Complex Thermodynamic Behaviour to Assess the Performance of Solvent Injection into Heavy Oil

B13 Complex Thermodynamic Behaviour to Assess the Performance of Solvent Injection into Heavy Oil N. Guillonneau* (TOTAL) & G. Darche (TOTAL) SUMMARY Injection of gaseous solvent in heavy oil reservoirs might be an alternative recovery technique as compared to thermal processes. Several uncertainties remain on the physical behaviour of the solvent-oil interaction: amount of diffusion/dispersion gravity and capillary effects nature of the thermodynamic equilibriums. This paper will address some of these uncertainties through the history match of a coreflood experiment in order to tune some of the physical parameters. This experiment was performed by injecting a C2 – C3 gas