Practice and Understanding of Shale Gas Fracturing in Baima Complex Structural Area of Fuling

Baima complex structural area of Fuling shale gas field is characterized by large stress variation, well-developed faults and strong reservoir heterogeneity. The hydraulic fracture network of the block is evaluated by early microseismic monitoring and the results show that it is uneven in extension and low in complexity. In order to improve the fracturing effect in Baima complex structural area, by combining the analysis of geological characteristics and numerical simulation results, the perforation parameters, segment cluster spacing, modification scale and the material are optimized. The design method and guidance parameters of shale gas fracturing technology in Baima complex structural area are put forward. The field test output of the process was 13×10⁴ m³/d, which fully verified the effectiveness of the process. The research results can provide a reference for the fracturing process in Baima complex structure area.