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为了解决常规瓦斯抽采钻孔密封性差、瓦斯抽采浓度低的问题,提出了新型注气式主动封孔技术,通过其主动密封特性,实时封堵钻孔内部动态裂隙,进而提高瓦斯抽采浓度和抽采效率。注气式主动封孔技术与柔性膏体封孔材料联合封孔在经济性和瓦斯抽采效率上均优于其他钻孔密封工艺,适合在高瓦斯矿井大规模推广使用。
In order to solve the problem of poor gas tightness and low gas drainage in conventional gas drainage and extraction, a new type of active gas sealing technology is proposed, which can block the dynamic fractures in the borehole in real time through active sealing characteristics, and improve the gas drainage Concentration and pumping efficiency. Gas injection active sealing technology and flexible sealing material sealing composite materials are more economical and gas drainage efficiency than other drilling and sealing technology, suitable for large-scale promotion in high-gas mines.