Publisher : Korean Society of Earth and Exploration Geophysicists
DOI : 10.7582/GGE.2016.19.1.045
Title & Authors
Resistivity Survey Using Long Electrodes Cho, In-Ky; Lee, Keun-Soo; Kim, Yeon-Jung; Kim, Rae-Young;
Generally, a point source has been routinely used in the electrical resistivity measurements because of easy installation. If steel-cased wells are used as long electrodes, we can expect the better depth of investigation. However, the resistivity data with long electrodes can not be processed with a conventional inversion algorithm because a long electrode produces the different primary potential distribution compared with the point source. In this study, we proposed a new technique to process the electrical resistivity data with long electrodes by replacing the long electrode with a sequence of point electrodes. Comparing the potentials obtained from the technique with the analytic/numerical solution, we ensure that the proposed technique can be used for the numerical resistivity modeling based on the finite difference or finite element method.
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