Produced-Water Reinjection in Deep Offshore Miocene Reservoirs, Block 17, Angola
- Marc Mainguy (Total S.A.) | Sebastien Perrier (Total S.A.) | Erwan Buré (Total E&P Americas)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- May 2020
- Document Type
- Journal Paper
- 292 - 307
- 2020.Society of Petroleum Engineers
- injectivity, fracturing, deepwater, conformance, water quality
- 13 in the last 30 days
- 171 since 2007
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In this paper we examine the changes in the injectivity of wells reinjecting produced water in two fields from Block 17, offshore Angola. This analysis suggests that the water quality has a direct impact on well injectivity during matrix injection. Well impairment caused by desulfated seawater treated with membrane technology appears immaterial in comparison with the injectivity declines observed during produced-water reinjection (PWRI). The decline rate is much quicker for the field with the worst quality of treated produced water. Injectivity enhancements observed during seawater-injection tests demonstrate that the matrix decline is partially reversible. However, permanent damage also develops with time; it is not possible to recover the initial injectivity after a long period of injection with produced water.
The analysis also shows that fracture injection can effectively mitigate the strong injectivity declines experienced in the field with the worst quality of treated produced water. Fracture injection comes with higher injection pressures, even when operating the wells at low flow rates. As a result, the injectivity index (II), as conventionally defined, displays a strong flow-rate dependency, making it inappropriate for measuring the well performance in fracture condition. Besides the limitations of the high injection pressures, fracture injection was found detrimental to injection conformance in wells with commingled water injection in several reservoir layers. In this situation, most of the injection is thought to take place in the shallowest layer where the fracture is likely to grow, leaving little injection for deeper reservoir layers.
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Abou-Sayed, A. S., Zaki, K. S., Wang, G. et al. 2007. Produced Water Management Strategy and Water Injection Best Practices: Design, Performance, and Monitoring. SPE Prod & Oper 22 (1): 59–68. SPE-108238-PA. https://doi.org/10.2118/108238-PA.
Abou-Sayed, A. S., Zaki, K. S., Wang, G. G. et al. 2005. A Mechanistic Model for Formation Damage and Fracture Propagation During Water Injection. Presented at the SPE European Formation Damage Conference, Scheveningen, The Netherlands, 25–27 May. SPE-94606-MS. https://doi.org/10.2118/94606-MS.
Al-Abduwani, F. A. H., Shirzadi, A., van den Broek, W. M. G. T. et al. 2005. Formation Damage vs. Solid Particles Deposition Profile During Laboratory-Simulated Produced-Water Reinjection. SPE J. 10 (2): 138–151. SPE-82235-PA. https://doi.org/10.2118/82235-PA.
Ali, M. A. J., Currie, P. K., and Salman, M. J. 2009. The Effect of Residual Oil on Deep-Bed Filtration of Particles in Injection Water. SPE Prod & Oper 24 (1): 117–123. SPE-107619-PA. https://doi.org/10.2118/107619-PA.
Barkman, J. H. and Davidson, D. H. 1972. Measuring Water Quality and Predicting Well Impairment. J Pet Technol 24 (7): 865–873. SPE-3543-PA. https://doi.org/10.2118/3543-PA.
Buret, S., Nabzar, L., and Jada, A. 2008. Emulsion Deposition in Porous Media: Impact on Well Injectivity. Presented at the Europec/EAGE Annual Conference and Exhibition, Rome, Italy, 9–12 June. SPE-113821-MS. https://doi.org/10.2118/113821-MS.
Buret, S., Nabzar, L., and Jada, A. 2010. Water Quality and Well Injectivity: Do Residual Oil-in-Water Emulsions Matter? SPE J. 15 (2): 557–568. SPE-122060-PA. https://doi.org/10.2118/122060-PA.
Dave, H. and Murat, K. 2015. Water Injection Pressure Protection System (WIPPS) in Deep-Water Development Offshore Brazil. Presented at the Offshore Technology Conference, Houston, Texas, 4–7 May. SPE-25815-MS. https://doi.org/10.4043/25815-MS.
