Browse > Article
http://dx.doi.org/10.7582/GGE.2016.19.1.045

Resistivity Survey Using Long Electrodes  

Cho, In-Ky (Division of Geology and Geophysics, Kangwon National University)
Lee, Keun-Soo (Division of Geology and Geophysics, Kangwon National University)
Kim, Yeon-Jung (Division of Geology and Geophysics, Kangwon National University)
Kim, Rae-Young (Division of Geology and Geophysics, Kangwon National University)
Publication Information
Geophysics and Geophysical Exploration / v.19, no.1, 2016 , pp. 45-50 More about this Journal
Abstract
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.
Keywords
electrical resistivity; long electrode; point source; resistivity modeling;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Beasley, C. W., and Ward, S. H., 1986, Three-dimensional misea- la-masse modeling applied to mapping fracture zones, Geophysics, 51, 98-113.   DOI
2 Cho, I. K., 1988, Three-dimensional modeling and interpretation of cross-hole resistivity and magnetometric resistivity method, Ph. D thesis, Seoul National University.
3 Dey, A., and Morrison, H. F., 1979, Resistivity modeling for arbitrarily shaped three-dimensional structures, Geophysics, 44, 753-780.   DOI
4 Johnston, R. H., Trofimenkoff, F. N., and Hasslett, J. W., 1987, Resistivity response of a homogeneous earth with a finitelength contained vertical conductor, IEEE Transactions on Geoscience and Remote Sensing, GE-25, 414-421.   DOI
5 Keller, G. V., and Frischnecht, F. C., 1966, Electrical Methods in Geophysical Prospecting, International Series of Monographs in Electromagnetic Waves, vol. 10. Pergamon Press, New York, 525.
6 Rucker, D. F., Fink, J. B., and Loke, M. H., 2011, Environmental monitoring of leaks using time-lapsed long electrode electrical resistivity, Journal of Applied Geophysics, 74, 242-254.   DOI
7 Rucker, D. F., Loke, M. H., Noonan, G. E., and Levitt, M. T., 2010, Electrical resistivity characterization of an industrial site using long electrodes, Geophysics, 75(4), WA95-WA104.