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Mapping Small Conductive Objects by Vertical EM38 Acquistion
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface Geoscience 2014 - 20th European Meeting of Environmental and Engineering Geophysics, Sep 2014, Volume 2014, p.1 - 5
Abstract
SUMMARY
In this study, we propose to evaluate the potential of making measurements with a vertical EM38 device. We first show the related sensitivity that describes the 3D ground illumination. Then, we generate synthetic data computed by 3D spectral forward modelling. The analysis of the sensitivities as well as the synthetic data show that this configuration allows to image well small conductive targets but is strongly affected by the direction of acquisition. A first test of dual azimuth acquisition across a buried pipe is presented.
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