Well/Wormhole Model of Cold Heavy-Oil Production With Sand
- Christopher M. Istchenko (University of Calgary) | Ian D. Gates (University of Calgary)
- Document ID
- Society of Petroleum Engineers
- SPE Journal
- Publication Date
- April 2014
- Document Type
- Journal Paper
- 260 - 269
- 2013. Society of Petroleum Engineers
- 5.4.11 Cold Heavy Oil Production (CHOPS), 2.4.3 Sand/Solids Control, 5.2 Reservoir Fluid Dynamics, 3.2.5 Produced Sand / Solids Management and Control
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- 665 since 2007
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Cold heavy-oil production with sand (CHOPS) is a nonthermalheavy-oil-recovery technique used primarily in the heavy-oil belt in easternAlberta, Canada, and western Saskatchewan, Canada. Under CHOPS, typicalrecovery factors are between 5 and 15%, with the average being less than 10%.This leaves approximately 90% of the oil in the ground after the processbecomes uneconomic, making CHOPS wells and fields prime candidates forenhanced-oil-recovery (EOR) follow-up process field optimization. CHOPS wellsshow an enhancement in production rates compared with conventional primaryproduction, which is explained by the formation of high-permeability channelsknown as wormholes. The formation of wormholes has been shown to exist inlaboratory experiments as well as field experiments conducted with fluoresceindyes. The major mechanisms for CHOPS production are foamy oil flow, sandfailure (or fluidization), and sand production. Foamy oil flow aids inmobilizing sand and reservoir fluids, leading to the formation of wormholes.Foamy oil behavior cannot be effectively modeled by conventionalpressure/volume/temperature (PVT) behavior. Here, a new well/wormhole model forCHOPS is proposed. The well/wormhole model uses a kinetic model to deal withfoamy oil behavior, and sand is mobilized because of sand failure determined bya minimum fluidization velocity. The individual wormholes are modeled in asimulator as an extension of a production well. The model grows thewell/wormhole dynamically within the reservoir according to a growth criterionset by the fluidization velocity of sand along the existing well/wormhole. Ifthe growth criterion is satisfied, the wormhole extends in the appropriatedirection; otherwise, production continues from the existing well/wormholeuntil the criterion is met. The proposed model incorporates sand production andreproduces the general production behavior of a typical CHOPS well.
|File Size||2 MB||Number of Pages||10|
Claridge, E. L. and Prats, M., A. 1995. A Proposed Model and Mechanism forAnomalous Foamy Oil Behavior. Paper SPE 29243 presented at the InternationalHeavy Oil Symposium, Calgary, Alberta, Canada, 19-21 June.
Dusseault, M. B. 2011. Comparing Venezuelan and Canadian Heavy Oil and TarSands. Paper SPE 2001-061 presented at the Canadian InternationalPetroleum Conference, Calgary, Alberta, Canada, 12-14 June. http://dx.doi.org/10.2118/2001-061.
Dusseault, M. B. and El-Sayed, S. 1999. CHOP - Cold Heavy Oil Production.Oral presentation given at the 10th European Symposium on ImprovedOil Recovery, Brighton, UK, 18-20 August.
Geilikman, M. B. and Dusseault, M. B. 1999. Sand Production Caused by FoamyOil Flow. Transport Porous Med. 35 (2): 259-272. http://dx.doi.org/10.1023/A:1006532804609.
Geilikman, M. B., Dusseault, M. B. and Dullien, F. A. 1995. Dynamic Effectsof Foamy Fluid Flow in Sand Production Instability. Paper SPE 30251 presentedat SPE International Heavy Oil Symposium, Calgary, Alberta, 19-21 June 1995. http://dx.doi.org/10.2118/30251-MS.
Geililkman, M. B., Dusseault, M. B. and Dullien, F. A. 1994. FluidProduction Enhancement by Exploiting Sand Production. Paper SPE 27797 presentedat SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, 17-20 April. http://dx.doi.org/10.2118/27797-MS.
Geilikman, M. B., Dusseault, M. B. and Dullien, F. A. 1994. Sand Productionas a Viscoplastic Granular Flow. Paper SPE 27343 presented at SPE FormationDamage Control Symposium, Lafayette, Louisiana, 7-10 February. http://dx.doi.org/10.2118/27343-MS.
Huang, W. S, Marcum, B. E, Chase, M. R., et al. 1998. Cold Production ofHeavy Oil From Horizontal Wells in the Frog Lake Field. SPE Res Eval &Eng 1 (6): 551-555. http://dx.doi.org/10.2118/52636-PA.
Lillico, D. A., Bachin, A. J., Jossy, W. E., et al. 2001. Gas BubbleNucleation Kinetics in a Live Heavy Oil. Colloid Surface A 192 (1-3): 25-38. http://dx.doi.org/10.1016/S0927-7757(01)00714-2.
