“…As a result, it is possible to know if the system remains miscible with the gas, which is required for a more efficient residual oil displacement and recovery process. Moreover, CO 2 injection has a significant effect on asphaltene precipitation, and the proper thermodynamic modeling can aid in accurate predictions of the asphaltene onset precipitation curve (AOP). , For models that describe the asphaltene precipitation through regular solution theory, as cubic and noncubic equations of state, parameter estimation requires experimental data of the saturation pressure and AOP to calculate the AOP for a wide range of gas–oil mixture compositions. Therefore, if the model does not provide a good description of the saturation pressure, then the AOP calculation is also impaired. , …”