Numerical Simulation of Hydraulic Fracture Propagation in Conglomerate Reservoirs: A Case Study of Mahu Oilfield

Mahu conglomerate oilfield has strong heterogeneity. Currently, large-scale hydraulic fracturing is commonly used for reservoir reconstruction. The geometry of fractures influenced by gravel. By referring to the scanning and logging results a reservoir, considering characteristics gravel development in Oilfield python programming establish finite element model containing matrix, bonding interface, gravel, which considers random distribution position size. uses cohesive global embedding study fracture. show that fracture mainly spreads around propagation path affected horizontal stress difference. When interfacial strength greater than 2 MPa, more likely be penetrated fractures, or stop expanding after entering conglomerate. largely determines whether can pass through it. 7 will During process reservoirs, using large injection rate result longer larger volumes.