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Coal-rock gas: Concept, connotation and classification criteria

Petroleum Exploration and Development
In recent years, great breakthroughs have been made in the exploration and development of natural gas in deep coal-rock reservoirs in Junggar, Ordos and other basins in China.
Guoxin LI, Shuichang ZHANG, Haiqing HE, Xinxing HE, Zhe ZHAO, Xiaobing NIU, Xianyue XIONG, Qun ZHAO, Xujie GUO, Yuting HOU, Lei ZHANG, Kun LIANG, Xiaowen DUAN, Zhenyu ZHAO   +13 more
doaj   +5 more sources

Study on Rheological Properties of Coal Rock Containing Gas under Disturbance Conditions [PDF]

Shock and Vibration, 2022
In view of the dynamic phenomenon that coal and rock are susceptible to external impact disturbance in the mining process, combined with the rheological hypothesis mechanism of coal and gas outburst, the RLSS-II-type triaxial loading creep test system of
Guoyu Zhang, Zikang Huang, Tao Zhu, Bo Wang, Xudong Xing, Yufei Liu, Guanghui Zheng, Kaiwen Liu, Jimin Su   +8 more
doaj   +4 more sources

Study on influencing factors and prevention measures of coal-rock-gas compound dynamic disaster in deep coal mine mining [PDF]

Scientific Reports
Because coal seam mining with high geostress and high gas pressure is prone to coal–rock–gas compound dynamic disasters, a disaster energy equation considering the influence of roof elastic energy is established, and a disaster energy criterion ...
Xu Wang, Chenglin Tian, Qingbiao Wang, Zhenyue Shi, Yong Sun, Keyong Wang   +5 more
doaj   +4 more sources

Study on failure mechanism of cracked coal rock and law of gas migration

Frontiers in Earth Science
China possesses abundant coal resources and has extensive potential for exploitation. Nevertheless, the coal rock exhibits low strength, and the coal seam fractures due to mining activities, leading to an increased rate of gas emission from the coal seam.
Feng Du, Feng Du, Feng Du, Bing Liang, Yixing Ren, Xingchuan Liao, Lingjun Pei, Zuoyuan Fan, Wei Liu   +8 more
doaj   +3 more sources

Investigation into the gas adsorption-loading coupling damage constitutive model of coal rock [PDF]

Arabian Journal of Geosciences, 2021
Abstract Coal and gas outburst is the result of comprehensive action of in-situ stress, gas and mechanical properties of coal rock. The coupling effect of loading and gas adsorption eventually leads to the coal rock failure. Based on the principle of strain equivalence and considering the coupling effect of gas adsorption and stress loading, an
Zhongzhong Liu, Hanpeng Wang, Su Wang, Xue Yang, Chong Zhang   +4 more
openalex   +2 more sources

Structural-tectonic factor of gas potential formation in the coal rock massifs of the Donbas

Мінеральні ресурси України, 2015
Distribution of natural gases within the Donets basin is very irregular that stipulated by the depth variation to the methane zone, degassing level of the coal measure and data on coal mines gas regime.
V. L. Pluzhnikova, N. V. Verhelskа
doaj   +2 more sources

Study on damage and failure characteristics of loaded gas‐bearing rock–coal–rock combination structures [PDF]

Deep Underground Science and Engineering
The essence of the outburst–rock burst compound dynamic disaster is the disaster behavior of the “gas‐coal‐surrounding rock” system under the comprehensive action of the stress field and the seepage field.
Feng Du, Kai Wang, Wanyu Yang, Jiazhi Sun, Xiyang Fang, Yiyang Zhang, Longyong Shu, Liang Wang, Jiaxu Zhou   +8 more
doaj   +3 more sources

Solid-Gas Coupling Model for Coal-Rock Mass Deformation and Pressure Relief Gas Flow in Protection Layer Mining [PDF]

Advances in Civil Engineering, 2018
The solid-gas coupling model for mining coal-rock mass deformation and pressure relief gas flow in protection layer mining is the key to determine deformation of coal-rock mass and migration law of pressure relief gas of protection layer mining in ...
Zhuohui Zhu, Tao Feng, Zhigang Yuan, Donghai Xie, Wei Chen   +4 more
doaj   +2 more sources

Geochemical characteristics and geological significance of Carboniferous Benxi coal rock gas in central and eastern Ordos Basin

Shiyou shiyan dizhi
The coal rock gas resources in the 8# coal seam of the Carboniferous Benxi Formation in the central and eastern Ordos Basin have great potential. By analyzing the gas components and carbon and hydrogen isotope compositions of the desorbed gas from 33 ...
Kang MENG, Hua WANG, Yougen HUANG, Daofeng ZHANG, Xiaopeng ZHENG, Qingqiang MENG, Zhanhai YU, Yaling QI, Linhui SHI, Lei TANG, Chunyan ZHAO, Mengyuan ZHANG   +11 more
doaj   +2 more sources

Current Status and Challenges of Log Evaluation Technology for Coal-Rock Gas

Cejing jishu
To provide technical support for the exploration and development of coal-rock gas resources, and facilitate the achievement of the "carbon peaking and carbon neutrality" goals, this study systematically compares the reservoir characteristics of coal-rock
LIU Die, ZHOU Jinyu, SONG Lianteng, LIU Zhonghua, TIAN Lili, WU Mingsong, LI Ye, DANG Wenle   +7 more
doaj   +3 more sources