A new approach in correlating the oil thermodynamic properties

A new compositional model is proposed to improve the prediction of phase behavior and physical properties of oil reservoir effluents. This work is based on a very classical and easy-to-handle cubic equation of state (EoS) coupled with a performing group contribution method devoted to the estimation of binary interaction parameters. The proposed model is compared to other published methods on the basis of laboratory data on real fluids, including pressure/volume/temperature (PVT) measurements and slim tube experiments. The method developed in this work shows enhanced results on a large range of pressure and temperature.