摘要
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 crossing borehole is used for gas extraction in the coal mine of Jinneng coal mining branch, Shenhua Ningxia coal mining group, the hole wall collapse easily, cause gas extraction channel blockage, affect the effect of the gas extraction. The adaptability of screen pipe hole-protected technology is studied in this coal mine, to solve the problem of hole wall collapse.
出处
《煤炭技术》
CAS
北大核心
2016年第10期162-164,共3页
Coal Technology
关键词
筛管护孔工艺技术
穿层钻孔
瓦斯抽采效果
screen pipe hole-protected technology
crossing borehole
gas extraction effect
