Results 1 to 10 of about 386 (109)
Numerical Analysis of Drainage Rate for Multilayer Drainage Coalbed Methane Well Group in Southern Qinshui Basin [PDF]
Energy Exploration and Exploitation, 2020 Multilayer drainage is one of the important technologies for coalbed methane (CBM) production in China. In this study, a multi-field fully coupled mathematical model for CBM production was established to analyze the multilayer drainage of CBM well group in southern Qinshui basin.
Shuxun Sang +2 more
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Propagation of Pressure Drop in Coalbed Methane Reservoir During Drainage Stage [PDF]
Advances in Geo-Energy Research, 2019 Numerical simulation was employed to investigate the propagation speed of pressure drop at the drainage stage in coalbed methane (CBM) reservoirs. A seepage model of single-phase water in CBM reservoirs was generated with the parameter from CBM well ZS39 in the Zhengzhuang block of the southern Qinshui Basin.
Yidong Cai, Yongkai Qiu
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Characterization of Fines Produced During Drainage of Coalbed Methane Reservoirs in the Linfen Block, Ordos Basin [PDF]
Energy Exploration and Exploitation, 2020 Coal fines produced during drainage of coalbed methane reservoirs can affect the permeability of the coal reservoir and damage production facilities such as downhole pumps, shafts, and valves. Thus, to clarify the mechanism of coal fines output is very important to high production of coalbed methane.
Aoxiang Zhang +2 more
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Coalbed Methane Emissions and Drainage Methods in Underground Mining for Mining Safety and Environmental Benefits: A Review [PDF]
Chemical Engineering Research and Design, 2019 Coalbed methane (CBM) drainage in underground coal mining is of significance to guarantee mining process safety and bring valuable environmental benefits, as the drainage could help to eliminate methane-related accidents, reduce greenhouse gas (GHG) emissions and provide a source of clean energy.
Zhongwei Chen, Bingyou Jiang, He Li
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Energy Exploration and Exploitation, 2013 Pulverized coal is one of the main controlling factors constraining the capacity of coal-bed methane wells during CBM drainage. The characteristics of pulverized coal can be used to identify the sources of the pulverized coal particles and to develop reasonable means of controlling pulverized coal output.
Yingchun Wei, Daiyong Cao
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Geomatics, Natural Hazards and RiskThe quality and efficiency of coalbed methane (CBM) drainage are critical for the safe production of coal mining enterprises in China. Air leakage should be prevented during CBM drainage because it can reduce drainage concentration and induce produce accidents such as coal seam spontaneous combustion.
Tianxuan Hao, Yiju Tang
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Procedia Earth and Planetary Science, 2011 AbstractAccording to the different features of 3D elements in the coalbed methane (CBM) surface and underground drainage system in the coal mining area, and adopting the 3DMAX static modeling of the drainage equipment and the dynamic modeling of the geological body based on the borehole data, the 3D model of the CBM drainage element in coal mining area
exaly +2 more sources
ProcessesThe Suzhou mining area contains abundant coalbed methane resources. Analyzing the hydrochemical characteristics of formation and drainage water from coalbed methane wells is of considerable importance for the efficient extraction of coalbed methane.
Caifang Wu
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Numerical simulation investigations of coalbed methane drainage performance with multilateral well [PDF]
Journal of Petroleum Exploration and Production Technology, 2021 AbstractA novel multilateral well for coalbed methane extraction was proposed in the study. There is a main wellbore at the longitudinal center of coal seam and four lateral wells at the horizontal center in the multilateral-well system. Compared with traditional drainage holes, multilateral-well system has a better performance on coalbed methane ...
Songze Liu +5 more
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Quantitative optimization of drainage strategy of coalbed methane well based on the dynamic behavior of coal reservoir permeability [PDF]
Scientific Reports, 2020 AbstractThe development of coalbed methane (CBM) is not only affected by geological factors, but also by engineering factors, such as artificial fracturing and drainage strategies. In order to optimize drainage strategies for wells in unique geological conditions, the characteristics of different stages of CBM production are accurately described based ...
Yan, Xinlu +6 more
openaire +2 more sources