Spreading Corrosion-Model of Self-Potential Methods, Case Study of Buried Metal Laboratory Scale
DOI:
https://doi.org/10.24203/ajas.v6i6.5567Keywords:
Self-potential, anomalies, corrosion processes, laboratory experimentsAbstract
Self-potential is a geophysical method as an inexpensive, practical, and simply used measurements. Measuring with this as simply used, make it’s become sensitive to noise and causing difficulties with interpretation. As an environment geophysical method, self-potential would give a good interpretational model. One other way to getting a good model to reduced the noise data. The noise reduction developed by making the experiment box model as the only exploration field. Experiment box model is formed by composing paving blocks at the edge of the box. The purpose of the experiment is to analyze the target, which is a massive iron cylinder, as a physical and chemical reaction. The iron placed in the sandbox which has two conditions, half-down wet and half-up dry. The porous pot made from mini straw which is appropriated with the sandbox dimension and target experiment. The experiment took five weeks as periodically measurement.
The results were potential graphics and two-dimension iso-potential maps. Existing of iron-related to large-amplitude potential anomalies around the target. Thus, corrosion-related to compared periodical-maps of anomaly contour area. The difference of anomaly’s pattern in the last two maps might cause the internal changed of the box model. This experiment indicated that self-potential signals can be used to monitor corrosion processes.
References
Campbell, D. L. 1977. Model for Estimating Electric Macro Anisotropy Coefficient of Aquifers with Horizontal and Vertical Fractures. Geophysics Journal, Vol. 42, Issue 1, pp.114-117. https://doi.org/10.1190/1.1440705
Castermant, J., Mendonca, C.A., Revil, A., Trolard, F., and Bourrie, G., 2008, Redox potential distribution inferred from self-potential measurements associated with the corrosion of a burden metallic body, European Association of Geoscientists & Engineers, Prancis
Ekine, A.S., and Emujakporue, G. O. 2010, Investigation of Corrosion of Buried Oil Pipeline by the Electrical Geophysical Methods, Journal of Application Science and Enviroment, Nigeria vol. 14 (1), pp. 63-65
Ernstson, K. and Scherer, H. U., 1986, Self-potential variations with time and their relation to hydrogeologic and meteorological parameters, Society of Exploration Geophysicist, Jerman, 51(10), 1967-1977. https://doi.org/10.1190/1.1442052
Jee, K. H., Cheong, H. M., Kyung, J. W., Won, J. S., Park, J., and Lee, C. O., 2007, A Construction Case of Corrosion Monitoring of Marine Concrete Structures for Chloride Attack, International Construction Database, Korea Selatan
Lobo-Guerrero, A., 2004, Application of spontaneous potential profiles for exploration of Goldrich epithermal low sulphidation veins in a humid region, Geological Society of South Africa, Johannesburg
Lower, S. K., 2004, Electrochemistry: Chemical reactions at an electrode, galvanic and electrolytic cells, Kanada
Nyquist J. E., Corry, C. E., 2002, Self-potential: The ugly duckling of environmental geophysics, Society of Exploration Geophysicist, US
Oldham, W. H., 1959, Geophysical Survey of Nymagee Copper Field, Departement of National Development Bureau of Mineral Resource, Geology, and Geophysics, Selandia Baru
Revil, A. and Jarandi, A., 2013, The Self-Potential Method: Theory and Application in Environmental Geosciences, Cambridge University Press, Cambridge
Rittgers, J. B., Revil, A., Karaoulis, M., Mooney, M. A., Slater, L. D., and Atekwana, E. A., 2013, Self-potential signals generated by the corrosion of buried metallic objects with application to contaminant plumes, Society of Exploration Geophysicist, Colorado
Roth, M. J. S., Mackey, J. R., Mackey, C., and Nyquist, J. E. 2002. A Case Study of the Reliability of Multielectrode Earth Resistivity Testing for Geotechnical Investigations in Karst Terrains. Engineering Geology, Vol. 65 Issues 2-3, pp. 225-232. https://doi.org/10.1016/S0013-7952(01)00132-6
Sato, M., and Mooney, H. M., 1960, The Electrochemical and Mechanism of Sulfide Self-potentials, Society of Exploration Geophysicist, Cambridge.
Ward, S. H., and Sill, W. R., 1978, Resistivity, Induced Polarization, and Self-Potential Methods in Geothermal Exploration, Earth Science Laboratory and Departement of Geology and Geophysics University of Utah, Utah.
Downloads
Published
Issue
Section
License
Copyright © The Author(s). This article is published under the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
