Prediction of asphaltene phase behavior in live oil with CPA equation of state

► In this work, CPA EOS was used for modeling of asphaltene precipitation. ► The model results were compared to other models and experimental data of three oil samples. ► The model results are in good agreement with experimental data. ► The effect of CO2 injection was investigated for oil samples. ► Results show that increasing CO2 content will increase asphaltene deposition.