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  5. Induced drill-spray during hydraulic slotting of a coal seam and its influence on gas extraction

Induced drill-spray during hydraulic slotting of a coal seam and its influence on gas extraction

来源 :矿业科学技术学报：英文版 | 被引量 : 0次 | 上传用户：sisu16113
【摘 要】
：
Hydraulic slotting can induce drill spray in a gassy,low permeability coal seam.This then influences subsequent gas extraction.This paper describes the drill sp
【作 者】
：
Shen Chunming Lin Baiquan Zhan 
【机 构】
：
School
【出 处】
：
矿业科学技术学报：英文版
【发表日期】
：
2012年6期
【关键词】
：
Slotted Drill-spray Water jet Pressure RELIEF and PERMEABILITY INCREASE Gas extr 
【基金项目】
：
support provided by the State Key Basic Research Program of China(No.2011CB201205)
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Hydraulic slotting can induce drill spray in a gassy,low permeability coal seam.This then influences subsequent gas extraction.This paper describes the drill spray phenomenon from a mechanical perspective and analyzes the effects of water jet damage durin
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