Details of the Abstract
| Title of paper | Three-dimensional inversion of transient EM data with IP effect |
| List of authors | Xinchong Zhang, Changchun Yin |
| Affiliation(s) | Jilin University, Jilin University |
| Summary | The transient electromagnetic (TEM) method, as a low-cost and high-efficiency exploration technology, plays an important role in the exploration of mineral resources. The polarizable bodies are often developed in metal deposits, and the induced polarization (IP) effect caused by them can distort the late-time signal in TEM data or even reverse its sign. The traditional inversion only considering resistivity can not effectively invert the data contaminated by the IP effect, which brings difficulties to the application of TEM in areas with IP. To solve this problem, we propose a three-dimensional (3D) TEM inversion method that takes into account the IP effect. The advantage of this method is that it can directly do forward and inverse modeling in the time domain without needing any transformation. Numerical experiments show that high-accuracy modeling results can be achieved, while the resistivity and chargeability of the model assumed can be inverted successfully. This proves the effectiveness of the method for the inversion of TEM data with the IP effect. |
| Session Keyword | 2.0 EM theory, modelling and Inversion |
| File upload |
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