Height Effect on Interactions between the Hydraulic Fracture and Natural Fractures

Since natural fractures have shorter heights, it is necessary to incorporate the height difference in mechanical behavior of hydraulic fracture crossing cemented at different angles. However, impact growth on intersection and not yet fully understood present. In this study, we use adaptive cohesive zone methods investigate behaviors a propagating hydrofracture The patterns mechanisms for crack propagation with are discussed. increase could restrain along southwest orientation fracture, but hardly affects northeast fracture. A lot bands appear relatively larger formation thickness. stress shadow between adjacent layers increases as increases, which promote initiation joints or fractures. cracking related position joint sets respect advancing hydrofracture. Key factors, including height, tensile strength fractures, their angle growing propagation, investigated details. addition, pressure fluctuation frequency due strong interaction. This study provides new perspective development complex network formations.