A13 Gravity Segregation in Non-Newtonian Foam IOR C. Shen* (The University of Texas at Austin) W.R. Rossen (Delft University of Technology) & Q.P. Nguyen (The University of Texas at Austin) SUMMARY A useful model for gravity override in gas IOR is Stone’s model (SPE 11140; SPE 12632) which describes gravity override during simultaneous water-gas flow into a homogeneous reservoir. Shi and Rossen (SPEREE April 1998) and Cheng et al. (SPE 59287 2000) extended the model to foam processes with Newtonian rheology and Rossen and van Duijn (J. Petr. Sci. Eng. 43 99-111 2004) showed that the model is rigorously correct


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