CHEN Shaoying, WANG Wei, YANG Qingchun, et al. Sequential coupling thermal-hydro-mechanical model for multiple cluster of fracturing network fracturing in dry hot rock reservoir[J]. Petroleum Reservoir Evaluation and Development, 2022, 12(6): 869-876.
CHEN Shaoying, WANG Wei, YANG Qingchun, et al. Sequential coupling thermal-hydro-mechanical model for multiple cluster of fracturing network fracturing in dry hot rock reservoir[J]. Petroleum Reservoir Evaluation and Development, 2022, 12(6): 869-876. DOI: 10.13809/j.cnki.cn32-1825/te.2022.06.005.
In order to solve the problem that thermal-hydro-mechanical coupling model of hot-dry-rock(HDR) reservoir fracturing is complex and it is difficult to achieve large-scale multiple cluster of fracturing network simulation
a sequential coupling simulation method of HDR fracturing is proposed. By establishing a fracture expansion thermodynamic solid sequential coupling model of single cluster fracture and multi-cluster fracture network
the thermal-hydro-mechanical sequential coupling simulation of large-scale HDR fracture network is realized. The influence of brittleness index
stress field displacement and other key parameters on the propagation of fracture network are analyzed in this model. The results showed that high temperature difference
large brittleness index and large injection pumpage could promote the propagation of fracture network
but large stress difference is not conducive to the propagation of fracture network.