Figure 3

Systematic changes to oil recovery distributions along the mixing line of TW1 and TW2 (during spontaneous imbibition tests) showing a uniform increase in oil recovery across the sample at increasing [SO4] (in units of ppm).

Systematic changes to oil recovery distributions along the mixing line of TW1 and TW2 (during spontaneous imbibition tests) showing a uniform increase in oil recovery across the sample at increasing [SO4] (in units of ppm).