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| 水平长导线源瞬变电磁三维积分方程模拟 | |
| 引用本文： | 刘昱,李云哲,黄子莹. 水平长导线源瞬变电磁三维积分方程模拟[J]. 现代地质, 2010, 24(2) |
| 作者姓名： | 刘昱 李云哲 黄子莹 |
| 作者单位： | 1. 中国地质大学,地球物理与信息技术学院,北京,100083 2. 中国兵器工业集团,北方勘察设计院,河北,石家庄,050011 3. 河北省地质勘查局,水文工程地质勘查院,河北,石家庄,050011 |
| 摘 要： | 以体积分方程法模拟三维电磁正演问题的原理为基础,利用数值滤波方法实现了时间域水平长导线源的瞬变电磁三维问题的模拟,对电阻率、极化率、时间常数和频率相关系数的变化分别进行了三维数值模拟。为了提高计算的精度,变换过程中采用双精度数值滤波方法。利用偶极源的解析解和数值解的对比来检验数值滤波方法的可靠性。数值模拟结果表明,此种数值滤波方法精度高,结果稳定。高精度数值滤波结果为瞬变电磁法在石油、矿产、地热以及其他方面的应用提供了理论指导。 |
| 关 键 词： | 瞬变电磁法 三维模拟 长导线源 数值滤波 |
3D-TEM Modeling of a Long Conductive Line Resource |
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| LIU Yu,LI Yun-zhe,HUANG Zi-ying. 3D-TEM Modeling of a Long Conductive Line Resource[J]. Geoscience of Geosciences, 2010, 24(2) | |
| Authors: | LIU Yu LI Yun-zhe HUANG Zi-ying |
| Affiliation: | LIU Yu1,LI Yun-zhe2,HUANG Zi-ying3(1.School of Geophysics , Information Technology,China University of Geosciences,Beijing 100083,China,2.Beifang Institute of China Ordnance Industrial Geotechnial Investigation & Design,Shijiazhuang,Hebei 050011,3.Institute of Geological Exploration,Hebei Geological Department,China) |
| Abstract: | By using the forward method of 3D-TEM and cosine transform method,a TEM modeling of a long conductive resource was carried out.This paper studied the variabilities of resistivity,polarizability and the changing of time constants in the transient electromagnetic response of a long conductive line resource.For higher precision,the double precision numerical method is used.A dipole model was used to check the correction of cosine transform methods.The whole modeling method is useful and steady-going based on s... |
| Keywords: | transient electromagnetic method 3D modeling long conductive line resource numerical filter |
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