贵州煤矿地面抽采瓦斯方案分析

煤层瓦斯含量高,透气系数低,瓦斯严重威胁矿井的正常生产。根据贵州煤矿煤层瓦斯赋存特点,结合国内外地面抽采瓦斯技术,提出地面钻井抽采矿井采空区瓦斯,多分支井抽采矿井煤层瓦斯抽采方案,预计将取得良好的抽采效果。

Scheme Analysis of Coal Gas Extraction Ground in Guizhou

High gassy seam groups with low permeability has brought serious threat to the safety of the coal mines.According to the characteristics of coal seam gas occurrence in Guizhou,in combination with domestic and foreign gas extraction technology,a scheme is put forward.In the scheme,the goaf gas was drilled by smoke mining and multiple branching coal mining wells,which is expected to have good effects on extraction.