煤矿下向抽采钻孔积水诊断与积水量计算方法研究  

Study on diagnosis and calculation method of water accumulation in downward pumping borehole of coal mine

作　　者：马宏宇 赵清全 李朝 张倍宁 石明富 Ma Hongyu;Zhao Qingquan;Li Chao;Zhang Beining;Shi Mingfu(Chongqing Research Institute Co.,Ltd.,China Coal Technology&Engineering Group,Chongqing 400037,China;National Engineering Research Center of Coal Mine Safety Technology,Chongqing 400037,China;College of Resources,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;Yuwang Coal Mine,Yunnan-Eastern Yuwang Energy Co.,Ltd.,Qujing 655507,China;Huaneng Coal Technology Research Co.,Ltd.,Beijing 100070,China)

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037 [2]国家煤矿安全技术工程研究中心,重庆400037 [3]湖南科技大学资源环境与安全工程学院,湖南湘潭411201 [4]云南滇东雨汪能源有限公司雨汪煤矿,云南曲靖655507 [5]华能煤炭技术研究有限公司,北京100070

出　　处：《能源与环保》2022年第11期269-272,共4页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：重庆市安全生产(煤炭发展)专项(2020B182[5985]20015511,2020B182[5985]20015506);华能集团总部科技项目(HNKJ19-H10)。

摘　　要：煤矿下向抽采钻孔孔深、孔径小,且瓦斯抽采孔的数量和钻进深度急剧增加,如何有效地排出下向钻孔中积存的水,成为了高效抽采瓦斯、保证煤矿安全生产的一大难题。针对下向抽采钻孔积水的问题,在直观诊断法的基础上,提出了基于下向钻孔抽采流量、抽采负压变化曲线和放水量多数据关联分析的下向钻孔积水异常诊断方法。通过激光测距计算钻孔内积水量,建立积水判断标准,以提前预测下向钻孔积水状态,包括下向钻孔不积水、轻微积水、中等积水和积水严重,为及时采取有效的排水措施奠定基础。Due to the deep and small hole diameter of the underground extraction drilling holes in coal mine,the number of gas extraction holes and drilling depth increased sharply.Therefore,how to effectively discharge the water accumulated in the downward borehole has become a big problem for efficient gas extraction and coal mine safety production.For next to the extraction of borehole water problems,based on the intuitive diagnosis method on the basis of the proposed based on next to the borehole extraction flow,extraction pressure change under multiple correlation analysis of data curve and put the water to the drilling fluid anomaly diagnosis methods,drilling through the calculation of laser range inner product water,to establish water criterion,in order to predict in advance to a state of drilling fluid,Including no water,slight water,moderate water and serious water,for the timely adoption of effective drainage measures to lay the foundation.

关 键 词：下向钻孔积水 积水诊断 判断标准 积水量计算 

分 类 号：TD745[矿业工程—矿井通风与安全]