E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 49/00 (2006.01) E21B 43/24 (2006.01) E21B 43/241 (2006.01)
Patent
CA 2660227
Solvent-based processes for recovery of heavy oil and bitumen have potential application to a variety of reservoir situations. Potential processes range from SAGD to VAPEX, with a range of hybrid processes in between. Over 50 lab-scale and 80 field scale simulations were run to determine optimum operating points for various hybrid processes. The results showed that steam-butane simulations yielded two "sweet spots" where the cost objective function was lower than that for SAGD. Economic analysis was done based on a set of field scale simulations. This analysis showed that a hybrid solvent process for an Athabasca reservoir was an alternative to SAGD. The analysis may be extended to other reservoir types as needed.
Alberta Research Council Inc.
Emery Jamieson Llp
LandOfFree
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