Results 21 to 30 of about 6,394 (115)
Influence of chemical structure of coal measure rock on gas adsorption performance
Meikuang Anquan, 2023 In order to study the influence of the chemical structure of coal measure rock on the gas adsorption performance, taking the coal and rock samples of Shaqu No.1 Mine as the research object, the structure of coal and rock was analyzed from the microscopic
ZHANG Junhu +7 more
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Meitan kexue jishuThe Ordos Basin is rich in coal-rock gas resources, and significant breakthroughs have been made in exploration and development in many blocks. However, the key controlling factors for the gas content of coal have not yet been clarified, which restricts ...
Ze DENG +7 more
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Coal mine rock burst and coal and gas outburst perception alarm method based on color image
Gong-kuang zidonghua, 2022 The paper analyzes the image characteristics of the thrown coal and rock when rock burst and coal and gas outburst occur. ① The coal and rock thrown out during rock burst and coal and gas outburst are mainly black, but the underground equipment of the ...
SUN Jiping, CHENG Jijie, WANG Yunquan
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Deep Coal Rock Gas Reservoir Inversion Prediction Method Based on Multi Quality Parameter Coupling
Cejing jishuAs a new type of unconventional natural gas resources, deep coal rock gas has become a hot spot for exploration in major oil and gas fields in China. However, it is different from conventional shallow coalbed methane. Adsorbed gas and free gas coexist in
MAO Chenfei +7 more
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Gong-kuang zidonghua, 2023 The burial image features of a large amount of black coal rock thrown out during rock burst and coal and gas outburst are analyzed. The features include changes in the area of the monitoring area's color and corresponding graphics, changes in the number ...
SUN Jiping, CHENG Jijie, WANG Yunquan
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Meitan xuebaoTo investigate the dynamic behaviors and damage characteristics of gas-containing coal-rock combinations under impact loading, a triaxial dynamic compression experiment was designed and conducted using a gas-containing coal-rock impact damage-seepage ...
Dengke WANG +14 more
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Experimental study on disaster caused by instability of loaded gas-bearing coal-rock combination
Meikuang AnquanWith the depletion of shallow coal resources in China, the depth and intensity of coal mining have gradually increased in recent years, the amount of gas emission has increased sharply, and coal-rock compound disasters occur frequently, which brings ...
Yang LI +3 more
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Meitan kexue jishuThe occurrence mechanism of coal and gas outburst disasters is still unclear. According to the rheological hypothesis, gas-bearing coal and rock may enter the “strength limit neighborhood” under long-term load, and it is more likely to be destroyed by ...
Bo WANG +6 more
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Current Status and Challenges of Log Evaluation Technology for Coal-Rock Gas
Cejing jishuTo 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 +7 more
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Experimental Research on Permeability of Coal and Rock Mass considering Postpeak Failure
Geofluids, 2021 In most mining areas of China, coal seams are characterized by low gas pressure, poor permeability, and high gas adsorption capacity, all of which have brought considerable difficulties to coal seam mining and coalbed methane (CBM) extraction.
Zhiguo Cao +3 more
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