Numerical Simulation Research on the Interactive Propagation of Hydraulic Fractures and Natural Fractures

In order to study the fracture propagation behavior after interaction between hydraulic fractures and natural fractures, cohensive unit of Abaqus finite element software is used simulate influence in rock on fractures. The simulation results show that when approach angle kept constant, as in-situ stress difference increases, are more likely penetrate expand along direction maximum horizontal principal stress; while remains same, easier stress. When tensile strength cracks unchanged, probability forming a complex network reduced, it