Multicomponent transport studies of crude oils and asphaltenes in DSC program

Van S. Vaerenbergh (1) , J.C. Legros (1) , Jean-Luc Daridon (2) , T. Karapantsios (3) , M. Kostoglou (3) , Z.M. Saghir (4)

1 Microgravity Research Center
2 TEFC - Thermodynamique et Energétique des fluides complexes
3 School of Chemistry [Thessaloniki]
4 Department of mechanical and industrial engineering (Toronto, CANADA)

Crude oils have matured during ages in reservoirs under obvious non-equilibrium conditions. The resulting stratification and phases present can be predicted only with non-equilibrium thermodynamics tools. Possibly, convection is present and enforced by the Soret effect. These parameters are the focus of the MAP DSC (Diffusion and Soret Coefficients) multicomponent studies. Theoretical and ground based studies are completed by measurements performed in the SCCO experiments (Soret Coefficients of Crude Oils), of the DSC experiment on SODI facility (Beginning 2008). The problem is presented here in a simplified manner using Maxwell-Stéfan formalism, and is applied to some situations occurring in reservoirs and in the GATE experiment proposed for the study of growth conditions of asphaltenes.

Domains: Chemical Physics [physics.chem-ph]

Van S. Vaerenbergh, J.C. Legros, Jean-Luc Daridon, T. Karapantsios, M. Kostoglou, et al.. Multicomponent transport studies of crude oils and asphaltenes in DSC program. Microgravity Science and Technology, 2006, 18 (3-4), pp.150-154. ⟨hal-00339081⟩