01324nab a2200205 4500 20260520001754.0 260224s2009 xxu Experimental determination of butane dispersion in vapor extraction of heavy oil and bitumen jul. 2009 14/06/2010 ; 11/06/2010 7 p. ; 41-47 Transcripción del resumen del autor. In this work, the dispersion of butane is experimentally determined during the vapor extraction (Vapex) of oil sands. The experiments are carried at room temperature using solvent butane at the dew point pressure. Athabasca bitumen packed with glass beads of different permeabilities is used as a porous medium in a cylindrical geometry. A detailed mathematical model is developed for solvent transfer into the medium and subsequent oil production. The concentration-dependent dispersion coefficient of butane is optimally determined by matching the experimental live oil production with the model-predicted one. Results are obtained for three different permeabilities of the medium. 1-2 Journal of Petroleum Science & Engineering 67 ARTICULO El-Haj, R. 42545 Lohi, A. 42546 Upreti, S.R. 42547 170925 170925 0 0 0 0 238744 BAAB BAAB 2026-03-05 200045781 0 200045781 2026-03-05 15:13:18 2026-03-05 ARTICULO