| 磁法探测上海市掩埋煤气凝水井 |
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| 作者姓名： | 李宏建 |
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| 作者单位： | 上海勘察院 |
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| 摘 要： | 本文论述了在城市中探测掩埋煤气凝水井的一种磁测方法,对由凝水井产生的磁场及磁场梯度进行了正演计算,对城市环境中的干扰背景磁场进行了理论分析,指出采用磁梯度探测方法能够有效的压制干扰背景磁场,突出有效异常,是城市中进行磁法探测的一种简便有效的方法。文中还就探测方法及磁梯度异常的反演计算进行了讨论。
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| 关 键 词： | 磁法勘探 煤气管道 凝水井 掩埋 |
MAGNETIC DETECTION OF THE CONGEALING WATER WELLS OF COAL GAS BURIED IN SHANGHAI |
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| Authors: | Li Hongjian |
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| Institution: | Shanghai Institute of Geological Investigation And Surveying |
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| Abstract: | This paper discusses a magnetic method of detecting the congealing water well of coal gas buried in the city, makes a direct calculation of the magnetic field its gradiet caused by the congealing water well, and a theoretical analysis of the magnetic field of interferential background of the environment of the city. It shows that the use of the detecting method of megnetic fieldgradient can depress effectively the magnetic field of interferential background and highlight the effective abnormality, and that it is a simple and effective method of taking magnetic exploration in the city. It discusses the detecting method and the reverse calculation of the abnormality of magnetic field gradient. |
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| Keywords: | intensity of magnetization poisson formula abnormality of magnetic field gradient |
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