The assumption of volume change on mixing is evaluated from the experimental results, and the influence of pressure and temperature on the volume change upon mixing is assessed. The experiments were carried out under pressure and temperature gradients found in Brazilian Pre-salt reservoirs, that is, in the pressure range from (27.6 to 68.9) MPa and at (333.15 and 353.15) K. * Corresponding author: this study, highly accurate measurements of density and dynamic viscosities of a recombined live oil and its mixture with additional CO 2 were performed. Institute of Chemistry, Rio de Janeiro State University, RJ 20550-900, Brazil Laboratory of Enhanced Oil Recovery, Federal University of Rio de Janeiro, RJ 21941-594, BrazilĬivil Engineering Program, COPPE, Federal University of Rio de Janeiro, RJ 21945-970, Brazil School of Chemistry, Federal University of Rio de Janeiro, RJ 21945-970, Brazil Costa 2, Ana Mehl 1, Paulo Couto 2 ,3 and Márcio L.
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