This is the final report of a six-year research project devoted to the study of processes of oil displacement using dense carbon dioxide. The topics studied have included phase behavior and physical properties of mixtures of crude oil with CO2, the phenomena involved in the displacement of oil through reservoir rock under oilfield conditions, the influence of stabilized lamella or C-foam on this displacement and the development of computer programs to simulate the displacement. In addition, the occurrence of no uniformities in the displacement pattern has also been considered. The effect on displacement of permeability heterogeneities in the reservoir have been studied geostatistically and by direct numerical modeling. Displacement no uniformities that are induced by viscosity and density differences between displaced and displacing fluids have also been considered, and efforts are described for the development of two different types of additive for purposes of mobility control of CO2 floods. One of these is the so-called CO2-foam, formed by simultaneous flow through the formation of dense CO2 with a water solution of a special surfactant. The second type under development in the project is known as direct thickener, and consists of a polymer that is soluble in dense C~ and able to viscosity it. Significant progress is reported on all of the topics mentioned above.