摘要
通过引进澳大利亚生产的VLD-1000型千米定向钻机,分析余吾煤业煤层的地质条件与瓦斯分布,结合多年的钻孔施工经验,提出了高位裂隙钻孔对高瓦斯矿井进行"采空区抽采"技术,实践证明,该技术不仅能有效解决瓦斯涌出量大及抽采难度高等问题,还能为今后高瓦斯煤层的瓦斯治理提供技术借鉴。
VLD-1 000 m directional drilling machine of Australia being introducing,a new goaf drainage technology for high gas mine of high level fracture boreholes has been put forward,by analyzing geological condition and gas distribution of Yuwu coal mine and combining with the drilling construction experience for many years,which has been proved that this technology not only can solve the problem effectively of large amount of gas emission and high difficulty of gas drainage,but also can provide technical reference of gas governance for high gas mine in the future.
出处
《煤炭技术》
CAS
北大核心
2014年第11期32-34,共3页
Coal Technology
关键词
千米定向钻机
瓦斯抽采
高位裂隙钻孔
VLD-1 000 m directional drilling machine
gas drainage
high level fracture boreholes
