Does Polymer's Viscoelasticity Influence Heavy Oil Sweep Efficiency and Injectivity at 1ft/Day?
- Madhar Sahib Azad (University of Alberta) | Japan J. Trivedi (University of Alberta)
- Document ID
- Society of Petroleum Engineers
- SPE International Heavy Oil Conference and Exhibition, 10-12 December, Kuwait City, Kuwait
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Petroleum Engineers
- 5.5.2 Core Analysis, 1.6.9 Coring, Fishing, 1.6 Drilling Operations, 5.3.6 Chemical Flooding Methods (e.g., Polymer, Solvent, Nitrogen, Immiscible CO2, Surfactant, Vapex), 5.7.2 Recovery Factors, 5 Reservoir Desciption & Dynamics, 5.7 Reserves Evaluation, 5.4 Improved and Enhanced Recovery
- Injectivity, Rheology, Polymer flooding, Heavy oil, Sweep efficiency
- 2 in the last 30 days
- 164 since 2007
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For heavy oil recovery applications, mobility control is more important than interfacial tension (IFT) reduction and therefore, importance should be given to the recovery of remaining mobile oil by enhanced sweep efficiency. While the relative role of polymer's viscosity and elasticity on capillary-trapped residual light oil recovery has been studied extensively, their role on the sweeping the mobile viscous oil has not been explored. Injectivity is vital for heavy oil recovery applications and polymer selection criteria are done solely based on shear rheology. In this paper, the influence of viscous (shear) resistance and elastic (extensional) resistance of viscoelastic polymer on the mobile heavy oil recovery and injectivity is investigated through the combination of bulk shear/extensional rheology and single phase, and multiphase core flood experiments at typical reservoir flooding rate of 1 ft/day.
Two polymer solutions with different concentration and salinity are selected such that low molecular weight (Mw) polymer (HPAM 3130) provides higher shear resistance than high Mw polymer (HPAM 3630). Extensional characterization of these two polymer solutions performed using capillary breakup extensional rheometer revealed that HPAM 3630 provided higher extensional resistance than HPAM 3130. The results show that the behavior of polymers in extension and shear is completely different. Two multiphase and two single-phase experiments are conducted at low flux rate to investigate the role of extensional viscosity on mobile heavy oil recovery and high flux rates on injectivity. After 1 PV of polymer injections, higher concentration and lower Mw HPAM 3130 contributes to ~17% higher incremental recovery factor over lower concentration and higher Mw HPAM 3630. The core scale pressure drop generated by HPAM 3130 is more than twice the pressure drop generated by HPAM 3630. Under low flux rate conditions at the core scale, shear forces dominate and displacing fluid with higher shear viscosity contribute to better sweep. HPAM 3630 exhibits shear thickening phenomenon and possess the apparent viscosity of ~ 90 cP at the flux rate of ~90 ft/day. Whereas HPAM 3130 continued showing shear thinning and has the apparent viscosity of around ~70 cP at ~ 90 ft/day. This signifies the role of extension rheology on the injectivity at higher flux rates.
Results revealed that while extensional rheological role towards sweeping the mobile heavy oil recovery at low flux is lesser when compared to shear role, its negative role on the polymer injectivity is very significant. Polymer selection criteria for heavy oil recovery applications should incorporate extensional rheological parameters.
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Afsharpoor, A., Balhoff, M.T., Bonnecaze, R., and Huh, C. 2012. CFD Modelling of the Effect of Polymer Elasticity on the Residual oil saturation at the pore-scale. Journal of Petroleum Science and Engineering. 94:79-88. https://doi.org/10.1016/j.petrol.2012.06.027
Azad, M.S., Sultan, A.S., Nuaim, S.A., Mahmoud, M.A., and Hussein, I.A. 2014. Could VES be a Part of Hybrid Option to Recover Heavy oil in Complex Heavy oil reservoirs. Presented at SPE Heavy oil Conference, Calgary, 10-12 June, SPE 170191-MS. https://doi.org/10.2118/170191-MS
