An evaluation found that when tuned, the Soave-Redlich-Kwong (SRK) and Peng-Robinson (PR) equations of state (EOS) can predict heavy oil densities and SARA fractions ...
A new cubic equation of state (EOS) predicts densities of Western Canadian heavy oils and their SARA (saturates, aromatics, resins, and asphaltenes) fractions. The method considers the SARA fraction ...