A method of hydraulic fracture modeling in shale gas reservoir based on multipoint geostatistical approach

In this paper, we introduce a method to model the hydraulic fracture in shale gas reservoir by using multi-point geostatistics. According to the simulation results of hydraulic fracture propagation, the distribution patterns and morphological parameters of hydraulic fracture in the simulation area are summarized, and the 3D training images including natural fracture facies and hydraulic fracture facies are established. Taking micro-seismic data as conditional data, data events and data templates based on micro-seismic information can be constructed, and multi-point geostatistical algorithm is used to conduct spatial simulation of post-fracturing fracture system. Through comprehensive model evaluation, the final algorithm and modeling parameters are optimized. The 3D distribution model of fracture network attribute parameters after fracturing is established by using facies-controlled attribute modeling, and the geological model of shale gas reservoir fusion matrix and complex fracture system is finally realized. The research results will provide technical support for geological modeling, overall design and optimization of shale gas.