Azad, M.S. and Trivedi, J.J. 2017. Injectivity Behavior of Copolymer and Associative polymers Decoded Using Extensional Viscosity Characterization: Effect of Hydrophobic Association. Presented at the SPE Western Regional Meeting, Bakersfield, 23-27 April, SPE 185668-MS. https://doi.org/10.2118/185668-MS
Azad, M.S., Dalsania, Y. and Trivedi, J.J. 2018a. Capillary breakup Extensional Rheometry of associative and hydrolyzed polyacrylamide for oil recovery applications. Journal of Applied Polymer Science. 135. 46253-46264. https://doi.org/10.1002/app.46253
Azad, M.S., Dalsania, Y. and Trivedi, J.J. 2018b. Understanding the Flow Behavior of Copolymer and Associative polymer using Extensional Viscosity Characterization: Effect of Hydrophobic Association, Canadian Journal of Chemical Engineering. 96 (11): 2498-2508. https://doi.org/10.1002/cjce.23169
Azad, M.S. and Trivedi, J.J. 2019. A Novel Viscoelastic Model for Predicting the Synthetic Polymer's Viscoelastic Behavior in Porous Media Using Direct Extensional Rheological Measurements. Fuel. 235: 218-226. https://doi.org/10.1016/j.fuel.2018.06.030
Besio, G.J., Prud'homme, R.K., and Benziger, J.B. 1988. Effect of Elongational Flow on Polymer Adsorption. Macromolecules. 21 (4): 1070-1074. 10.1021/ma00182a038
Chauveteau, G., Denys, K., Zaitoun, A. 2002. New Insight on Polymer Adsorption Under High Flow Rates. Presented at SPE Improved Oil Recovery Symposium, Tulsa, 13-17 April, SPE 10060-MS. https://doi.org/10.2118/10060-MS
Chen, G., Han, P., Shao, Z., Zhang, X., Ma, M., Lu, K., and Wei, C. 2011. History Matching Method for High Concentration Viscoelasticity Polymer flood in the Daqing Oilfield. Presented at the SPE EOR conference, Kuala Lampur, 19-21 July. SPE 144538-MS. https://doi.org/10.2118/144538-MS
Clarke. A., Howe. A.M., Mitchell, J.. 2015. How Viscoelastic Polymer flooding Enhanced Displacement Efficiency. Presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, Kuala Lampur, 11-13 August. SPE 174654-MS. https://doi.org/10.2118/174654-MS
Clemens, T., Kornberger, M., and Lueftenegger, M. 2016. Polymer Injection to Rejuvenate a Super mature oil field, Polymer pilot results, 8 TH Reservoir, Austria. Presented at the Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, 7-10 November, SPE 183010-MS. https://doi.org/10.2118/183010-MS
Delamaide, E. 2014. Polymer flooding of Heavy oil-From Screening to Full Field Extension. Presented at the SPE Heavy and Extra Heavy oil Conference, Medellin, 24-26 September, SPE 171105-MS. https://doi.org/10.2118/171105-MS
Delamaide, E. 2016. Comparison of Primary, Secondary and Tertiary Polymer Flood in the Heavy oil-Field Results. Presented at SPE Trinidad and Tobago Section Energy Resources Conference, Port of Spain, 13-15 June, SPE 180852-MS. https://doi.org/10.2118/180852-MS
Delshad, M., Kim, D.H., Magbagbeola, O.A.. 2008. Mechanistic Interpretation and Utilization of Viscoelastic Behaviour of Polymer Solutions for Improved Polymer-Flood Efficiency. Presented at SPE Improved Oil Recovery Symposium, Tulsa, 24-28 April, SPE 113620-MS. http://dx.doi.org/10.2118/113620-MS.
De Melo, M.A., De Holleben, C.R.C., Da Silva, I.P.G.. 2005. Evaluation of Polymer Injection Projects in Brazil. Presented at the SPE Latin American and Caribbean Petroleum Engineering Conference, Rio de Janeiro, 20-23 June, SPE 94898-MS. https://doi.org/10.2118/94898-MS
Greaves, B.L.Marshall, R.N. and Thompson, J.H. 1984 Hitts lake Unit Polymer Project. Presented at 59th Annual Technical Conference and Exhibition. Dallas, Texas. 16-19 September. SPE 13123-MS. https://doi.org/10.2118/13123-MS
Han, X.Q., Wang, W.Y., Xu, Y. 1995. The Viscoelastic Behavior of HPAM solutions in Porous media and its effect on the displacement efficiency. Presented at International meeting on Petroleum Engineering, Beijing, 14-17 November, SPE 30013-MS. https://doi.org/10.2118/30013-MS
Hirasakhi, G and Pope, G. 1974. Analysis of Factors Influencing Mobility and Adsorption in the Flow of Polymer Solutions through Porous Media. SPE Journal. 14 (4): 337-346. SPE-4026-PA. http://dx.doi.org/10.2118/4026-PA.
