The role of condensing and non-condensing solvents in SA-SAGD
June 2018
Mira Kim

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Abstract

Recent development of high-temperature high-pressure glass micromodels has allowed physical modeling of the SAGD and solvent-SAGD processes at conditions similar to the Canadian Oil Sands. This presents an opportunity to study the performance of various solvents on bitumen production under relevant in-situ reservoir condition. The results of this paper showed that C6-SAGD run showed the highest enhancement in oil recovery due to its thermophysical properties being similar to steam; C4-SAGD run showed a high improvement in the oil recovery rate due to the foam layer reducing the viscous fingering phenomena, and the condensation of these bubbles aiding the fast flow of this zone; C3-SAGD run showed a foam layer in the mobile zone which reduced the viscous fingering phenomena; and a fluorescence analysis of C6-SAGD run showed a varying level in fluorescence intensity due to separation of aromatic components of bitumen.

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  • Eye Icon 105 views
  • Download Icon 36 downloads
Metrics Icon 105 views  //  36 downloads