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基于传感器融合的水平定向钻机轨迹测量

20    2020-05-27

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作者:杨阿兰1,2

作者单位:1. 河南科技大学应用工程学院, 河南 三门峡 472000;
2. 三门峡职业技术学院, 河南 三门峡 472000


关键词:传感器融合;随钻测量;轨迹;断层;钻孔结构


摘要:

矿用水平定向钻机进尺测量和轨迹跟踪的速度和准确性直接关系到开采效率和安全性。综合国内外研究现状,以石壕煤矿井下断层为研究对象,提出采用分段积分测量进尺消除累积误差的孔口钻杆进尺测量方法,并利用模式识别测量固定进尺修正加速度进尺。在此基础上,对孔底随钻姿态参数开展实时测量,获得每个测量点钻孔的方位角、倾角以及深度。室内试验表明:该方法在置信度为95%时,工具角、俯仰角、方位角最大误差分别为±0.6°、±0.8°和±1.1°。现场试验表明:最大测量误差水平方向为0.08 m,垂直方向为0.15 m,末端钻孔俯仰角为0.2°,方位角为0.5°。


Research on trajectory measurement of horizontal directional drilling rig based on sensor fusion
YANG Alan1,2
1. College of Applied Engineering, Henan University of Science and Technology, Sanmenxia 472000, China;
2. Sanmenxia Polytechnic, Sanmenxia 472000, China
Abstract: The speed and accuracy of drilling footage measurement and trajectory tracking of horizontal directional drilling rig have great influence on mining efficiency and safety. Taking the underground faults in Shihao Coal Mine as the research object, the method of measuring the drill rod footage with piecewise integral footage to eliminate accumulated errors was put forward. The acceleration feed method was corrected by measuring fixed feed parameters with pattern recognition. On this basis, real-time measurement of bottom-hole while-drilling attitude parameters was carried out. And the azimuth angle, dip angle and depth of borehole were obtained at each measuring point. Laboratory tests show that the maximum errors of tool angle, pitch angle and azimuth angle are ±0.6°, ±0.8°, ±1.1°, when the confidence of the method is 95%. Field tests show that the maximum measurement error is 0.08 m in horizontal direction, 0.15 m in vertical direction, 0.2° in pitch and 0.5° in azimuth.
Keywords: sensor fusion;measurement while drilling;trajectory;fault;drilling structure
2020, 46(5):39-44  收稿日期: 2019-04-02;收到修改稿日期: 2019-06-29
基金项目:
作者简介: 杨阿兰(1985-),女,陕西宝鸡市人,讲师,硕士,主要从事工程测量研究
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