煤田地质与勘探

2003, (02) 61-62

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抽放瓦斯顺煤层长钻孔施工技术
Drilling technology of long hole using for discharging gas from coal seams

郝世俊,石智军,孙荣军,刘卫东
HAO Shi-jun;SHI Zhi-jun;SUN Rong-jun;LIU Wei-dong (Xi'an Branch;

摘要(Abstract):

介绍了抽放瓦斯顺煤层长钻孔试验情况。在试验中使用定向钻进技术施工了3个钻孔,有1个试验孔深度达509.03m,是目前国内最深的全煤层长钻孔,平均纯钻进时效24.4m/h。这些抽放孔的瓦斯涌出量均达到2.0~2.5m~3/min。
It is introduced that the test of long drilling hole using for discharging gas from coal seams. Executed 3 hole using directional drilling technology,one drilling hole depth is up to 509.03 m,which is the longest drilling hole in coal seams,average sheet drilling speed is up to 24.4 m/h.Discharge of all these hole is up to 2.0-2.5 m3/min.

关键词(KeyWords): 抽放瓦斯;顺煤层长钻孔;定向钻进
discharging gas;long drilling hole in coal seam; directional drilling

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作者(Authors): 郝世俊,石智军,孙荣军,刘卫东
HAO Shi-jun;SHI Zhi-jun;SUN Rong-jun;LIU Wei-dong (Xi'an Branch;

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