Fracture Parameter Optimization And Productivity Prediction Of Staged Fractured Horizontal Wells In Tight Sandstone Gas Reservoir

Unconventional gas has became a future energy development frontier with large volume,long term potential,attractive price and unprecedented interest of the world market.In this paper,the tight sandstone gas reservoir development technology policy was carried on thorough research of the effective sand body size and connectivity,the anatomy of the horizontal well drilling in sand body types.Horizontal well staged fracturing is one of the key technology of tight sandstone gas reservoir production stimulation,to unfold in a typical sand body scale,structural pattern and superimposed relationship research,this article explores a set of horizontal well considering the influences of gas reservoir geological characteristics of piecewise fracturing fracture parameters optimal clusters,to improve the efficiency of the gas well productivity,get the best development has very important guiding significance.The dense well spacing area and property parameters of sedimentary microfacies are built through geological modeling,and the calculation of reserves and the uncertainty evaluation,on the basis of mathematical model research,Gas reservoir horizontal Wells in a segmented clusters more fracturing fracture parameters for numerical simulation research.Combining with sand body distribution,respectively for different fracture distribution scheme and formation parameters and different fracture number of clusters,USES the local grid refinement,the crack parameters are optimized,the study of the influence law of the fracturing effect,so as to determine the relationship of yield and fracture parameters.the simulation results of actual formation system is analyzed.The formation of tight gas geological characteristics of fracturing horizontal well fracture parameters optimization scheme,provide reliable basis for improving the gas recovery.