摘要
介绍了煤体结构的类型及我国煤层气的赋存,指出突出煤的煤层瓦斯含量高,容易突出,但极难开采,探讨了运用松动爆破作用,将煤层底板破坏成裂隙体,使扩散出的煤层气通过底板裂隙运移到钻孔中,再进行抽采利用的可行性。
This paper introduces the types of the coal texture and the occurrence of the coal-bed gas in China, points out that the content of the coal-bed gas in outburst coal seam is higher while the gas brust is easy but the gas exploitation is difficult, and probes into the feasibility of damaging the seam floor into fissured body by using the effect of the loose blasting and making the diffused coal-bed gas move into the boreholes through the floor cracks for extraction and utilization.
出处
《科技情报开发与经济》
2009年第15期146-148,共3页
Sci-Tech Information Development & Economy
关键词
突出煤
煤层气
开采方法
松动爆破
瓦斯抽采
outburst coal
coal-bed gas
exploitation method
loose blasting
gas extraction
