Coupled coal–gas interaction during CBM and CO2-ECBM recovery in coal seams: a critical review
W Zhu, S Liu, X Zhang, C Wei - … and Geophysics for Geo-Energy and Geo …, 2022 - Springer
Coupled coal–gas interaction in coal seams is crucial to the efficient recovery of Coalbed
methane (CBM), and carbon dioxide-enhanced CBM (CO2-ECBM). Coal is physically …
methane (CBM), and carbon dioxide-enhanced CBM (CO2-ECBM). Coal is physically …
New mechanical model of slotting–directional hydraulic fracturing and experimental study for coalbed methane development
J Zhong, Z Ge, Y Lu, Z Zhou, J Zheng - Natural Resources Research, 2021 - Springer
When hydraulic fractures do not expand in the direction required by a project, it is difficult to
enhance coal seam permeability effectively. Slotting–directional hydraulic fracturing (SDHF) …
enhance coal seam permeability effectively. Slotting–directional hydraulic fracturing (SDHF) …
Experimental study on relationship between fracture propagation and pumping parameters under constant pressure injection conditions
Field monitoring of hydraulic fractures is currently expensive, and the recorded data is often
limited to reflect fracture networks, implying the necessity of utilizing additional evidence to …
limited to reflect fracture networks, implying the necessity of utilizing additional evidence to …
Experimental study on crack propagation control and mechanism analysis of directional hydraulic fracturing
Y Cheng, Y Lu, Z Ge, L Cheng, J Zheng, W Zhang - Fuel, 2018 - Elsevier
Hydraulic fracturing is mainly used for increasing large-scale coal seam permeability in coal
mines to exploit coalbed methane and prevent coal and gas outbursts. However …
mines to exploit coalbed methane and prevent coal and gas outbursts. However …
Fracture and pore structure dynamic evolution of coals during hydraulic fracturing
Y Lu, L Wang, Z Ge, Z Zhou, K Deng, S Zuo - Fuel, 2020 - Elsevier
Hydraulic fracturing is an effective method for producing coalbed methane. To better
understand the evolution of the fracture and pore structure of coals that contain macro …
understand the evolution of the fracture and pore structure of coals that contain macro …
Experimental study on fracture propagation in anisotropy rock under cyclic hydraulic fracturing
RH Moghaddam, A Golshani - Engineering Fracture Mechanics, 2024 - Elsevier
Hydraulic fracturing is commonly used to enhance the hydraulic conductivity of geothermal,
oil, and gas reservoirs, particularly those situated in enclosed and unconventional …
oil, and gas reservoirs, particularly those situated in enclosed and unconventional …
Stress distribution properties and deformation–fracture mechanisms in hydraulic fracturing of coal
X Fang, C Wu, H Zhang, J Han, G Li, B Gao, X Jiang - Fuel, 2023 - Elsevier
The continuous injection of fracturing fluid results in a redistribution of stress in the area
affected by fracturing, which promotes the deformation and failure of coal. To reveal the …
affected by fracturing, which promotes the deformation and failure of coal. To reveal the …
Numerical simulation of hydraulic fracture deflection influenced by slotted directional boreholes using XFEM with a modified rock fracture energy model
Directional hydraulic fracturing (DHF) has been used in conductivity improvement of oil, gas
and geothermal energy reservoirs and hard rock roof breaking in coal mines. Although the …
and geothermal energy reservoirs and hard rock roof breaking in coal mines. Although the …
The breakdown process of low-permeable shale and high-permeable sandstone rocks due to non-aqueous fracturing: the role of fluid infiltration
Hydraulic fracturing operations have been widely used to enhance reservoir permeability
during the extraction of oil, shale gas and tight sandstone gas. Recently, non-aqueous …
during the extraction of oil, shale gas and tight sandstone gas. Recently, non-aqueous …
Estimation of in situ stresses from PP-wave azimuthal seismic data in fracture-induced anisotropic media
Horizontally transverse isotropy (HTI) induced by vertical or subvertical aligned fractures is
common for unconventional fractured porous shale oil or gas reservoirs. Compared with the …
common for unconventional fractured porous shale oil or gas reservoirs. Compared with the …