Experimental Phase Densities and Interfacial Tensions for a CO2/Synthetic-Oil and a CO2/Reservoir-Oil System

Summary Experimental data are presented for equilibrium vapor and liquid densities and interfacial tensions (IFT's) for two multi-component mixtures. Data are presented at 120 and 150°F for a CO2/synthetic-oil (containing the n-paraffins, methane to tetradecane) and at 130°F for a CO2/recombined-reservoir-oil system. In both systems, measurements include the near-critical region, where IFT's become very low. These data should be useful in developing and testing models to predict phase behavior and IFT's for CO2 EOR operations.