井上下联合抽采瓦斯技术在寺河矿的应用

Application of Combined Gas Drainage Technology by Both Surface and Underground Boreholes in Sihe Mine

为了解决低渗透煤层工作面瓦斯突出问题,提出了井上下联合抽采瓦斯技术,并将这一项新的瓦斯治理技术在寺河矿进行了工业性试验。应用结果表明:采用地面压裂和井下联合抽采技术克服了低渗煤层瓦斯抽采效果差的缺陷,在渗透性较低的煤层及抽采掘接替很紧张的矿井可以得到很好的应用,有效地解放了生产力,提高了矿井的瓦斯抽采率。

In order to solve the problem of gas outburst in the face oflow,permeability coal seam, combined gas drainage technology by both surface and underground boreholes is proposed,and a new gas treatment technology is tested in-Sibe mine.The application results show that the use of combined gas drainage technology by both surface and underground boreholes to overcome the shortcomings of low permeability coal gas drainage is poor,in the lower permeability of the coal seam mining and mining for the very tight mine can be very good application,effective to liberate the productive forces and improve the rate of gas drainage mines.