Abstract
Due to the significant impacts of CO2-oil miscibility, reservoir heterogeneity, and injection pattern on oil production, a fascinating experimental investigation is provided. The outcomes express that CO2 consumption in homogeneous cores are lower than heterogeneous cores. A small amount of permeability heterogeneity as one of the indications of heterogeneity, can highly effect on the performance of miscible and immiscible injections. On the miscibility viewpoint, multi-contact miscible injections have better performance than immiscible injections in range of 7.2% − 16.4%. Also, the injection patterns comparisons express that best choice for pattern injection is water alternating gas injection.
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