Study On Fracture Network Permeability of Dry Hot Rock Based On Source Mechanism

Fracture percolation is the key factor of percolation analysis of dry-hot rock reservoir. As one of the main techniques of dry-hot rock mining, microseismic monitoring can solve and analyze it. In this paper, the method of calculating fracture network permeability based on source mechanism is discussed. Firstly, the source mechanism is solved by moment tensor inversion. On this basis, the deterministic discrete fracture network is modeled and the total permeability tensor is calculated. Finally, the microseismic monitoring data of a hot and dry rock is selected to apply the method in practice. The result shows that this method can effectively analyze the law of seepage flow change of reservoir fracture network, and has certain guiding significance to formulate the development plan of dry hot rock rationally.