Sand on Demand: A Laboratory Investigation on Improving Productivity in Horizontal Wells Under Heavy-Oil Primary Production--Part II
- Brigida Inmaculada Meza-Díaz (Alberta Innovates - Technology Futures) | Ron Sawatzky (Alberta Innovates - Technology Futures) | Ergun Kuru (University of Alberta)
- Document ID
- Society of Petroleum Engineers
- SPE Journal
- Publication Date
- December 2012
- Document Type
- Journal Paper
- 1,012 - 1,028
- 2012. Society of Petroleum Engineers
- 5.4.11 Cold Heavy Oil Production (CHOPS), 3.2.5 Produced Sand / Solids Management and Control, 2.4.3 Sand/Solids Control, 1.2.3 Rock properties
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The cold-production-recovery process, also known as cold heavy-oil production with sand (CHOPS), is a method for enhancing primary heavy-oil production by aggressively producing sand. It is successful in vertical (or slanted or deviated) wells in western Canada. In this process, large amounts of sand are produced on a continuing basis along with heavy oil. Attempts at cold production in horizontal wells have not been particularly successful. When sand production has been generated in horizontal wells, these wells have tended to become plugged with sand.
This paper presents the results of experiments performed to assess the feasibility of applying cold heavy-oil production in horizontal wells that have been completed with slotted liners using less-aggressive (i.e., managed) sand-production strategies. Specifically, the effects of slot size, confining stress, fluid velocity, and sand-grain sorting on sand production were investigated.
The results indicate that slot-size selection is critical for establishing "sand on demand." From the experiments, a correlation between slot size and controlled sand production was found for well-sorted sands. This correlation should allow for the specification of appropriate slot sizes for target reservoirs containing well-sorted sands.
In the experiments, when flow rates resulted in low but persistent sand production, channels and/or elliptical dilated zones were created that greatly enhanced the effective permeability near the slot. This observation suggests that producing at low and steady sand cuts for a long period of time might bring two benefits: a way to transport the sand out of the well without causing plugging and the creation of high-permeability channels or zones that can improve production from the reservoir.
To summarize, if the appropriate slot size were combined with the right drawdown rates, controlled sand production could be achieved, with attendant significant increases in permeability. This suggests that substantially increased oil-production rates could be achieved from horizontal wells if sand-production rates could be maintained at low but persistent levels.
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Bratli, R.K. and Rinses, R. 1981. Stability and failure of sand arches.SPE J. 21 (2): 236-248. SPE-8427-PA. http://dx.doi.org/10.2118/8427-PA.
Cleary, M.P., Melvan, J.J., and Kohlhaas, C.A. 1979. The Effect of ConfiningStress and Fluid Properties on Arch Stability in Unconsolidated Sands. PaperSPE 8426 presented at the SPE Annual Technical Conference and Exhibition, LasVegas, Nevada, USA, 23-26 September. http://dx.doi.org/10.2118/8426-MS.
Coombe, D., Tremblay, B., Tran, D., and Ma, H. 2001. CoupledHydro-Geomechanical Modelling of the Cold Production Process. Paper SPE 69719presented at the SPE International Thermal Operations and Heavy Oil Symposium,Porlama, Margarita Island, Venezuela, 12-14 March. http://dx.doi.org/10.2118/69719-MS.
Dullien, F.A.L. 1975. Single phase flow through porous media and porestructure. The Chemical Engineering Journal 10 (1): 1-34.http://dx.doi.org/10.1016/0300-9467(75)88013-0.
Dusseault, M.B., Geilikman, M., and Spanos, T. 1998. Mechanism of MassiveSand Production in Heavy Oils. Paper presented at the 7th UNITAR InternationalConference on Heavy Crude and Tar Sands, Beijing, 27-31 October.
Fjær, E., Holt, R.M., Horsrud, P., Raaen, A.M., and Rinses, R. 1992.Petroleum Related Rock Mechanics, No. 33. Amsterdam: Developments inPetroleum Science, Elsevier.
Harr, M.E. 1991. Groundwater and Seepage. New York: DoverPublications.
Huang, W.S., Marcum, B.E., Chase, M.R., and Yu, C.L. 1998. Cold Productionof Heavy Oil From Horizontal Wells in the Frog Lake Field. SPE Res Eval& Eng 1 (6): 551-555. SPE-52636-PA. http://dx.doi.org/10.2118/52636-PA.
Loughead, D. and Saltuklaroglu, M. 1992. Why So Unusual? Paper presented atthe 9th Annual Heavy Oil and Oil Sands Technical Symposium, Calgary, 11March.
McCaffrey, W. and Bowman, R. 1991. Recent Successes in Primary BitumenProduction. Paper presented at the 8th Annual Heavy Oil and Oil Sands TechnicalSymposium, Calgary, 14 March.
Metwally, M. and Solanki, S. 1995. Heavy Oil Reservoir Mechanisms, Lindberghand Frog Lake Fields, Alberta. Part I: Field Observation and ReservoirSimulation. Paper PETSOC 95-63 presented at the Petroleum Society's 46th AnnualTechnical Meeting, Calgary, 14-17 May. http://dx.doi.org/10.2118/95-63.
Meza, B. 2001. Experimental Investigation of Sand Production into aHorizontal Well Slot. MSc thesis, School of Mining and PetroleumEngineering, University of Alberta, Edmonton, Alberta.
