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Abstract

Summary

Recently, the numerical techniques have considerably improved the data interpretation, making the Electrical Resistivity Tomographies common field methods. Due to the geological complexity, the subsurface is inherently heterogeneous, and this heterogeneity may results in anisotropic electrical propagation. Then, considering anisotropy seems essential to accurately interpret electrical resistivity surveys. However, literature shows that if electrical anisotropy is recently being considered model-wise, it is seldom considered for characterization and interpretation. In this paper, we present an electrical anisotropic forward- and inverse-problem 2.5D FD study of a highly anisotropic aquifer. We use the numerical anisotropic inversion tool we developed on a real case study in Saint-Lambert-de-Lauzon in Canada. It appears that the quantified anisotropy has a significant influence on the inversion results. The proposed finite differences scheme gives results in good agreement with the cases we considered in this study. It tends to prove that anisotropy should be considered in any electrical study when its presence is assumed.

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/content/papers/10.3997/2214-4609.201800828
2018-06-11
2024-04-23

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201800828
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A Finite Difference Scheme for Anisotropic Electrical Inversion in a Highly Anisotropic Aquifer
Conference Proceedings 2018, 1 (2018); https://doi.org/10.3997/2214-4609.201800828
/content/papers/10.3997/2214-4609.201800828
/content/papers/10.3997/2214-4609.201800828
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