The Optimization of Fracturing Parameters of Horizontal Well under Different Reservoir Conditions in Tight Sandstone Gas Reservoir

In order to ensure the good fracturing effect of horizontal well in the Sulige gas field, block SuX of Sulige gas field was used as an example, the typical horizontal wells of different fracturing mode were selected. According to the different reservoir conditions, the fracturing mode of horizontal well was optimized, the hybrid PEBI meshing method of near wellbore module (NWM) of numerical simulation software named Eclipse was used to mesh the typical horizontal well area, the coupling relationship between the fracture of fractured horizontal well and wellbore and matrix was described, the coupled numerical simulation model between the matrix of gas reservoir and fracture was established, the fracture parameters including fracture interval, fracture half length and fracture conductivity of different fracturing mode of horizontal wells were reasonably optimized using numerical simulation method, the reasonable configuration relationship between the reservoir conditions and the fracturing parameters of horizontal well were established. The results indicate that, the different fracturing mode is suitable for the reservoir conditions, and the reasonable fracturing parameter is suitable for the fracturing mode.