突出煤层地面直井压裂抽采瓦斯技术探析  

Analysis of Gas Extraction Technology by Fracturing and Draining Surface Straight Well in Outburst Coal Seam

作　　者：曹阳 Cao Yang(Yangquan Xinyu Geotechnical Engineering Co.,Ltd.,Shanxi Yangquan 045000)

机构地区：[1]阳泉新宇岩土工程有限责任公司,山西阳泉045000

出　　处：《山东煤炭科技》2020年第12期120-122,125,共4页Shandong Coal Science and Technology

摘　　要：针对阳煤新景矿区3#煤层瓦斯含量高、井下钻孔抽采瓦斯效果差、突出动力现象频繁的难题,提出建立以复杂构造带地面直井压裂预抽瓦斯为主、井下钻孔抽采瓦斯为辅的突出煤层立体防突技术体系。设计施工期间,工作面进尺效率提高1.7倍,未出现明显的突出动力现象,有效地抑制了瓦斯突出问题,确保了掘进工作面的安全生产。Aiming at the problems of high gas content, poor gas drainage effect and frequent outburst dynamic phenomenon in No.3 coal seam of Xinjing mining area of Yangquan Coal Mine, a three-dimensional outburst prevention technology system of outburst coal seam is proposed, which is based on surface vertical well fracturing gas drainage in complex structural belt and assisted by underground drilling gas drainage. During the design and construction period, the footage efficiency of the working face was increased by 1.7 times without obvious outburst dynamic phenomenon. The gas outburst problem was effectively restrained and the safety production of driving face was ensured.

关 键 词：突出煤层 直井压裂 水力压裂 气相压裂 钻屑解吸指标 

分 类 号：TD712+.6[矿业工程—矿井通风与安全]