Permeability models are essential for quantitatively describing coal permeability evolution and predicting gas migration during deep mining. Deep coal subjected to mining disturbance commonly exhibits pronounced nonlinear changes in permeability, limiting the applicability of conventional models. In this study, coal is...
Sen-Lin Xie, Shuai Yang, Wen-Li Jia et al.· Fractal and Fractional· 0 citations
Understanding the stress sensitivity of multiscale pore fracture structures (PFS) in coals with different ranks is critical for evaluating coalbed methane (CBM) reservoir behavior. In this study, low-rank and high-rank coals were subjected to effective confining pressure loading–unloading tests under constant pore pres...
Wen-Li Jia, Sen-Lin Xie, Fang-Wei Li et al.· Fractal and Fractional· 0 citations
Clarifying the evolution of pore-fracture structure (PFS) and the associated seepage mechanisms of deep coal under coupled seepage and mining-induced stress is important for the safe and efficient in situ fluidized mining of deep coal resources. In this study, a nuclear magnetic resonance (NMR) online triaxial testing...
Wen-Li Jia, Shuai Yang, Fang-Wei Li et al.· Fractal and Fractional· 0 citations
Understanding the dynamic evolution of pore and fracture structure (PFS) in coal under mining disturbance is essential for safe coal extraction. In this study, coal specimens collected from the Dongqu Mine, Taiyuan, Shanxi Province, China, were subjected to stepwise cyclic confining pressure loading–unloading tests usi...
Sen-Lin Xie, Shuai Yang, Wen-Li Jia et al.· Fractal and Fractional· 4 citations
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