State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources, China University ofMining and Technology
College of Safety Science and Engineering,Xi'an University of Science and Technology
Jiangsu DongkeSafety Research Institute
School of Safety Engineering,China University of Mining and Technology

为解决目前井下瓦斯抽采短钻孔、探放水钻孔及地质勘探钻孔等非受控近水平钻孔轨迹随钻测量发展缓慢问题,开展了非定向近水平钻孔轨迹参数解算及现场应用。 对近水平钻孔轨迹的5 种解算方法进行对比分析,选择平均角法并植入 Visual C++ 6.0 软件,开发了随钻轨迹测量数据处理及钻孔轨迹图展示软件,研发了抗地磁场干扰的随钻测量装置。 该软件通过对钻孔数据进行解算,展示了钻孔二维及三维形态轨迹图;将钻孔轨迹与矿井生产图结合,形成利于管理的轨迹跟踪底图,并根据偏差量划分出瓦斯抽采空白条带区域或勘探盲区。 在贺西煤矿进行工业性试验,获取了 11 个钻孔的钻孔轨迹,结合工作面抽采系统图对瓦斯抽采空白条带进行分析识别,绘制了钻孔轨迹图和瓦斯抽采空白区域分布图,取得了较好的现场应用效果。

In order to address the issue of accuracy deficiencies in uncontrollable borehole trajectories,including those used for gas extraction, water exploration, geological exploration, and more,calculations of the corresponding trajectory parameters were performed, followed by field application.The average angle method was implanted into Visual C++ 6.0 software based on a comparative analysisof five calculation methods for near-horizontal drilling trajectory. This helped develop software capableof processing trajectory measurement data and displaying trajectory diagrams during drilling, as well asan invention that resists geomagnetic interference during drilling. Through the calculation of borehole da-ta, the software displayed the two-dimensional and three-dimensional morphologic trajectory diagram ofthe borehole. By integrating borehole trajectory with mine production diagram, it formed a track-trackingbottom map that can be used for management, and it divided the blank strip area or exploration blind ar-ea of gas extraction according to the deviation amount. During the industrial trial conducted in Hexi CoalMine, 11 drilling trajectories were exhibited, and analysis and recognition of blank strips of gas extrac-tion were also achieved by referring to the gas extraction drawing of the working face. Field applicationeffects were achieved by mapping drilling trajectories and distributing the blank area of gas extraction.

国家自然科学基金项目(51874297);中国矿业大学自制实验教学仪器设备重点项目(SZZ2022Z002);中国矿业大学实验技术

1 钻孔轨迹设计基础
1.1 钻孔轨迹基本参数
1.2 近水平钻孔轨迹的解算方法
2 数据处理软件的开发
2.1 数据处理系统设计
2.1.1 软件整体设计
2.1.2 随钻测量装置的结构组成
2.2 随钻轨迹测量数据处理软件的功能实现
2.2.1 钻孔轨迹参数录入
2.2.2 钻孔轨迹参数解算
2.2.3 单孔钻孔轨迹绘制
2.2.4 工作面钻孔上图
3 数据处理软件的应用
3.1 JWC-2型矿用钻孔随钻轨迹测量系统概述
3.2 现场测试
3.2.1 工作面概况
3.2.2 钻孔布置形式
3.3 数据结果分析
3.3.1 单钻孔数据分析
3.3.2 钻孔轨迹上图分析
4 结 论