De Pater, C. J. and Dong, Y. 2007. Experimental Study of Hydraulic Fracturing in Sand as a Function of Stress and Fluid Rheology. Presented at the SPE Hydraulic Fracturing Technology Conference, College Station, Texas, 29–31 January. SPE-105620-MS. https://doi.org/10.2118/105620-MS.
Detienne, J.-L., Danquigny, J., Lacourie, Y. et al. 2002. Produced Water Re-Injection on a Low Permeability Carbonaceous Reservoir. Presented at the 10th Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, UAE, 13–16 October. SPE-78482-MS. https://doi.org/10.2118/ 78482-MS.
Eylander, J. G. R. 1988. Suspended Solids Specifications for Water Injection from Coreflood Tests. SPE Res Eng 3 (4): 1287–1294. SPE-16256-PA. https://doi.org/10.2118/16256-PA.
Feia, S., Sulem, J., Canou, J. et al. 2016. Changes in Permeability of Sand During Triaxial Loading: Effect of Fine Particles Production. Acta Geotech 11 (1): 1–19. https://doi.org/10.1007/s11440-014-0351-y.
Golovin, E., Jasarevic, H., Chudnovsky, A. et al. 2010. Observation and Characterization of Hydraulic Fracture in Cohesionless Sand. Presented at the 44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium, Salt Lake City, Utah, 27–30 June. ARMA-10-359.
Hjelmas, T. A., Bakke, S., Hilde, T. et al. 1996. Produced Water Reinjection: Experiences from Performance Measurements on Ula in the North Sea. Presented at the International Conference on HSE, New Orleans, Louisiana, 9–12 June. SPE-35874-MS. https://doi.org/10.2118/35874-MS.
Hsi, C. D., Dudzik, D. S., Lane, R. H. et al. 1994. Formation Injectivity Damage Due to Produced Water Reinjection. Presented at Formation Damage Control Symposium, Lafayette, Louisiana, 7–10 February. SPE-27395-MS. https://doi.org/10.2118/27395-MS.
Khodaverdian, M., Rahim, H., Seli, P. et al. 2016. Geomechanical Aspects of Waterflooding: Setting Strategies and Operational Limits for Containment. Presented at the International Petroleum Technology Conference, Bangkok, Thailand, 14–16 November. IPTC-18790-MS. https://doi.org/10.2523/IPTC-18790-MS.
Martins, J. P., Murray, L. R., Clifford, P. J. et al. 1995. Produced-Water Reinjection and Fracturing in Prudhoe Bay. SPE Res Eng 10 (3): 176–182. SPE-28936-PA. https://doi.org/10.2118/28936-PA.
Menezes, C. A., Benchimol, L., Mcewan, M. J. et al. 2012. Improving Well Productivity/Injectivity on Deepwater Offshore Horizontal Drains. Presented at the International Conference and Exhibition on Formation Damage Control, Lafayette, Louisiana, 15–17 February. SPE-150999-MS. https://doi.org/10.2118/150999-MS.
Navarro, W. and Muro, L. 2007. Produced Water Reinjection in Mature Field with High Water Cut. Presented at the SPE Latin American and Caribbean Petroleum Engineering Conference, Buenos Aires, Argentina, 15–18 April. SPE-108050-MS. https://doi.org/10.2118/108050-MS.
Ochi, J. and Oughanem, R. 2018. An Experimental Investigation of Formation Damage Induced by PWRI in Unconsolidated Sands. Presented at the International Conference and Exhibition on Formation Damage Control, Lafayette, Louisiana, 7–9 February. SPE-189513-MS. https://doi.org/10.2118/189513-MS.
Olson, J. E., Yaich, E., and Holder, J. 2009. Permeability Changes Due to Shear Dilatancy in Uncemented Sands. Presented at the 43rd US Rock Mechanics Symposium and 4th US-Canada Rock Mechanics Symposium, Asheville, North Carolina, 28 June–1 July. ARMA-09-157.
Onaisi, A., Ochi, J., Mainguy, M. et al. 2011. Modelling Non-Matrix Flow and Seals Integrity in Soft Sand Reservoirs. Presented at the SPE European Formation Damage Conference, Noordwijk, The Netherlands, 7–10 June. SPE-144801-MS. https://doi.org/10.2118/144801-MS.
