Depth to Surface Resistivity (DSR) has been shown to be effective at mapping CO2, water flood, and residual oil aerially and vertically. Provided there is sufficient resistivity contrast between injected and in-situ fluids and subject to the reservoir depth and overburden resistivity, the technique is applicable for monitoring IOR/EOR fields. This information can be used to evaluate cap rock integrity, fluid loss to faults, and migration paths. The following paper presents a study of a CO2 flood followed by water alternating gas (WAG) injection.
Number of Pages
Börner, J H, Herdegen, V, Repke J U, and Spitzer, K., 2013. The electrical conductivity of CO2-bearing pore waters at elevated pressure and temperature: a laboratory study and its implications in CO2 storage monitoring and leakage detection. Geophys. J. Int. (November, 2015) 203 (2): 1072–1084
Hibbs, A.D., Petrov, T., Pendleton, J., Milberger, S., Eiskamp, G., and Wilson, G.A., 2012. New electromagnetic sensors for magnetotelluric and induced polarization geophysical surveys. SEG Technical Program Expanded Abstracts 2012: pp. 1–5.
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