芦岭煤矿卸压区瓦斯综合抽采试验及分析

Integrated technology of coalbed methane drainage with ground well in Luling coal mine

煤炭开采造成煤储层卸压,煤储层参数将发生巨大变化,并对瓦斯储存和运移产生极大影响。分析了淮北芦岭煤矿卸压区地面垂直井煤层气抽采试验,研究了卸压区地面和井下瓦斯综合抽采技术及方法。结果显示,在低透气性煤层卸压区进行地面和井下瓦斯综合抽采,不仅有利于煤矿安全生产,而且可大大提高瓦斯采收率及其开发的经济效益。

Coal mining causes the pressure releasing from coal reservoir, the coal reservoir parameters＇ great changing, and has the enormous influence on the coalbed methane storage and the migration. The experiment achievement of Luling coal mine, concerning ground well drainage from pressure release area and related ground well and underground well integrated drainage technology, indicated that the coalbed methane drainage from coal seams with low permeability in the release area of pressure is not only an advantageous to the coal mine safety production, but also can enhance recovery ratio of the coalbed methane enormously and enhances the economic efficiency of the coalbed methane development.