Most of the world’s reservoirs are currently in the advanced primary or secondary recovery stage. Even though sinks wells used by oil companies are located much deeper than aquifers, they may eventually cause environmental damages contaminating the water with brine leakage, oil spill or other polluting agent. This is why it is extremely important to do vulnerability studies.

Since contaminants have different electrical conductivity than water, geoelectrical methods can be useful to detect and even monitor flow evolution of the contamination plume.

We want to analyze if it is possible to detect contaminations of an aquifer that lies above an oil reservoir, approximately at 300 m depth, with current injections on surface and voltages sensors in a well. In order to achieve this we have designed an electrical model of the reservoir including the contaminated aquifer with, either a conductive contamination such as saline brine or a resistive contamination such as oil spill, and numerically simulated the forward geoelectrical responses.


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  1. Abaqus 6.9 Unified Finite Element System
    Abaqus 6.9 Unified Finite Element System, [2009] DassaultSystemesSimulia Corp., Rising Sun Mills, 166 Valley Street, Providence, RI, USA. www.simulia.com.
    [Google Scholar]
  2. Archie, G.E.
    [1942] The electrical resistivity log as an aid in determining some reservoir characteristics. Petrol. Trans. ATME, 146, 54–62.
    [Google Scholar]
  3. Bongiovanni, M.V., Osella, A., De la Vega, M. and Tichno, A.
    [2013] Detection of brine plumes in an oil reservoir using the geoelectric method. Journal of Geophysics and Engineering, 10, 045006.
    [Google Scholar]
  4. Bongiovanni, MV., Grünhut, V., Osella, A. and Tichno, A.
    [2015] Numerical simulation of surface-downhole geoelectrical measurements in order to detect brine plumes. Journal of Applied Geophysics, 116, 215–223.
    [Google Scholar]
  5. Schmidt-Hattenberger, C., Bergmann, P., Kiesling, D., Krüger, K., Rücker, C., Scütt, H.
    and Ketzin Group [2011] Application of a vertical electrical resistivity array (VERA) for monitoring CO2 migration at the Ketzin site: first performance evaluation. Energy Procedía, 4, 3363–3370.
    [Google Scholar]

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