| 时移电阻率反演模拟研究 |
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| 引用本文： | 苏鹏,杨进.时移电阻率反演模拟研究[J].物探与化探,2021(1):159-164. |
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| 作者姓名： | 苏鹏 杨进 |
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| 作者单位： | 中国地质大学（北京）地球物理与信息技术学院 |
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| 基金项目： | 国家自然科学基金项目“深部多金属矿勘探中天然场激电法正反演计算和野外试验研究”(41374133)。 |
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| 摘 要： | 电阻率法可用于地表浅层的探测,也可用于对动态地下目标进行监测。对于监测数据的反演,不同数据集的单独反演存在一定缺陷,为此本文在常规电阻率反演算法的基础上,推导了时移电阻率反演公式,实现了时移反演算法程序;为了论证时移反演算法对动态地下目标成像的优越性,建立一组多个正演模型,利用模拟数据进行单独反演和时移反演,并对比两种方法的结果。研究表明,尽管两种算法都能圈定动态地下目标体,但时移反演算法可以消除不同观测数据集中所包含的随机误差,减少假异常的出现。
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| 关 键 词： | 电阻率法 时移反演 数值模拟 |
Simulation study of inversion of time-lapse resistivity |
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| SU Peng,YANG Jin.Simulation study of inversion of time-lapse resistivity[J].Geophysical and Geochemical Exploration,2021(1):159-164. |
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| Authors: | SU Peng YANG Jin |
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| Institution: | (School of Geophysics and Information Technique,China University of Geosciences,Beijing 100083,China) |
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| Abstract: | The resistivity method can be used for the detection of near ground surface,and can also be employed to monitor dynamic underground targets.For the inversion of monitoring data,the single inversion of different data sets has certain defects.For this reason,on the basis of the traditional resistivity inversion algorithm,the time-lapse resistivity inversion formula was derived and the time-lapse inversion program was realized;for the purpose of demonstrating the superiority of the time-lapse inversion algorithm for imaging of dynamic underground targets,a set of multiple forward models was established,and the simulation data were used for single inversion and time-lapse inversion.The results show that,although both algorithms can draw the dynamic underground targets,the time-lapse inversion algorithm can eliminate random errors contained in different observation data sets and reduce the occurrence of inversion artifacts. |
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| Keywords: | resistivity method time-lapse inversion numerical simulation |
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