| 平煤十三矿穿层钻孔抽采瓦斯浓度异常分析 |
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| 引用本文： | 张福旺.平煤十三矿穿层钻孔抽采瓦斯浓度异常分析[J].淮南职业技术学院学报,2014(5):1-4. |
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| 作者姓名： | 张福旺 |
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| 作者单位： | 平顶山天安煤业股份有限公司勘探工程处,河南 平顶山,467000 |
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| 摘 要： | 针对突出煤层穿层钻孔抽采瓦斯浓度低的问题,从钻孔成孔过程的动力现象、成孔后孔口瓦斯流量、钻孔见煤长度和成孔后瓦斯抽采期间钻孔渗水等方面,分析了平煤十三矿己15.17-11111机巷底抽巷D12钻场附近和D23钻场附近,穿层钻孔抽采瓦斯浓度相差较大的原因;研究结果对改善穿层钻孔抽采瓦斯浓度效果,加快突出煤层的瓦斯治理具有借鉴作用。
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| 关 键 词： | 穿层钻孔 瓦斯抽采 瓦斯浓度 |
Analysis on Abnormal Drainaged Gas Concentration of Coal Seam in Pingdingshan No .13 Coal M ine |
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| ZHANG Fu-wang.Analysis on Abnormal Drainaged Gas Concentration of Coal Seam in Pingdingshan No .13 Coal M ine[J].Journal of Huainan Vocational & Technical College,2014(5):1-4. |
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| Authors: | ZHANG Fu-wang |
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| Institution: | ZHANG Fu-wang (Exploration Agency of Tian＇an Coal Mining Co. , Ltd. in Pingdingshan, Pingdingshan Henan 467000) |
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| Abstract: | For the problem of drainage low gas concentration by cross rock layer borehole in outburst coal seam,the reasons cause gas concentration differ greatly between D12 and D23borehole field,at under drainage roadway of No.11111 mechanical roadway in Pingdingshan No.13 Coal Mine,are analyzed,such as dynamic phenomenon during drill hole,gas flow from borehole,length of borehole in coal seam and water seepage from borehole.The results are useful as references for increasing gas concentration in cross rock drainage borehole in outburst tendency coal seam. |
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| Keywords: | cross rock layer borehole gas drainage gas concentration |
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