Deformation and seepage characteristics of gas-containing coal under true triaxial stress
Sign Up to like & getrecommendations! Published in 2018 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-018-3543-1
Abstract: Conventional triaxial tests were mostly conducted to explore the coal and gas outburst mechanisms based on the moulded coal specimens, leading to the difference of three-dimensional unequal stress condition between the simulated coal seam and… read more here.
Keywords: gas; seepage; coal; true triaxial ... See more keywords
Permeability evolution of anthracite coal considering true triaxial stress conditions and structural anisotropy
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Natural Gas Science and Engineering"
DOI: 10.1016/j.jngse.2018.02.014
Abstract: Abstract It is critical to understand the gas flow behavior in coal under a reservoir stress condition for coal bed methane production, underground coal mining, and CO2-sequestration in deep coal seams. With respect to coal… read more here.
Keywords: stress conditions; permeability; stress; coal ... See more keywords
Experimental study on the anisotropy of the effective stress coefficient of sandstone under true triaxial stress
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Natural Gas Science and Engineering"
DOI: 10.1016/j.jngse.2020.103651
Abstract: Abstract The effective stress principle plays an important role in the study of the permeability evolution and mechanical behavior of coal and rocks. A key to evaluating the effective stress is determining the evolution of… read more here.
Keywords: pore pressure; stress; effective stress; stress coefficient ... See more keywords
Modeling study of sandstone permeability under true triaxial stress based on backpropagation neural network, genetic programming, and multiple regression analysis
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Natural Gas Science and Engineering"
DOI: 10.1016/j.jngse.2020.103742
Abstract: Abstract Permeability evolution of sandstone is of great significance in the development of tight sandstone gas reservoirs. Traditional laboratory tests have the disadvantages of high cost and long testing time. Therefore, the present study employed… read more here.
Keywords: analysis; permeability; stress; sandstone permeability ... See more keywords
Fracture mechanism and damage characteristics of coal subjected to a water jet under different triaxial stress conditions
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2021.109157
Abstract: Abstract Coalbed methane (CBM) recovery using water jet drilling is regarded as a promising technology for high-efficiency, heat-free, and environmentally-friendly development of deep resources. An investigation of the fracture mechanism of coal subjected to a… read more here.
Keywords: water; jet; water jet; coal ... See more keywords
Numerical Study on the Triaxial Stress Condition for Ring-like Fractures around Deep Underground Openings
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DOI: 10.1520/jte20170202
Abstract: The fracture pattern of rock mass surrounding a deep tunnel is closely related to the in situ stress, which is generally quite anisotropic. This study focuses on the triaxial stress condition for the formation of… read more here.
Keywords: stress condition; fractures around; ring like; like fractures ... See more keywords