寺河煤矿定向高位钻孔瓦斯抽采研究

Research on Directional High-level Borehole Gas Extraction in Sihe Coal Mine

寺河煤矿作为瓦斯突出矿井,在工作面回采过程中采空区有大量瓦斯涌出。依托定向高位钻孔瓦斯抽采技术,研究解决寺河煤矿采空区瓦斯抽采利用问题。分析了定向高位钻孔瓦斯抽采技术,并对定向高位钻孔瓦斯抽采施工进行了探讨。该技术应用于寺河煤矿采空区瓦斯治理具有瓦斯抽采稳定、施工工期短、成孔率高等优点。

Sihe Coal Mine is a gas outburst mine,and in the process of working face mining,there is much gas gushing out in the goaf.Relying on directional high-level borehole gas extraction technology,the problem of gas extraction and utilization in goaf of Sihe Coal Mine was studied and solved.This paper analyzed the directional high-level borehole gas extraction technology,and discussed the construction of directional high-level borehole gas extraction.The application of this technology to gas control in goaf of Sihe Coal Mine has the advantages of stable gas extraction,short construction period and high porosity.