In and , we presented the results of seismic-style processing that exploits the moveout of synthetic 1-D ISEM data. We found that the Radon transform is useful for detecting the presence of hydrocarbons in the subsurface, and that a modification of the Radon transform (the “EM-Radon” transform) actually makes useful images of the subsurface values of electrical resistivity (the physical parameter which controls the velocity of EM waves in the subsurface). Here we present an update concerning the robustness of the EM-Radon transform to the thickness and depth of the reservoir.


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