Liu, X. and Zhao, G. 2005. A Fractal Wormhole Model for Cold Heavy OilProduction. J Cdn. Pet. Tech. 44 (9): 31-36. http://dx.doi.org/10.2118/05-09-03.
Loughead, D. J. and Saltuklaroglu, M. 1992. Lloydminster Heavy OilProduction: Why so Unusual? Oral presentation given at the Ninth Annual HeavyOil and Oil Sands Technology Symposium, Calgary, Alberta, Canada, 11 March.
Matlab User's Manual. 2012. Natick, Massachusetts: Mathworks, Inc.
Rivero, J. A., Coskuner, G., Asghari, K., et al. 2010. Modeling CHOPS Usinga Coupled Flow-Geomechanics Simulator With Nonequilibrium Foamy-Oil Reactions:A Multiwell History Matching Study. Paper SPE 135490 presented at the SPEAnnual Technical Conference and Exhibition, Florence, Italy, SPE 135490, 19-22September. http://dx.doi.org/10.2118/135490-MS.
Sawatzky, R. P, Lillico, D. A, London, M. J., et al. 2002. Tracking ColdProduction Footprints. Paper SPE 2002-086 presented at Canadian InternationalPetroleum Conference, Calgary, Alberta, Canada, 11-13 June. http://dx.doi.org/10.2118/2002-086.
Sheng, J. J., Maini, B. B., Hayes, R. E., et al. 1999. Critical Review ofFoamy Oil Flow. Transport Porous Med. 35 (2): 157-187. http://dx.doi.org/10.1023/A:1006575510872.
Smith, G. E. 1988. Fluid Flow and Sand Production in Heavy-Oil ReservoirsUnder Solution-Gas Drive. SPE Prod Eng 3 (2): 179-180. http://dx.doi.org/10.2118/15094-PA.
STARS Steam, Thermal, and Advanced Processes Reservoir Simulator User Guide.2011. Calgary, Alberta: CMG.
Squires, A. 1993. Inter-Well Tracer Results and Gel Blocking Program. Oralpresentation given at the 10th Annual Heavy Oil and Oil SandsTechnical Symposium, Calgary, Alberta, Canada, 9 March.
Tang, C. Q and Firoozabadi, A. 2003. Gas Liquid-Phase RelativePermeabilities for Cold Production from Heavy-Oil Reservoirs. SPE Res Eval& Eng 3 (2): 70-80. http://dx.doi.org/10.2118/83667-PA.
Tang, C. Q., Leung, T., Castanier, L. M., et al. 2003. AnInvestigation of the Effect of Oil Composition on Heavy-Oil Solution-Gas Drive.Paper SPE 84197 presented at SPE Annual Technical Conference and Exhibition,Denver, Colorado, 5-8 October. http://dx.doi.org/10.2118/84197-MS.
Tremblay, B. 2009. Cold Flow: A Multi-Well Cold Production (CHOPS) Model.J. Cdn. Pet. Tech. 48 (2): 22-28. http://dx.doi.org/10.2118/09-02-22.
Tremblay, B. 2005. Modeling of Sand Transport Through Wormholes. J. Cdn.Pet. Tech. 44 (4): 51-58. http://dx.doi.org/10.2118/05-04-06.
Tremblay, B. and Oldakowski, K. 2003. Modeling of Wormhole Growth in ColdProduction. Transport Porous Med. 53 (2): 197-214. http://dx.doi.org/10.1023/A:1024017622009.
Tremblay, B., Sedgwick, G., and Vu, D. 1998. CT Imaging of Wormhole Growthunder Solution-Gas Drive. Paper SPE 39638 presented at the SPE/DOE Improved OilRecovery Symposium, Tulsa, Oklahoma, 19-22 April. http://dx.doi.org/10.2118/39638-MS.
Tremblay, B., Sedgwick, G., and Forshner, K. 1997. Simulation of ColdProduction of Heavy Oil Reservoirs: Wormhole Dynamics. SPE Res Eng 12 (2): 110-117. http://dx.doi.org/10.2118/35387-PA.
Uddin, M. 2005. Numerical Studies of Gas Exsolution in a Live Heavy-OilReservoir. Paper SPE 97739 presented at the SPE/PS-CIM/CHOA InternationalThermal Operations and Heavy Oil Symposium, Calgary, Alberta, 1-3 November. http://dx.doi.org/10.2118/97739-MS.
Yeung, K. C. 1995. Cold Production of Crude Bitumen at the Burnt LakeProject, Northeastern Alberta, Canada. Oral presentation given at the6th UNITAR International Conference on Heavy Crude and Tar Sands,Houston, Texas, 12-17 February.