Fig. 12

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Comparison of the residual oil saturation S orw computed from the ester and alcohol arrival times, according to equation (33), when using first- and second-order schemes and performing a grid refinement (see also Tab. 6). Arrival times t t − t0, t e − t0 and t a − t 0 are computed from the tracer, ester and alcohol outlet concentration profiles maximum peak amplitudes.