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| A borehole TEM anomaly inversion method |
| YANG Yi, DENG Xiao-Hong, ZHANG Jie, WU Jun-Jie, WANG Xing-Chun |
| Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China |
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Abstract Borehole TEM is widely used in deep prospecting and has achieved fruitful results;nevertheless, qualitative and semi-quantitative interpretation is mainly used in borehole TEM data Interpretation at present, which restrictes the use and popularization of this method to a large extent. In view of this situation, the authors studied pure anomaly inversion of TEM based on current filament by using genetic algorithm.With this method, we can accurately determine the size, dip and center coordinates of the in-hole or off-hole abnormal body.The inversion results of sheet model forwarded by Maxwell software and measured data further prove the correctness and applicability of the algorithm.
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Received: 15 May 2014
Published: 10 August 2014
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