Summary
Currently existing analytical models of the VAPEX process (Butler (1989), Das (1994)) can match Vapex experiments in Hele-Shaw cells but underpredict the experimental rate of recovery in physical models packed with sand. The predicted recovery rate in sand-packs is almost 10 times less than the experimental rate. To match the production rate in real porous media, much higher values of diffusion coefficient than the measured values reported in the literature are needed in these mathematical models. The main objective of this research was to develop a mathematical model of the VAPEX process which would be capable of accurately modeling the mass-transfer process occurring ahead of the vapor-liquid interface. The new mathematical model was developed using techniques similar to those employed earlier in mathematical modeling of the SAGD process (Butler (1985)). The other objective was to improve an existing mathematical model of the SAGD process (Pooladi-Darvish (1995)) and to investigate the effects of permeability and drainage height on the performance of SAGD. New dimensionless group numbers were introduced and their relationships were investigated.
Read More ↓Edition Statements
- Publication Date:2008
Thesis Information
- Degree:M.Sc.
- University:University of Calgary (Canada)
- Pages:112
Publication Statements
- Language:eng
- Publication Date:2008
Edition Identifiers
- proquest:276020107
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