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神华宁煤集团金能煤业公司所属煤矿在使用穿层钻孔进行抽采瓦斯时,钻孔孔壁易坍塌,造成瓦斯抽采通道堵塞,影响瓦斯抽采效果。将筛管护孔工艺技术在该煤矿进行了适应性研究试验,以解决孔壁坍塌致堵塞钻孔的问题。
When the coal mine owned by Shennong Ningxia Coal Mining Group Jinneng Coal Mining Company uses the borehole for gas drainage, the borehole wall collapses easily, causing the blockage of the gas drainage channel and affecting the gas drainage effect. Screening hole protection technology in the coal mine adaptability research test to solve the hole wall collapse caused by plugging the hole problem.