| 大地电磁测深应用于地热勘探 |
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| 引用本文： | 李朝林,裴忠,金秀芹,王力斌,王文瑞.大地电磁测深应用于地热勘探[J].中国煤炭地质,2008(9):68-71. |
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| 作者姓名： | 李朝林 裴忠 金秀芹 王力斌 王文瑞 |
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| 作者单位： | 吉林省煤田地质物探公司,吉林长春130033 |
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| 摘 要： | 根据某小区的实际地质情况,使用V5-2000大地电磁测深仪,应用大地电磁法（MT）,对该小区进行了勘探。勘测中使用的频率范围为0.0005493～320Hz,分为两个频段;布极方式为“十、T、L”型,电极距一般为50～150m,利用井旁测深点反演电性分层结果与测区内测线的反演电性分层结果进行对比验证。通过对勘测结果进行解释,掌握了该小区内基底埋深及断裂构造发育情况,分析该区可能有含水的砂岩体存在,并推断地热水赋存深度为2600m。
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| 关 键 词： | 趋肤深度 频率 相对视电阻率 大地电磁测深 |
Magnetotelluric Sounding Used in Geothermal Exploration |
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| Li Chaolin,Pei Zhong,Jin Xiuqin,Wang Libin and Wang Wenrui.Magnetotelluric Sounding Used in Geothermal Exploration[J].Coal Geology of China,2008(9):68-71. |
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| Authors: | Li Chaolin Pei Zhong Jin Xiuqin Wang Libin and Wang Wenrui |
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| Institution: | (Jilin Provincial Coal Geological Exploration Company, Changchun, Jilin 130033) |
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| Abstract: | Based on practical geological condition in a residential village, used N5-2000 magnetotelluric sounder to carry out prospecting. Frequency range used is 0.0005493-320Hz, two frequency ranges divided; configuration of electrodes is ＂ 十, T and L＂ typed, electrode interval generally is 50-100m, contrasfingly verified through well side sounding point electrical layering inversion result with surveying line electrical layering inversion result. Through surveying result interpretation, found out basement depth and faulted structure development in the residential village; have deduced the existing of water-bearing sandstone in the area and geothermal water hosting depth is 2600m. |
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| Keywords: | skin depth frequency relative apparent resistivity magnetotelluric sounding |
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