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Title: | Capability of cross-hole electrical configurations for monitoring rapid plume migration experiments |
Author: | Bellmunt Traver, Fabián Marcuello Pascual, Alejandro Ledo Fernández, Juanjo Queralt i Capdevila, Pilar |
Keywords: | Geofísica Tomografia Geophysics Tomography |
Issue Date: | Jan-2016 |
Publisher: | Elsevier B.V. |
Abstract: | Cross-hole electrical resistivity tomography is a useful tool in geotechnical, hydrogeological or fluid/gas plume migration studies. It allows better characterization of deep subsurface structures and monitoring of the involved processes. However, due to the large amount of possible four-electrode combinations between boreholes, the choice of the most efficient ones for rapid plume migration experiments (real-time monitoring), becomes a challenge. In this work, a numerical simulation to assess the capabilities and constraints of the most common cross-hole configurations for real-time monitoring is presented. Four-electrode configurations, sensitivity, dependence on the body location and amount of data were taken into account. The analysis of anomaly detection and the symmetry of the sensitivity pattern of cross-hole configurations allowed significant reduction of the amount of data and maintaining the maximum potential resolution of each configuration for real-time monitoring. The obtained results also highlighted the benefit of using the cross-hole AB-MN configuration (with both current - or potential - electrodes located in the same borehole) combined with other configurations with complementary sensitivity pattern. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1016/j.jappgeo.2015.11.010 |
It is part of: | Journal of Applied Geophysics, 2016, vol. 124, p. 73-82 |
URI: | http://hdl.handle.net/2445/128768 |
Related resource: | https://doi.org/10.1016/j.jappgeo.2015.11.010 |
ISSN: | 0926-9851 |
Appears in Collections: | Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) |
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653969.pdf | 1.81 MB | Adobe PDF | View/Open |
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