瓦斯抽采钻孔主动承压式密封技术及应用  

Active confined pressure sealing technology on gas extraction drilling and application

作　　者：李琦[1] 陈学习[2] 陈鹏[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]华北科技学院安全工程学院,北京东燕郊101601

出　　处：《华北科技学院学报》2012年第2期21-25,共5页Journal of North China Institute of Science and Technology

摘　　要：针对目前瓦斯抽采钻孔密封效果差、漏气现象严重、瓦斯抽采浓度过低等问题,提出了主动承压式密封技术,通过承压注浆及主动支护抽采钻孔,可以有效封堵抽采钻孔初期漏气通道,并且避免后期漏气通道的产生,从而提高封孔质量。在国投河南新能开发有限公司王行庄煤矿进行了应用试验,结果表明,主动承压式封孔技术可以长时间可靠的密封抽采钻孔,大幅度提高瓦斯抽采浓度。In view of the current poor gas drainage sealing effect problems, including serious leakage phenomenon, too low gas extraction concentration , ete, the paper put forward the active confined pressure sealing technology, through the pressure grouting and active supporting extraction drilling, can be effective in blocking extraction early drilling leak channel, and avoiding the gen- eration of late leak channel, so as to improve the hole sealing quality. Application test was carried out in Wang Xing Zhuang Mine of SDIC HeNan New Energy Development Co. , LTD, the experimental results show that the active confined pressure sealing technology can be long time reliable seal drilling and greatly improve concentration of gas extraction.

关 键 词：瓦斯抽采 主动承压 封孔工艺 密封材料 

分 类 号：TD712.6[矿业工程—矿井通风与安全]