实践表明，地面钻井对抽放采动区域瓦斯效果较好。
Practice indicated that the surface boreholes have better effect on gas drainage from mining area.
煤矿采动影响区是地面煤层气开发或井下瓦斯抽放的有利部位。
Infection zones of coal mining are favorable place to coalbed methane recovery in ground or gas extraction in underground.
地面钻井抽采采动影响煤层及采空区瓦斯是进行煤矿瓦斯治理和抽采利用的有效方法。
Surface borehole well is a simply and high performance method to drawing coal bed and goaf gas which controlling and making good use of the coal mine gas.
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