Optimization of Staged Fracturing Parameters of Horizontal Well in Typical Block of Sulige Tight Gas Reservoir

The southeast of Sulige gas field is a typical tight gas field with low porosity and low permeability, tight reservoir, strong heterogeneity, difficult to use reserves, insufficient gas supply energy of gas Wells, generally low production or no natural productivity. Industrial oil flow cannot be formed after conventional well completion, and economic exploitation can only be realized by hydraulic fracturing. Although the staged fracturing of horizontal Wells has been applied on a large scale, the optimization system of pumping plug fracturing parameters has not yet been established. The optimization of fracture parameters provides an important basis for the optimization of fracturing construction design and the evaluation of fracturing effects. Therefore, based on the analysis of reservoir parameters and dynamic data in the southeast Sulige Gas Field, the effects of fracture orientation, fracture number, fracture spacing, fracture length, fracture conductivity and other parameters on fracture extension and post-compression productivity of horizontal Wells were simulated by using fracturing and numerical simulation software, and the optimal fracture parameters were optimized, which provided an important basis for the optimization of fracturing design and reconstruction mode of horizontal Wells in tight gas reservoirs.