Liu. Y., Grigg, R.B., and Svec, R.K..: "Foam Mobility and Adsorption in Carbonate Core," Paper SPE 99756 presented at the 2006 SPE/DOE Symposium on Improved Oil Recovery, Tulsa, 22-26 April.
Bai, B., grigg, R.B. Liu, Y., and Zeng, Z-W.: "Adsorption and Desorption of a CO2-Foam-Forming Surfactant onto Berea Sandstone," paper SPE 95920 presented at the 2005 SPE Annual Technical Conference and Exhibition, Dallas, 9-12 October.
Tsau, J.S., Syahputra, A.E., Yaghoobi, H., and Grigg, R.B.: “Use of Sacrificial Agents in CO2 Foam Flooding Application,” paper SPE 56609 to be presented at the 1999 SPE Annual Technical Conference and Exhibition, Houston, October 3-6.