A-B胶封孔工艺在煤矿顺层抽采钻孔中的应用性试验

Mining Safety & Environmental Protection(2013)

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Abstract
针对目前煤矿常用的钻孔封孔工艺技术存在的不足,提出了A-B胶封孔工艺,并在松藻煤电公司打通一矿W2704顺层钻孔进行了封孔试验,结果表明,该工艺不仅操作简单、方便、节约成本,而且还可提高钻孔瓦斯抽采浓度。采用A-B胶封孔工艺后,钻孔抽采瓦斯的平均浓度为42.4%~60.2%,相比采用马丽散F封孔提高了12.2%~24.5%。
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Coal Permeability
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