Anisotropic strain of anthracite induced by different phase CO2 injection and its effect on permeability

J Pan, H He, G Li, X Wang, Q Hou, L Liu, N Cheng - Energy, 2023‏ - Elsevier
To study the swelling/shrinkage strain effects of different phases of CO 2 when injected into
anthracite and the influence that has on the dynamic evolution of coal permeability, an …

[HTML][HTML] Evolution of coal permeability during gas/energy storage

C Jiang, J Liu, YK Leong, D Elsworth - International Journal of Hydrogen …, 2024‏ - Elsevier
Both carbon dioxide and hydrogen can be stored in coal seams as two enabling
components of energy transition from fossil-based systems to renewable sources. In both …

Research on molecular structure characteristics of vitrinite and inertinite from bituminous coal with FTIR, micro-Raman, and XRD spectroscopy

H Zhou, C Wu, J Pan, Z Wang, Q Niu, M Du - Energy & Fuels, 2021‏ - ACS Publications
To carry out an in-depth study of the macromolecular differences of vitrinite and inertinite
with metamorphism degree, ultimate analysis, Fourier transform infrared (FTIR) …

Time-dependent coal permeability: Impact of gas transport from coal cleats to matrices

C Wang, J Zhang, Y Zang, R Zhong, J Wang… - Journal of Natural Gas …, 2021‏ - Elsevier
Coal seams are usually fractured reservoirs where the factures/cleats are fluids flow
channels, and the matrix blocks serve as the storage space. The gas transport within the …

[HTML][HTML] Insights into carbon dioxide sequestration into coal seams through coupled gas flow-adsorption-deformation modelling

H Thomas, M Chen - Journal of Rock Mechanics and Geotechnical …, 2024‏ - Elsevier
Injecting carbon dioxide (CO 2) into coal seams may unlock substantial carbon
sequestration potential. Since the coal acts like a carbon filter, it can preferentially absorb …

Water saturation and distribution variation in coal reservoirs: intrusion and drainage experiments using one-and two-dimensional NMR techniques

J Zhang, Q Hu, X Chang, Z Qin, X Zhang, S Marsh… - Energy & …, 2022‏ - ACS Publications
Determining water occurrence in pore-fracture systems under specific water saturation is of
great significance to reveal the correlation between the water content and …

Microscopic distribution and dynamic variation of water under stress in middle and high rank coal samples

J Zhang, C Wei, W Ju, Z Qin, Y Ji, F Quan… - Journal of Natural Gas …, 2020‏ - Elsevier
Determining the process of water migration and transformation in a pore-fracture system
under stress is essential to explain the effect of water saturation on permeability and …

Investigation on effective stress coefficients and stress sensitivity of different water-saturated coals using the response surface method

J Han, C Wu, X Jiang, X Fang, S Zhang - Fuel, 2022‏ - Elsevier
The relative magnitude of confining pressure and pore pressure, a key parameter for stress
sensitivity of coal permeability, can be characterized by the effective stress coefficient (ESC) …

Experimental study of the effective stress coefficient for coal anisotropic permeability

Z Liu, D Liu, Y Cai, Z Pan - Energy & Fuels, 2020‏ - ACS Publications
The effective stress plays an essential role in predicting the permeability of the coal reservoir
during coalbed methane (CBM) production. However, the importance of the effective stress …

Drainage type classification and key controlling factors of productivity for CBM wells in the Zheng Zhuang Area, Southern Qinshui Basin, North China

H Wang, X Zhang, C Wu, G Cheng, B Hu, L Fu… - ACS …, 2022‏ - ACS Publications
The production of coalbed methane (CBM) wells varies greatly in the Qinshui Basin, North
China. Analyzing the primary factors controlling the CBM well productivity is essential to …