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International journal of mining science and technology, ISSN 2095-2686, 2012, Volume 22, Issue 4, pp. 533 - 538
Pressure relief to increase permeability significantly improves gas extraction efficiency from coal seams. In this paper we report results from simulations... 
燃气流量 | 低渗透煤层 | 瓦斯抽放 | FLAC3D | 泄压阀 | 应力变化 | 煤与瓦斯突出 | 瓦斯抽采 | Penetrate layer | Gas extraction | Permeability | Slotted | Pressure relief and permeability increase
Journal Article
International journal of mining science and technology, ISSN 2095-2686, 2012, Volume 22, Issue 4, pp. 533 - 538
Journal Article
05/2011
The invention discloses an in-seam or across-seam double-power quick drilling and chambering integrated device and method. The device is mainly composed of a... 
EARTH DRILLING, e.g. DEEP DRILLING | FIXED CONSTRUCTIONS | EARTH DRILLING | OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS | MINING
Patent
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