Wang, M., Argüelles-Vivas, F.J., Abeykoon, G.A., and Okuno, R., The Effect of Initial Water Saturation on Enhanced Water Imbibition by Surfactant for Fractured Tight Porous Media, SPE Journal, Volume 26, Issue 2, pp. 847 - 859, April 14, 2021. https://doi.org/10.2118/200431-PA