Feasibility assessment of heavy-oil recovery by CO2 injection after cold production with sands: Lab-to-field scale modeling considering non-equilibrium foamy oil behavior

Next, the CO2 depletion experiments were numerically simulated and the parameters of reaction kinetics used to model the liberation of dissolved CO2 gas to trapped CO2 bubbles and then to free CO2 gas non-equilibrium foamy oil depletion) were determined. The grid sensitivity of the reaction kinetics was investigated and a power-law core-to-field scaling rule was developed and numerically validated. The scaling rule was then used to upscale the reaction parameters for a previously history matched CHOPS field with 15 wells in Alberta (Rangriz Shokri and Babadagli, 2012, 2014). Lastly, the economic feasibility assessment of cyclic CO2 stimulation as a follow-up field-scale post-CHOPS option was determined under different oil price scenarios to optimize the operating conditions and the selection of the best possible field development strategies.