Results 11 to 20 of about 1,849 (162)

Experimental Investigation on Mechanics and Seepage Characteristics of Tectonic and Intact Coal Containing Gas

open access: yesApplied Sciences, 2020
Coalbed methane is a double-edged sword with two attributes of energy and hazard in coal mines. Gas drainage is the most direct and effective measure for gas recovery and disaster prevention in coal mines, which is seriously affected by the mechanics and
Chaolin Zhang   +3 more
doaj   +1 more source

Experimental study on confined compression deformation and breakage characteristics for different types of coal particles

open access: yesMeitan kexue jishu, 2023
Dynamic disasters such as coal and gas outburst seriously restrict the safety of mine production. Different types of coal particles reflect the coal structure, mechanical characteristics and energy storage behavior under load, which is of great ...
Wei LI   +5 more
doaj   +1 more source

Experimental Investigation of the Adsorption Characteristics of Mixed Coal and Variations of Specific Surface Areas before and after CH4 Adsorption

open access: yesApplied Sciences, 2019
Tectonic coal is a kind of soft coal that is generated during tectonic movement. Gas outbursts usually occur in seams containing both virgin coal and tectonic coal.
Pengxiang Zhao   +7 more
doaj   +1 more source

Geophysical response characteristics and genetic analysis of tectonic coal:take Zhaozhuang coal mine in Jincheng mining area as an example

open access: yes矿业科学学报, 2018
The distribution of tectonic coal is of great importance to the exploration and development of coal-bed methane and the safety production of coal mine.The Zhaozhuang coal mine in Jincheng mining area is took as example.Firstly, the vertical distribution ...
Zou Guangui, Li Laichun
doaj   +1 more source

Analysis of the Coal and Gas Outburst Mechanism from the Perspective of Tectonic Movement

open access: yesGeofluids, 2021
Coal and gas outburst is the extreme instability caused by stress, gas, and coal. In this review article, dominant factors and inducing factors of outburst were summarized; geologic features of typical outburst cases and the effects of tectonic movement ...
Qingyi Tu   +4 more
doaj   +1 more source

Nanopore Structure and Mechanical Properties in Brittle Tectonically Deformed Coals Explored by Atomic Force Microscopy

open access: yesFrontiers in Earth Science, 2022
Tectonically deformed coals (TDCs) are of great importance to coalbed methane exploitation and coal mining safety. Compared to primary coals, reservoir properties of TDCs have been transformed greatly by tectonic stress.
Ningyuan Zhang, Suping Yao, Yuhui Wang
doaj   +1 more source

Characteristics of stratified coal reservoirs in Liupanshui coalfield of Guizhou Province and exploration and development direction of coalbed methane [PDF]

open access: yesYouqicang pingjia yu kaifa
Guizhou Province is rich in coalbed methane(CBM) resources; however, the development of tectonic coal constrains the increase of reserves and production.
QIU Wenci, SANG Shuxun, GUO Zhijun, HAN Sijie, ZHOU Xiaozhi, ZHOU Peiming, WU Zhangli, SANG Guoyun, ZHANG Binbin, GAO Wei
doaj   +3 more sources

Experimental Study on Adsorption Pore Structure and Gas Migration of Coal Reservoir Using Low-Field Nuclear Magnetic Resonance

open access: yesAdvances in Civil Engineering, 2020
For the quantitative recognition and characterization of the flow characteristics of polymorphism coalbed gas in tectonic coal, experiments on pore morphology, pore diameter distribution, and methane adsorption law in outburst tectonic coal were carried ...
Jiazhuo Li   +7 more
doaj   +1 more source

Coalfield structure and structural controls on coal in China

open access: yesInternational Journal of Coal Science & Technology, 2020
The occurrence of coal-bearing strata in a variety of coal-bearing basins of China is characterized by late tectonic deformation and remarkable spatial and geochronologic differences.
Daiyong Cao   +8 more
doaj   +1 more source

Multiple-Level Tectonic Control of Coalbed Methane Occurrence in the Huaibei Coalfield of Anhui Province, China

open access: yesEnergies, 2022
The Huaibei coalfield is an important coal base and one of the hot spots of coalbed methane development in China. Therefore, a detailed understanding of gas occurrence in the Huaibei coalfield is of great significance.
Zhigen Zhao, Sheng Xue
doaj   +1 more source

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