Reasonable minimum sealing length of in-seam boreholes for coal mine methane drainage: a case study

2019 ◽  
Vol 42 (18) ◽  
pp. 2199-2213
Author(s):  
Kai Wang ◽  
Zhen Lou ◽  
Guoying Wei ◽  
Weidong Lu ◽  
Feng Du ◽  
...  
Keyword(s):  
Coal Mine ◽  
Coal Mine Methane ◽  
Methane Drainage

Effects of permeability anisotropy on coal mine methane drainage performance

2021 ◽  
Vol 86 ◽  
pp. 103733
Author(s):  
Zhen Lou ◽  
Kai Wang ◽  
Jie Zang ◽  
Wei Zhao ◽  
Binbin Qin ◽  
...  
Keyword(s):  
Coal Mine ◽  
Coal Mine Methane ◽  
Methane Drainage ◽  
Permeability Anisotropy

Coal Mine Methane Drainage and Comprehensive Utilization in China

2013 ◽  
Vol 295-298 ◽  
pp. 3023-3026 ◽  
Author(s):  
Qing Ye ◽  
Yan Pi ◽  
Zhen Zhen Jia ◽  
Hai Zhen Wang
Keyword(s):  
Coal Seam ◽  
Coal Mine ◽  
Chemical Production ◽  
Efficient Utilization ◽  
Effective Utilization ◽  
Coal Mine Methane ◽  
Development Stages ◽  
Methane Drainage ◽  
Coal Seam Methane ◽  
Methane Utilization

According to situation of coal mine methane drainage and utilization, the five experienced development stages of coal mine methane drainage technology was summarized, the reasons of low rate of coal mine methane drainage were analyzed. Coal-seam methane utilization was analyzed from methane purification, methane generating electricity, chemical production, methane for civil utilization and utilization as automobile fuel etc. With the coal seam methane drainage quantity is more and more, the emissions requirements is more and more strict, so the emission reduction and effective utilization of this energy is important to accelerate efficient utilization of coal methane, reduce greenhouse gas emissions, protect environment, alleviate the supply contradiction of energy and realize sustainable development of coal mine etc.

Analysis of Coal Mine Methane Development Technology in China

2013 ◽  
Vol 868 ◽  
pp. 326-330
Author(s):  
Xin Sun ◽  
Bai Sheng Nie ◽  
Sheng Chu Huang ◽  
Shou Tao Hu
Keyword(s):  
Coal Seam ◽  
Coal Mine ◽  
Coal Bed ◽  
Pressure Relief ◽  
Coal Mine Methane ◽  
Methane Drainage ◽  
Soft Coal ◽  
Methane Extraction ◽  
Development Technology ◽  
Soft Coal Seam

This paper introduces occurrence characteristics of coal bed methane in China, and analyses the influence of coal seam permeability on coal mine methane extraction. In addition, it presents the mechanism of increasing permeability by pressure relief. Lastly, the methane extraction technologies are discussed, and the applicable conditions of these technologies are analyzed. It is seen that choosing appropriate methane drainage technology, often in combination with several technologies including ground drilling, underground drilling, and pressure relief and permeability improving measures, is crucial for geological complex coal seam, especially low permeability soft coal seam.

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