摘要
以中马村矿27011工作面实际情况为背景,通过理论分析提出了井下钻孔一孔多用抽采技术,并开展了一孔多用钻孔现场工业性试验。试验结果表明,该一孔多用钻孔成功进行了水力压裂改造,影响范围长65m,宽50m;影响范围内采前预抽期平均瓦斯抽采纯量达到803.4m^3/d,是改造前的7倍。
Based on the actual condition of 27011 work face of Zhongmacun Mine, the gas drainage technology with multi-application drilling for underground boreholes was proposed by theoretical analysis and was applied into industrial field test. The results indicated that multi-application drilling technology for hydraulic fracturing was successfully carried out on surrounding rock. The influenced range was 65 meter on length and 50 meter on width. The average gas drainage volume was 803.4 m3/d in premining drainage period within the scope of influenced range, which is 7 times of that before hydraulic fracturing.
出处
《中国煤炭》
北大核心
2017年第12期155-158,共4页
China Coal
关键词
一孔多用
水力压裂
瓦斯抽采
multi-application drilling, hydraulic fracturing, gas drainage
