow Unit In Tight Reservoir Based On Combination Of Dynamic And Static Data And Human-computer Interaction

W area is a typical strongly heterogeneous tight reservoir.The reservoir flow unit study only relying on static data cannot objectively and accurately characterize the reservoir heterogeneity,which is one of the main reasons for the poor development effect..Therefore,it is urgent to carry out the study of flow units based on the characteristics of tight oil reservoirs,to deepen the understanding of reservoir geology,and to improve the effect of reservoir development.First,the geological characteristics and development dynamics of the W area were comprehensively analyzed,and the division principle of tight reservoir flow units was determined.Five key parameters for the study of tight reservoir flow units including porosity,permeability,shale content,effective thickness,and inflow fluid strength were screened.Secondly,the compatibility of the reservoir flow unit established by AHM method,entropy weight method and the entropy weight-AHM method and the development dynamic is compared and analyzed,and the entropy weight-AHM method are comprehensively screened as the research method of tight reservoir flow unit considering the stimulation measures.Then,the entropy weight-AHM method human-computer interaction calculation module for the comprehensive division of tight reservoir flow units by dynamic and static parameters is compiled.Finally,taking the research results of flow units as constraints,a three-dimensional geological model of the target oil reservoir was established,the characteristics and differences of single sand bodies were analyzed,and a set of evaluation criteria for the matching between fracturing stimulation measures and oil reservoirs was formed;The adjustment direction of production stimulation measures for tight oil reservoirs under different matching degrees is proposed.The research results of this paper have certain practical significance for deepening the understanding of the geological characteristics of tight oil reservoirs in W area and for the next development and adjustment.At the same time,it also provides a reference for the study of tight reservoir flow units.