瞬变电磁精准探查技术参数优选方法与应用
Technical Parameter Optimization Method and Application of Transient Electromagnetic Precise Exploration
黄姣姣1
作者信息
- 1. 陕西省一八五煤田地质有限公司,陕西 榆林 719000
- 折叠
摘要
瞬变电磁法因探查富水异常区具有操作方便、探测效率高等优点而被广泛采用.为了实现瞬变电磁法对袁大滩煤矿富水异常区的精准探查,分析了瞬变电磁法的技术原理,得出影响探查精度的主要技术参数为探查频率和叠加次数.通过控制变量法对测试剖面进行试验,最终确定最佳探查频率为0.625 Hz,最佳叠加次数为 200 次,以此为依据对袁大滩煤矿实施了精准探查,最终探查出了127个富水异常区,为其他区域利用瞬变电磁法精准探查富水异常区提供了参考依据.
Abstract
Transient electromagnetic method is widely used to explore the water-rich abnormal area because of its convenient operation and high detection efficiency.In order to realize the accurate exploration of the water-rich abnormal area of Yuandatan Coal Mine by transient electromagnetic method,the technical principle of transient electromagnetic method exploration was analyzed,and it was concluded that the main technical parameters affecting the exploration accuracy were exploration frequency and superposition times.The test profile was tested by the control variable method.Finally,the optimal exploration frequency was 0.625 Hz and the optimal superposition times were 200 times.Based on this,Yuandatan Coal Mine was accurately explored,and 127 water-rich abnormal areas were finally explored.It can provide a basis for other regions to use transient electromagnetic method to accurately detect water-rich anomaly areas.
关键词
富水异常区/瞬变电磁/探查/技术参数Key words
water-rich abnormal area/transient electromagnetic/exploration/technical parameter引用本文复制引用
出版年
2024
NETL
NSTL
万方数据