定向长距离钻孔探放采空区水在新集矿区的研究应用  

Research and Application of Directional Long-Distance Drilling for Water Detection and Drainage in Mined-Out Areas in the Xinjie Mining Area

作　　者：张文奉 ZHANG Wenfeng(Geological Survey Company,China Coal Xinji Energy Co.,Ltd.,Huainan,Anhui Province,232000 China)

机构地区：[1]中国中煤新集能源股份有限公司地勘公司,安徽淮南232000

出　　处：《大众科学》2024年第16期56-59,共4页China Public Science

摘　　要：针对常规探放水技术探放采空区水安全距离近、探测距离短、探测范围小、钻孔轨迹不精确等因素.利用长距离定向钻进螺杆马达实时定向的优势保证钻孔在稳定岩层平稳穿行,利用轨迹精确控制的优势准确命中"靶点",从高至低依次降低采空区积水水位,并通过分支孔技术预留分支点,解决了沿空巷道循环前探逐步降压的复杂问题,实现了远距离探测、轨迹精确、精准探放采空区水目的.Conventional water exploration techniques for detecting and draining water from mined-out areas face issues such as short detection distances,small detection ranges,and imprecise drilling trajectories.To address these problems,the advantages of long-distance directional drilling with screw motors for real-time orientation are utilized.This approach ensures that the drilling passes smoothly through stable rock layers and accurately hits the'target'using precise trajectory control.By sequentially lowering the water level in the mined-out areas from high to low,and employing branch hole technology to reserve branching points,the complex issue of gradually reducing pressure along the empty roadway is resolved.This method achieves long-distance detection with precise trajectories and accurate water detection and drainage in mined-out areas.

关 键 词：定向 长距离 钻孔 采空区水 

分 类 号：TD745[矿业工程—矿井通风与安全]