| The L area is a typical tight reservoir with poor physical properties and strong heterogeneity.It is difficult to develop this reservoir.Therefore,it is urgent to carry out fine three-dimensional geological modeling of L area,deepen the understanding of reservoir geology,and put forward reasonable development adjustment suggestions.Firstly,the geological characteristics and the seepage characteristics of oil reservoirs in Area L are clarified by integrating geological,logging and analytical data.By using K-means clustering method,the production wells in L area are divided into three dynamic modes,and the main control factors of development are explored.Secondly,based on the marker layer,the method of ’ sedimentary cycle correlation and classification control ’ is used to divide and compare the single layers of oil reservoirs in L area,finely describe the characteristics of single sand body in the reservoir.Based on geological knowledge base and theoretical analysis,a three-dimensional reservoir geological model constrained by lithofacies a three-dimensional reservoir geological model constrained by productivity dynamic field in L area are established respectively.Finally,the reservoir numerical simulation models of lithofacies controlled geology model and the dynamic field constrained geology model are established respectively.The validation of advantages of the reservoir numerical simulation models of dynamic field-controlled are verified by primary fitting degree.The distribution rules of remaining oil in L area are predicted by the reservoir numerical simulation model based on dynamic field-controlled,the suggestions of development adjustment in L area are puts forward,and the effects are predicted.The research results not only have practical guiding significance for the development adjustment of L area,but also provide reference for the adjustment and potential tapping of similar reservoirs. |
