Research on miscible displacement of West Sak oil is described. The following tasks were performed: Task 1, laboratory measurement of phase behavior and physical properties of West Sak oil/endash/solvent mixtures. Task 2, measurement of minimum miscbility pressure for enriched gas solvents/endash/West Sak crude mixtures. Task 3, prediction of phase behavior and miscibility conditions for West Sak crude/endash/solvent mixtures. Task 4, displacement experiments on steam/endash/solvent process for West Sak oil. Task 5, displacement studies on steam/endash/solvent injection for heavy oil recovery and application to West Sak reservoir: development of a heat transfer model. 14 figs., 5 tabs.
