Published: Ιαν 1, 2007
ERT single-borehole ERT water injection Sindos
P. Tsourlos
G. Vargemezis
C. Voudouris
T. Spachos
A. Stampolidis

This work describes the installation and preliminary measurements of an electrical resistivity tomography (ERT) system to monitor the injection of recycled water into a confined aquifer in the area of Sindos. The aim is to provide, through time-lapse electrical resistivity tomography (ERT) measurements and processing, geoelectrical images of rather increased volumetric sampling around and between the holes and to obtain improved understanding of the flow and transport of the injected water. The details about the general setting and the design of the injection utility are presented and the construction and installation of the ERT cables into the boreholes are explained in full. Preliminary measurements involving single-hole ERT measurements were obtained and processed with a 2D inversion algorithm to produce images of the subsurface. Results depict a very good correlation between ERT images and the lithology logs an indication of the reliability of the approach. This images offer increased resolution and spatial coverage compared to traditional approaches. The entire ERT permanent installation is of low cost, easy to implement and can be used to understand and evaluate the effects of the water injection process.

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  • Hydrology and Hydrogeology
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Asch, T.H., and Morrison, H.F., 1989. Mapping and monitoring electrical resistivity with surface and subsurface electrode arrays, Geophysics, 54, 235-244.
Beve, D., and Morrison, H.F., 1991. Borehole-to-surface electrical resistivity monitoring of a salt water injection experiment, Geophysics, 56, 769-777.
Berryman, J.G., and Kohn, R.V., 1990. Variational constraints for electrical impedance tomography, Phys. Rev. Lett, 65, 325-328.
Daily, W., Ramirez, Α., LaBrecque, D., and Nitao, J., 1992. Electrical resistivity tomography of vadose water movement, Water Resour. Res., 2%, 1429-1442.
Daily, W., Ramirez, Α., LaBrecque, D., and Barber, W., 1995. Electrical resistance tomography experiments at the Oregon Graduate Institute, Journal of Applied Geophysics, 33, 227-237.
Daily, W., and Ramirez, L., 2000. Electrical imaging of engineered hydraulic barriers, Geophysics, 65, 83-94.
Dahlin, T., 1996. 2D resistivity surveying for environmental and engineeringapplications, First break, 14(7), 275-283.
Ebraheem, A.M., Hamburger, M.W., Bayless, E.R., and Krothke, N.C., 1990. A study of acid mine drainage using earth resistivity measurements, Ground Water, 28, 361-368.
EEA, 1996. Requirements for Water Monitoring. Topic Report No 1/1996.
EEA, 1997. European Freshwater Monitoring Network Design. Topic report No 10/1997.
Friedel, S., Hansruedi Maurer, H., Herfort, M., and Van Meir, Ν., 2004. Application of singlehole geoelectrical tomography to characterize a coastal aquifer (2004), SEG Technical Program Expanded Abstracts- 2004, 620-623.
Goes, B.J.M., and Meekes, J.A.C., 2004. An effective electrode configuration for the detection of DNAPLs with electrical resistivity tomography, Journal of Environmental and Engineering Geophysics, 9,127-141.
Kim, J.-H. 2005. 4-D least-squares inversion of geophysical monitoring data: application to dc resistivity monitoring, Proceedings of the 112th SEGJ Conference Waseda University, Tokyo, Japan May 9-11, 2005, 211-214.
LaBrecque, D.J., 1989. Cross-borehole resistivity modeling and model fitting, Ph.D thesis, Univ. Utah, Salt Lake City, UT.
LaBrecque, D.J., and Yang, X., 2001. Difference inversion of ERT data: a fast inversion method for 3-D in situ monitoring, Journal of Environmental and Engineering Geophysics, 5, 83-90.
Loke, M.H., 1999. Time lapse resistivity imaging inversion, Proceedings of the 5' Meeting of the Environmental end Engineering European, Emi, Budapest, Hungary.
Marescot, L., Palma Lopes, S., Lagabrielle, R., and Chapellier, D., 2002. Designing surface-toborehole electrical resistivity tomography surveys using the Frechet derivative, Proceedings of the 8' Meeting of the Environmental and Engineering Geophysical Society - European Section, 289-292.
Nimmer, R.E., and Osiensky, J.L., 2002. Using Mise-à -la-masse to delineate the migration of a conductive tracer in partially saturated basalt, Environmental Geosciences, 9(2), 81-87.
Morelli, G., and LaBrecque, D., 1996. Advances in ERT inverse modeling: European, Journal of Environmental and Engineering Geophysics, 1,171-186.
Park, S, 1998. Fluid migration in the vadose zone from 3-D inversion of resistivity monitoring data, Geophysics, 63(1), 41-51.
Ramirez, Α., Daily, W., LaBrecque, D., Owen, E., and Chesnut, D., 1993. Monitoring an underground steam injection process using electrical resistance tomography, Water Resour. Res., 29, 73-87.
Slater, L., Binley, A.M., Daily, W., and Johnson, R., 2000. Cross-hole electrical imaging of a controlled saline tracer injection, Journal of Applied Geophysics, 44, 85-102.
Tsourlos, P., Ogilvy, R.D., Meldrum, P.I., and Williams, G.M., 2003. Time-lapse monitoring in single boreholes using electrical resistivity tomography, Journal of Environmental and Engineering Geophysics, 8, 1-14.
Tsourlos, P., Ogilvy, R.D., and Papazachos, C, 2004. Borehole-to-surface ERT inversion. In Proceedings 1 European Meeting of Environmental and Engineering Geophysics, 6-9th September 2004, Utrecht, The Netherlands.
Tsourlos, P., Ogilvy, R.D., and Meldrum, P., 2005a. Time-lapse Monitoring using Borehole-to-Surface Electrical Resistivity Tomography, Proceedings 11th European Meeting of Environmental and Engineering Geophysics, 6-9th September 2005, Palermo, Italy.
Tsourlos, P., Ogilvy, R.D., Papazachos, C, and Meldrum, P., 2005b. Measurement and Inversion schemes for Single Borehole-to-Surface Electrical Resistivity Tomography Surveys, Near Surface Geophysics, (in press)
Yi, M.-J., Kim, J.-FL, and Chung, S.-FL, 2003. Enhancing the resolving power of least-squares inversion with active constraint balancing, Geophysics, 68, 931-941.
Zhou, B., and Greenhalgh, S.A., 2000. Cross-hole resistivity tomography using different electrode configurations, Geophysical Prospecting, 48, 887-912.
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