Results 81 to 90 of about 6,445 (232)

Geological characteristics and main enrichment controlling factors of coalbed methane in Nanchuan area, southeastern Sichuan Basin

Shiyou shiyan dizhi
A significant strategic breakthrough has been achieved in the exploration of deep coalbed methane (CBM) in the Upper Permian Longtan Formation in the Nanchuan area, southeastern Sichuan Basin, showing promising exploration potential for CBM in this area.
Xipeng HE, Kaiming WANG, Wei LUO, Yuqiao GAO, Nana LIU, Tao GUO, Yatong ZHOU, Didi WU   +7 more
doaj   +1 more source

Removing methane (degasification) from the Pocahontas No. 4 coalbed in southern West Virginia [PDF]

"Tests were conducted in the Pocahontas No. 4 coalbed in southern West Virginia to determine if successful degasification techniques, developed during an earlier study in the Pittsburgh coalbed, would be effective in removing methane from those usually ...

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Removing methane (degasification) from the Pittsburgh coalbed in northern West Virginia [PDF]

"Tests were conducted in the Pocahontas No. 4 coalbed in southern West Virginia to determine if successful degasification techniques, developed during an earlier study in the Pittsburgh coalbed, would be effective in removing methane from those usually ...

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Numerical simulation of hydraulic fracturing coalbed methane reservoir

, 2014
Some coal seam is well known for its three low characteristics: low permeability, low reservoir pressure and low gas saturation. Thus stimulation measures must be taken during coalbed methane development stage to enhance its recovery.
Zhang, Jingchen
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Investigation into Enhancing Methane Recovery and Sequestration Mechanism in Deep Coal Seams by CO₂ Injection

Energies
Injecting CO2 into coal seams to enhance coal bed methane (ECBM) recovery has been identified as a viable method for increasing methane extraction. This process also has significant potential for sequestering large volumes of CO2, thereby reducing the ...
Xiongwei Sun, Hongya Wang, Bin Gong, Heng Zhao, Haoqiang Wu, Nan Wu, Wei Sun, Shizhao Zhang, Ke Jiang   +8 more
doaj   +1 more source

Methane and dust controls for longwalls : Pocahontas no.3 coalbed, Grundy, Virginia [PDF]

"The periphery of longwall panels in the Pocahontas No. 3 Coalbed is characterized by a zone of reduced permeability that inhibits the natural drainage of methane. A residual gas pressure of 105 psig was measured after 1 year in an isolated block of coal

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Prediction of Coalbed Methane Production Based on BP Neural Network

, 2019
The low average daily gas production per well and the poor economic benefit of exploration and development have become the main problems restricting the exploration and development of coalbed methane in China.
Yifang Tang, Zixi Guo, Tianxiang Zhang, Jianjun Wu, Bing Li   +4 more
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Optimization of coal seam pressure fracturing fluid system in the eastern edge of the Ordos Basin based on IoT sensors

Measurement: Sensors
In the eastern edge of the Ordos Basin in China, coalbed methane geological resources are very abundant, and efficient extraction of coalbed methane has become an important demand for energy development strategies and coal safety production.
Shuguang Li, Pu Yuan, Huaibin Zhen, Hao Gong   +3 more
doaj   +1 more source

Research on coalbed methane extraction technology based on in-situ microwave heating

Meitan kexue jishu
Microwave heating, as a fast and controllable heating method, can quickly increase the temperature and permeability of coal seams, and thus enhance the recovery rate of coalbed methane.
Feng WANG, Chuangye WANG, Meng LIU, Xiaogai TAN, Ersi GAO, Tengze GE, Danlu LIU, Xiaohu XU   +7 more
doaj   +1 more source

Degasification of the Mary Lee Coalbed, Brookwood, Ala. [PDF]

"The Bureau of Mines has developed several techniques for draining methane from coalbeds in advance of mining. Drilling long horizontal holes from an underground location is one such technique, which was successfully demonstrated in the Pittsburgh and ...

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