Paige, R. W. and Murray, L. R. 1994. Re-Injection of Produced Water—Field Experience and Current Understanding. Presented at the SPE/ISRM Rock Mechanics in Petroleum Engineering, Delft, The Netherlands, 29–31 August. SPE-28121-MS. https://doi.org/10.2118/28121-MS.
Pedenaud, P., Hurtevent, C., and Baraka-Lokmane, S. 2012. Industrial Experience in Sea Water Desulfation. Presented at the International Conference and Exhibition on Oilfield Scale, Aberdeen, UK, 30–31 May. SPE-155123-MS. https://doi.org/10.2118/155123-MS.
Rousseau, D., Latifa, H., and Nabzar, L. 2008. Injectivity Decline from Produced-Water Reinjection: New Insights on In-Depth Particle-Deposition Mechanisms. SPE Prod & Oper 23 (4): 525–531. SPE-107666-PA. https://doi.org/10.2118/107666-PA.
Settari, T. 2000. Note on the Calculation of PWRI Well Injectivity Index. Joint Industry Program on Produced Water Reinjection Performance. Houston, Texas: Advantek International Corp.
Sharma, M. M., Pang, S., Wennberg, K. E. et al. 2000. Injectivity Decline in Water-Injection Wells: An Offshore Gulf of Mexico Case Study. SPE Prod & Fac 15 (1): 6–13. SPE-60901-PA. https://doi.org/10.2118/60901-PA.
Souilah, R., Brocart, B., Ourir A. et al. 2014. Produced Water Re-Injection in a Deep Offshore Environment—Angola Block 17. Presented at the SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, 26–28 February. SPE-168216-MS. https://doi.org/10.2118/168216-MS.
Tipura, L., Tjomsland, T., and Fagerbakke, A.-K. 2013. Increasing Oil Recovery on the Grane Field with Challenging PWRI. Presented at the Offshore Technology Conference, Rio de Janeiro, Brazil, 29–31 October. OTC-24532-MS. https://doi.org/10.4043/24532-MS.
van den Hoek, P. J., Matsuura, T., de Kroon, M. et al. 1996. Simulation of Produced Water Re-Injection Under Fracturing Conditions. Presented at the European Petroleum Conference, Milan, Italy, 22–24 October. SPE-36846-MS. https://doi.org/10.2118/36846-MS.
van den Hoek, P. J., Sommerauer, G., Nnabuihe, L. et al. 2000. Large-Scale Produced Water Re-Injection Under Fracturing Conditions in Oman. Presented at the 9th Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, United Arab Emirates, 15–18 October. SPE-87267-MS. https://doi.org/10.2118/87267-MS.
van Oort, E., van Velzen, J. F. G., and Leerlooijer, K. 1993. Impairment by Suspended Solids Invasion: Testing and Prediction. SPE Prod & Fac 8 (3): 178–184. SPE-23822-PA. https://doi.org/10.2118/23822-PA.
Vetter, O. J., Kandarpa, V., Stratton, M. et al. 1987. Particle Invasion into Porous Medium and Related Injectivity Problems. Presented at the International Symposium on Oilfield Chemistry, San Antonio, Texas, 4–6 February. SPE-16255-MS. https://doi.org/10.2118/16255-MS.
Xu, B. and Wong, R. C. K. 2010. A 3D Finite Element Model for History Matching Hydraulic Fracturing in Unconsolidated Sands Formation. J Can Pet Technol 49 (4): 58–66. SPE-136697-PA. https://doi.org/10.2118/136697-PA.
Zhai, Z. and Sharma, M. M. 2005. A New Approach to Modeling Hydraulic Fractures in Unconsolidated Sands. Presented at the SPE Annual Technical Conference and Exhibition, Dallas, Texas, 9–12 October. SPE-96246-MS. https://doi.org/10.2118/96246-MS.
Zhang, N. S., Somerville, J. M., and Todd, A. C. 1993. An Experimental Investigation of the Formation Damage Caused by Produced Oily Water Injection. Presented at the Offshore European Conference, Aberdeen, UK, 7–10 September. SPE-26702-MS. https://doi.org/10.2118/26702-MS.