Meza, B. 2008. Sand on Demand an Approach to Improving Productivity inHorizontal Wells under Heavy Oil Primary Production. PhD dissertation,School of Mining and Petroleum Engineering, University of Alberta, Edmonton,Alberta.
Meza-Díaz, B., Sawatzky, R.P., and Kuru, E. 2008. Sand on Demand: AnApproach to Improving Productivity in Horizontal Wells Under Heavy Oil PrimaryProduction. Paper SPE 115625 presented at the SPE Annual Technical Conferenceand Exhibition, Denver, 21-24 September. http://dx.doi.org/10.2118/115625-MS.
Meza-Díaz, B., Sawatzky, R.P., and Kuru, E. 2010. Sand on Demand forHorizontal Wells: Tracking Behaviour with the CT Scanner. Paper SPE 134493presented at the SPE Annual Technical Conference and Exhibition, Florence,Italy, 19-22 September. http://dx.doi.org/10.2118/134493-MS.
Meza-Díaz, B., Tremblay, B., and Doan, Q. 2003. Mechanisms of SandProduction Through Horizontal Well Slots in Primary Production. J Can PetTechnol 42 (10): 36-46. JCPT Paper No. 03-10-04. http://dx.doi.org/10.2118/03-10-04.
Miller, W.G. 1994. Sand Flow Mechanisms at Well Casing Perforations.MSc dissertation, Department of Civil Engineering, University of Alberta,Edmonton, Alberta.
Penberthy, W.L. Jr. and Shaughnessy, C.M. 2002. Sand Control, fourthedition, Vol. 1. Richardson, Texas: SPE Series on Special Topics, SPE.
Powers, M.C. 1953. A new roundness scale for sedimentary particles. J.Sediment. Petrol. 23 (2): 117-119.
Sawatzky, R., Lillico, D.A., Vilcsak, G., and Tremblay, B. 1996. Initiationof Sand Production in the Cold Production Process. Paper CIM 96-25 presented atthe Petroleum Society's 47th Annual Technical Meeting (CIM), Calgary, 10-12June.
Sawatzky, R.P., Lillico, D.A., London, M.J., Tremblay, B.R., and Coates,R.M. 2002. Tracking cold production footprints. Paper CIPC 2002-086 presentedat the Petroleum Society's Canadian International Petroleum Conference (CIPC),Calgary, 11-13 June.
Selby, R.J. and Farouq Ali, S.M. 1988. Mechanics of Sand Production and theFlow of Fines in Porous Media. J Can Pet Technol 27 (3).CIM 88-03-05. http://dx.doi.org/10.2118/88-03-05.
Stein, N., Odeh, A.S., and Jones, L.G. 1974. Estimating Maximum Sand-FreeProduction Rates From Friable Sands for Different Well Completion Geometries.J Pet Technol 26 (10): 1156-1158. SPE-4534-PA. http://dx.doi.org/10.2118/4534-PA.
Tippie, D.B. and Kohlhaas, C.A. 1973. Effect of Flow Rate on Stability ofUnconsolidated Producing Sands. Paper SPE 4533 presented at the Fall Meeting ofthe Society of Petroleum Engineers of AIME, Las Vegas, Nevada, USA, 30September-3 October. http://dx.doi.org/10.2118/4533-MS.
Tremblay, B. 2005. Modelling of Sand Transport Through Wormholes. J CanPet Technol 44 (4). PETSOC-05-04-06. http://dx.doi.org/10.2118/05-04-06.
Tremblay, B. and Oldakowski, K. 2002. Wormhole growth and interaction in alarge sand pack. J. Pet. Sci. Eng. 34 (1-4): 13-34. http://dx.doi.org/10.1016/s0920-4105(02)00150-x.
Tremblay, B., Oldakowski, K., and Settari, A. 1997. Geomechanical Propertiesof Oil Sands at Low Effective Stress. Paper 97-07 presented at the PetroleumSociety's 48th Annual Technical Meeting, Calgary, 8-11 June.
Tremblay, B., Sedgwick, G., and Forshner, K. 1996. Imaging of SandProduction in a Horizontal Sand Pack by X-Ray Computed Tomography. SPE FormEval 11 (2): 94-98. SPE-30248-PA. http://dx.doi.org/10.2118/30248-PA.
Tremblay, B., Sedgwick, G., and Forshner, K. 1998. Modelling of SandProduction from Wells on Primary Recovery. J Can Pet Technol 37 (3): 41-50. JCPT Paper No. 98-03-03. http://dx.doi.org/10.2118/98-03-03.
Tremblay, B., Sedgwick, G., and Vu, D. 1999. A Review of Cold Production inHeavy Oil Reservoirs. Paper presented at the 10th European Symposium onImproved Oil Recovery, Brighton, UK, 18-20 August.
Wong, R.C.K. 2003. Sand Production in Oil Sand Under Heavy Oil Foamy Flow.J Can Pet Technol 42 (3). PETSOC-03-03-06. http://dx.doi.org/10.2118/03-03-06.
Yeung, K.C. 1995. Cold flow production of crude bitumen at the Burnt LakeProject, North Alberta. Paper 12-17 February presented at the 6th UNITARInternational Conference on Heavy Crude and Tar Sands, Houston.
Yim, K., Dusseault, M.B., and Zhang, L. 1994. Experimental Study of SandProduction Processes Near an Orifice. Paper SPE 28068 presented at the RockMechanics in Petroleum Engineering SPE/ISRM International Conference (EUROCK'94), Delft, The Netherlands, 29-31 August. http://dx.doi.org/10.2118/28068-MS.