Figure 10

Correlation between the IFT of oils in 0.164 M NaCl brine and the additional oil recovery in a spontaneous imbibition test in 0.164 M NaCl brine. The 0.164 M NaCl brine is pre-equilibrated with calcite and the tested oil (1:1 vol/vol) for all cases. Each point represents the result of one specific oil.