Results 11 to 20 of about 719,957 (257)

Nanoconfined Methane Storage Mechanism in Deep Coal Seams: A Wettability-Coupled Simplified Local Density Model [PDF]

Nanomaterials
In deep coal seams, where nanopores (~2 nm) dominate, wettability effects, which govern molecule–wall interaction strength, critically control the methane storage, yet remain poorly understood.
Liang Ji, Xianyue Xiong, Zhihong Nie, Zhengchao Zhang, Ming Yuan, Yang Zhang, Chengchao Xu, Xiaolong Zhao, Hongtao Yang, Chengming Zhao, Zheng Sun   +10 more
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Acknowledgment to the Reviewers of Methane in 2022

Methane, 2023
High-quality academic publishing is built on rigorous peer review [...]
Methane Editorial Office
doaj   +1 more source

Multiscale Fracturing in Medium- to Low-Rank Coals and Its Implications on Coalbed Methane Production in the Baode Area, Eastern Ordos Basin, China

Geofluids, 2022
Coal fractures are crucial in affecting the production of methane from coal. Multiscale fracturing and its implications on coalbed methane production have still not been fully understood.
Wei Zhang, Baoshan Zhao, Qingfeng Zhang, Jikun Zhang, Ziling Li, Xiaoguang Sun, Mingming Yan   +6 more
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Residual Strength Estimation Method of Soft Coal Based on Equivalent Residual Strain Ratio

Geofluids, 2022
In underground mining engineering, the residual strength of surrounding rock has an important influence on the secondary stress distribution caused by excavation. Generally, the residual strength of coal can be measured by experiments, but for soft coal,
Qingquan Liu, Hao Ling, Yanfei Lu, Jia Lin, Yuanyuan Liu, Jing Wang, Wenyi Huang, Liang Wang   +7 more
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The status and development strategy of coalbed methane industry in China

Petroleum Exploration and Development, 2023
To achieve the goals of carbon peaking and carbon neutrality under the backgrounds of poor resource endowments, weak theoretical basis and other factors, the development of the coalbed methane industry of China faces many bottlenecks and challenges. This
Fengyin XU, Wei HOU, Xianyue XIONG, Borui XU, Peng WU, Hongya WANG, Kun FENG, Jian YUN, Shuguang LI, Lei ZHANG, Xia YAN, Huijun FANG, Qian LU, Delei MAO   +13 more
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Research on support vector machine method for comprehensive evaluation after compression [PDF]

E3S Web of Conferences, 2020
Hydraulic fracturing is one of the important measures to increase production of oil and gas reservoirs. Pressure after the assessment of the existing technology is usually divided into direct and indirect diagnosis of hydraulic fracture. The diversity of
Chengwang Wang, Shuai Chen, Gaojie Chen, Han Lu   +3 more
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Recalculation and understanding of middle and low rank coalbed methane reserves: a case study of Baode Coalbed Methane Field on the eastern edge of Ordos Basin

Shiyou shiyan dizhi, 2020
The Baode Coalbed Methane Field is located in the northern section of Jinxi Flex Belt on the eastern edge of Ordos Basin. It is a typical coal seam gas field of middle and low ranks.
Lei ZHANG, Shuai HAO, Wei ZHANG, Yimin CAO, Xiaoguang SUN, Siyu YIN, Wentao ZHU, Ziling LI   +7 more
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Optimization of drilling system for CBM horizontal wells in Zhengzhuang Block of Qinshui Basin

Meitan kexue jishu, 2023
Zhengzhuang block is located in the southwest of Qinshui Basin. The main gas producing horizons are No.3 coal of Shanxi Formation and No.15 coal of Taiyuan formation. The occurrence characteristics and gas bearing properties of coal seams in the area are
Guishan LI, Zhenfeng YU, Jindong YANG, Xinya SONG, Chen GUO   +4 more
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Widespread abiotic methane in chromitites [PDF]

, 2018
Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G., Ifandi, E., Nazzari, M., Procesi, M., Steele, A., Szatmari, P., Tardini, R., Tsikouras, B., Ventura, G.   +8 more
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Hypotheses for near-surface exchange of methane on Mars [PDF]

, 2016
The Curiosity rover recently detected a background of 0.7 ppb and spikes of 7 ppb of methane on Mars. This in situ measurement reorients our understanding of the Martian environment and its potential for life, as the current theories do not entail any ...
Bloom, A. Anthony, Gao, Peter, Hu, Renyu, Miller, Charles E., Yung, Yuk L.   +4 more
core   +3 more sources