Advanced Solvent-Additive Processes by Genetic Optimization
- Neil Edmunds (Laricina Energy Ltd.) | Behdad Moini (Laricina Energy Ltd.) | Jeff Peterson (Laricina Energy Ltd.)
- Document ID
- Society of Petroleum Engineers
- Journal of Canadian Petroleum Technology
- Publication Date
- September 2010
- Document Type
- Journal Paper
- 34 - 41
- 2010. Society of Petroleum Engineers
- 5.3.9 Steam Assisted Gravity Drainage, 5.7.2 Recovery Factors, 6.5.1 Air Emissions
- solvent additive, thermal recovery, optimization, SAGD, genetic algorithm
- 0 in the last 30 days
- 619 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 12.00|
|SPE Non-Member Price:||USD 35.00|
This paper describes the application of a genetic algorithm to the development of a solvent-additive SAGD process. A review of related field projects and key simulation studies is provided, together with a discussion of the pros and cons of potential alkane solvents. Economics and the impact of dynamic and ultimate retention are discussed.
A general conclusion drawn from literature is that optimal solvent application to SAGD will likely involve time variations in both rate and composition of the solvent. This results in an optimization problem that has a large number of dimensions, and is nonlinear. We have found genetic algorithms, which mimic biological evolution, have been found to be extremely effective in addressing such problems. The general methodology of application to solvent additives by Laricina Energy Ltd. is described.
A key product of this effort, optimized for a simple clastic reservoir, is presented. The genetic algorithm produced an operable process, which could be described as a new combination of preexisting concepts. The process offers material improvements in thermal bitumen supply costs, as well as recovery factor. Major reductions in the physical steam/oil ratio (SOR), (and therefore) capital intensity and carbon emissions, are indicated.
|File Size||1 MB||Number of Pages||8|
1. Gupta, S.C. and Gittins, S.D. 2006. Christina Lake Solvent Aided ProcessPilot. J Can Pet Technol 45 (9). JCPT Paper No.06-09-TN. doi: 10.2118/06-09-TN.
2. Nenniger, J. 2008. Method and Apparatus for Stimulating Heavy OilProduction. Canadian (CIPO) Patent No. 2299790; US Patent No. 7727766.
3. Butler, R.M. and Mokrys, I.J. 1991. A New Process (VAPEX) for RecoveringHeavy Oils Using Hot Water and Hydrocarbon Vapour. J Can Pet Technol 30 (1): 97-106. JCPT Paper No. 91-01-09. doi:10.2118/91-01-09.
4. Gupta, S., Gittins, S., and Picherack,P. 2004. Insights into Some Key Issues withSolvent Aided Process. J Can Pet Technol 43 (2):97-105. JCPT Paper No. 04-02-05. doi: 10.2118/04-02-05.
5. Gupta, S., Gittins, S., and Picherack, P. 2002. Field Implementation of Solvent AidedProcess "Waxy" Mixtures. Paper CIPC 2002-299 presented at the PetroleumSociety's Canadian International Petroleum Conference (CIPC), Calgary, 11-13June. doi: 10.2118/2002-299.
6. Leaute, R.P. and Carey, B.S. 2007. Liquid Addition to Steam forEnhancing Recovery (LASER) of Bitumen with CSS: Results from the First PilotCycle. J Can Pet Technol 46 (9): 22-30. JCPT Paper No.07-09-01. doi: 10.2118/07-09-01.
7. Imperial Oil Resources. 2008. Cold Lake Annual Performance Review.Performance presentation, CSS 8558 and 4510, ECRB, Calgary, Alberta.
8. Zhao, L. 2004. SteamAlternating Solvent Process. Paper SPE 86957 presented at the SPE Symposiumon International Thermal Operations and Heavy Oil and Western Regional Meeting,Bakersfield, California, USA, 16-18 March. doi: 10.2118/86957-MS.
9. Gupta, S.C. and Gittins, S.D. 2007. Effect of Solvent Sequencing andOther Enhancements on Solvent Aided Process. J Can Pet Technol 45 (9). JCPT Paper No. 07-09-06. doi: 10.2118/07-09-06.
10. Gates, I.D. and Gutek, A.M.H. 2008. Process for In Situ Recovery ofBitumen and Heavy Oil. US Patent No. 7,464,756.
11. Gates, I.D. and Chakrabarty, N. 2006. Optimization of Steam AssistedGravity Drainage in McMurray Reservoir. J Can Pet Technol 45(9): 54-62. JCPT Paper No. 06-09-05. doi: 10.2118/06-09-05.
12. Mitchell, M. 1998. An Introduction to Genetic Algorithms.Cambridge, Massachusetts: MIT Press.