Hochanadel, S.M., Lunceford, M.L. and Farmer, C.W. 1990. A Comparison of 31 Minnelusa polymer floods with 24 Minnelusa water floods. Presented at the SPE IOR symposium, Tulsa, Oklahoma. 20-22 April, SPE 20234-MS. https://doi.org/10.2118/20234-MS
Jiang, H.F., Wu, W.X., Wang, D.M., Zeng, Y., Zhao, S., and Nie, J. 2008. The Effect of Elasticity on Displacement Efficiency in the Lab and Results of High Concentration Polymer Flooding in the Field. Presented at SPE Annual Technical Conference and Exhibition, Denver, Colorado, 21-24 September, SPE 115315-MS. https://doi.org/10.2118/115315-MS
Kim, D.H., Lee, S., Ahn, H.. 2010. Development of a Viscoelastic Property Database for EOR polymers. Presented at the SPE Improved Oil Recovery Symposium, 24-28 April, Tulsa, Oklahoma, SPE 129971-MS. https://doi.org/10.2118/129971-MS
Koh, H., Lee, V. B., and Pope, G. A. 2017. Experimental Investigation of the Effect of Polymers on Residual Oil Saturation. SPE Journal. 23 (1): 1-17. SPE-179683-PA. https://doi.org/10.2118/179683-PA.
Kumar, P., Raj, R., Koduru, N., Kumar, S., and Pandey, A. 2016. Field Implementation of Mangala Polymer Flood: Initial Challenges, Mitigation and Management. Presented at the SPE EOR conference at Oil and Gas, West Asia, 21-23 March, SPE 179820-MS. https://doi.org/10.2118/179820-MS
Lotfollahi, M., Farajzadeh, R., Delshad, M.. 2016. Mechanistic Simulation of Polymer Injectivity in Field Tests. SPE Journal. 21(04):1178-1191. SPE 174665-PA. http://dx.doi.org/10.2118/174665-PA.
Mack, J.C. and Warren, J. 1984. Performance and Operation of a Cross linked Polymer Flood at Sage Spring Creek Unit A, Natrona County, Wyoming, Journal of Petroleum Technology. 36 (07): 1145-1156. SPE 10876-PA. https://doi.org/10.2118/10876-PA.
Mack, J.C. and Duvall, M.L. 1984. Performance and Economics of Minnelusa Polymer Floods. Presented at the SPE Rocky Mountain Regional Meeting, Casper, Wyoming, 21-23 May, SPE 12929-MS. https://doi.org/10.2118/12929-MS
Maitin, B.K. 1992. Performance Analysis of Several Polyacrylamide Floods in North German Oil Fields. Presented at the SPE/DOE Enhanced Recovery Oil Symposium, Tulsa, 22-24 April, SPE 24118-MS. https://doi.org/10.2118/24118-MS
Masuda, Y., Tang, K.C., Miyazawa, M., and Tanaka, S. 1992. 1D Simulation of Polymer flooding including the viscoelastic effect of Polymer solutions. SPE Reservoir Evaluation and Engineering. 7 (02): 247-252. SPE19499-PA. http://dx.doi.org/10.2118/19499-PA.
Moffitt, P.D. and Mitchell, J.F. 1983. North Burbank Unit Commercial Scale Polymer flood Project. Presented at the Production Operation Symposium, Osage County, Oklahoma, February 27 - March 1. SPE 11560-MS. https://doi.org/10.2118/11560-MS
Needham, R.B. and Doe, P.H. 1987. Polymer Flooding Review. Journal of Petroleum Technology. 39(12): 1503-1507. SPE 17140-PA. https://doi.org/10.2118/17140-PA
Qi, P., Ehrenfried, D.H., Koh, H., and Balhoff, M.T., 2017. Reduction of Residual Oil Saturation in Sandstone Cores by the use of Viscoelastic Polymers. SPE Journal. 22 (02): 447. https://doi.org/10.2118/179689-PA
Ranjbar, M., Rupp, J., Pusch, G., and Meyn, R. 1992. Quantification and Optimization of Viscoelastic Effects of Polymer Solutions for Enhanced Oil Recovery. Presented at SPE IOR Symposium, Tulsa, Oklahoma, 22-24 April, SPE 24154-MS. https://doi.org/10.2118/24154-MS
Seright, R.S., Seheult, M. and Kelco, C.P. 2009. Injectivity Characteristic of EOR polymers. SPE Reservoir Evaluation & Engineering. 12 (05): 783-792. https://doi.org/10.2118/115142-PA
Seright, R. 2010. Potential for polymer flooding reservoirs with viscous oil. SPE Reservoir Evaluation and Engineering. 13(4). SPE 129899-PA. https://doi.org/10.2118/129899-PA
Seright, R.S., Fan, T., Wavrik, K., and Balaban, R.D.C. 2011. New Insights into Polymer Rheology in Porous Media. SPE Journal. 16 (1): 35-42. SPE 129200-PA. https://doi.org/10.2118/129200-PA
Seright, R.S. 2017. How Much Polymer should be Injected during a Polymer Flood? Review of Previous and Current Practices. SPE J. 22 (1): 1-18. SPE 179543-PA. https://doi.org/10.2118/179543-PA
Seright, R.S., Wang, D., Lerner, N., Nguyen A., Sabid, J. and Tochor, R. 2018. Can 25-cP Polymer Solution Efficiently Displace 1,600 cP Oil During Polymer Flooding? SPE Journal. SPE 190321-PA. https://doi.org/10.2118/190321-PA.
