Optimization of Key Parameters of Tight Cut Fracturing Cracks for Horizontal Well Development of Tight Sandstone Gas Reservoirs

Abstract

The permeability of dense sandstone gas deposit substation is very low, and it is often developed by horizontal well-tight cutting fracturing. The pressure crack network determines the production capacity of the gas well, so the optimization of the seam mesh parameters is the key problem in the efficient development of dense sandstone gas deposit. In order to solve the problem of multi-parameter comprehensive optimization of fracking horizontal wells, based on the principle of unstable seepage, a model for predicting the yield of fracking gas storage horizontal wells considering crack interference is established, and different crack conductivity, crack length, different crack patterns, crack spacing and number of crack clusters are designed in the model to simulate production, and the optimal fracking crack parameters are compared. Using numerical simulation method to analyze the main control factors of horizontal well fracturing effect, obtain the optimal parameters of fracking cracks, and provide ideas and reference for horizontal well fracturing construction in dense sandstone gas storage sites, which has certain theoretical guidance significance.