Sheng, J.J., Leonhardt, B., and Azri, N. 2015. Status of Polymer-Flooding Technology. Journal of Canadian Petroleum Technology. 54 (02): 116-126. https://doi.org/10.2118/174541-PA
Standnes, D.C. and Skjevrak, I. 2014. Literature Review of Implemented Polymer Field Projects. Journal of Petroleum Science and Technology. 122: 761-775. https://doi.org/10.1016/j.petrol.2014.08.024
Stavland, A., Jonsbraten, H.C., Lohne, A.. 2010. Polymer flooding - Flow Properties in Porous Media versus Rheological Parameters. Presented at SPE EUROPEC/EAGE Annual Conference and Exhibition, Barcelona, 14-17 June, SPE 131103-MS. http://dx.doi.org/10.2118/131103-MS.
Taber, J. J. 1969. Dynamic and Static Forces Required to Remove Discontinuous Oil Phase from Porous Media Containing Both Oil and Water. SPE Journal. 9 (01): 3-12. SPE 2098-PA. https://doi.org/10.2118/2098-PA
Trantham, J.C. and Moffitt, P.D. 1982. North Burbank Unit 1440-Acre Pilot Polymer Flood Project Design. Presented at SPE Enhanced Oil Recovery Symposium, Oklahoma, Tusla, 4-7 April, SPE 10717-MS. https://doi.org/10.2118/10717-MS
Vermolen, E.C.M., van Haasterecht, M.J.T., Masalmeh, S.K. 2014. A Systematic Study of the Polymer Viscoelastic Effects on the Residual oil Saturation by Core Flooding. Presented at the SPE EOR conference, Muscat, March 31 - April 2, SPE 169681-MS. https://doi.org/10.2118/169681-MS
Wang, D., Cheng, J., Yang, Q., Wenchao, G. and Qun, L. 2000. Viscous-Elastic Polymer Can Increase Microscale Displacement Efficiency in Cores. Presented at the 2000 SPE Annual Technical Conference and Exhibition, Dallas, 1-4 October, SPE 63227-MS. http://dx.doi.org/10.2118/63227-MS.
Wang, D., Xia, H., Liu, Z., Yang, Q. 2001. Study of the Mechanism of Polymer Solution with Visco-Elastic Behavior Increasing Microscopic Oil Displacement Efficiency and the Forming of Steady "Oil Thread" Flow Channels. Presented at the 2001 SPE Asia Pacific Oil and Gas Conference and Exhibition, Jakarta, 17-19 April, SPE 68723-MS. http://dx.doi.org/10.2118/68723-MS
Wang, D.M., Wang, G, Wu, W.Xia, H., and Yin, H. 2007. The Influence of Viscoelasticity on Displacement Efficiency-from Micro to Macro Scale. Presented at SPE Annual Technical Conference and Exhibition, Anaheim, California, 11-14 November 2007, SPE 109016-MS. https://doi.org/10.2118/109016-MS
Wassmuth, F.R., Green, K., Arnold, W., and Cameron, N. 2009. Polymer flood Application to Improve Heavy oil Recovery at East Bodo. Journal of Canadian Petroleum Technology. 48 (02): 55-61. https://doi.org/10.2118/09-02-55
Wassmuth, F.R., Green, K. and Bai J. 2012. Associative Polymers Outperform Regular Polymers Displacing Heavy oil in Heterogeneous Systems. Presented at SPE Heavy oil conference, Calgary, Alberta, 12-14 June. SPE 157916-MS. https://doi.org/10.2118/157916-MS
Xia, H., Wang, D., Wu, J., and Kong F. 2004. Elasticity of HPAM Solutions Increases Displacement Efficiency under Mixed Wettability Conditions. Presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, 18-20 October, SPE 88456-MS. http://dx.doi.org/10.2118/88456-MS.
Xia, H., Wang, D., and Wu, W. Effect of Viscoelasticity of Displacing Fluids on the Relationship between the capillary number and displacement efficiency in weak oil-wet core. Presented at the Asia Pacific Oil and Gas Conference and Exhibition, Jakarta, 30 October-1 November, SPE 109228-MS. https://doi.org/10.2118/109228-MS
Zamani, N., Bondino, I., Kaufmann R., and Skauge, A. 2015. Effect of Porous Media Properties on the Onset of Polymer Extensional Viscosity. Journal of Petroleum Science and Technology. 133: 483-495. https://doi.org/10.1016/j.petrol.2015.06.025