Preflush Design for Oil-Wet Carbonate Formations: Key To Enhance Scale-Inhibitor-Squeeze Lifetime
- Bisweswar Ghosh (The Petroleum Institute) | Xin Li (The Petroleum Institute) | Mohamad Yousef Alklih (The Petroleum Institute)
- Document ID
- Society of Petroleum Engineers
- SPE Journal
- Publication Date
- June 2016
- Document Type
- Journal Paper
- 776 - 785
- 2016.Society of Petroleum Engineers
- Chemical Squeeze Treatment, Surfactant-Alkali, Scale Inhibition
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- 265 since 2007
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Scale-inhibitor-squeeze lifetime is measured by the duration for which the scale-inhibiting chemical is released at a concentration greater than the required minimum inhibitor concentration (MIC). Hence, enhancing scale-inhibitor adsorption and storage may proportionately enhance squeeze lifetime. With most oilfield squeeze scale inhibitors being aqueous-based, they are unlikely to be adsorbed on an oil-wet formation in optimal quantity. Investigations are made in this research on how to create the appropriate formation condition so that adsorption and lifespan of scale inhibitor in an oil-wet carbonate reservoir are enhanced, focusing on preflush design (formation-conditioning stage). Surfactants (of anionic and nonionic type), a cosurfactant, and alkali are deployed and results are evaluated through interfacial tension (IFT), phase-behavior analysis, coreflood studies, and inductively coupled plasma-mass spectroscopy (ICP-MS) analysis. Flow experiments are conducted in simulated reservoir condition by use of data and materials from a high-temperature and high-salinity carbonate reservoir. The results reveal that nonionic surfactant is most favorable in terms of scale-inhibitor-squeeze lifetime, which is enhanced by as much as 240% compared with conventional treatment. It is concluded that through correct preflush design and formation conditioning, scale-inhibitor-squeeze lifetime can be extended significantly.
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Al-Hashim, H., Obiora, V., Al-Yousef, Y. et al. 1996. Alkaline Surfactant Polymer Formulation for Saudi Arabian Carbonate Reservoirs. Presented at SPE/DOE Symposium on Improved Oil Recovery, Tulsa, 21–24 April. SPE-35353-MS. http://dx.doi.org/10.2118/35353-MS.
API RP 27, Recommended Practice for Determining Permeability of Porous Media, third edition. 1956. Washington, DC: API.
API RP 42, Recommended Practice for Laboratory Testing of Surface Active Agents for Well Stimulation, second edition. 1977. Washington, DC: API.
Bazin, B., Kohler, N., Broseta, D. et al. 2002. An Integrated Approach forthe Design of Squeeze of Mineral Scale Inhibitors. Presented at the Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, 13–16 October. SPE-78544-MS. http://dx.doi.org/10.2118/78544-MS.
Browning, F., and Fogler, H. 1995. Precipitation and Dissolution of Calcium-Phosphonates for the Enhancement of Squeeze Lifetimes. SPE Prod & Fac 10 (3): 144–150. SPE-25164-PA. http://dx.doi.org/10.2118/25164-PA.
Díaz, D. and Velázquez, M. 2007. Variation of the Critical Micelle Concentration with Surfactant Structure: A Simple Method To Analyze the Role of Attractive–Repulsive Forces on Micellar Association. Chem. Educator 12 (5): 327–330.
Eastoe, J. 2005. Microemulsions. In Colloid Science: Principles, Methods and Applications, second edition, ed. T. Cosgrove, Chap. 5, 77–96. Hoboken, New Jersey: Wiley-Blackwell.
Foster, W. 1973. A Low-Tension Waterflooding Process. J Pet Technol 25 (2): 205–210. SPE-3803-PA. http://dx.doi.org/10.2118/3803-PA.
French, T. and Burchfield, T. 1990. Design and Optimization of Alkaline Flooding Formulations. Presented at the SPE/DOE Seventh Symposium on Enhanced Oil Recovery, Tulsa, 22–25 April. SPE-20238-MS. http://dx.doi.org/10.2118/20238-MS.
French, T., Josephson, C. and Evans, D. 1991. The Effect of Alkaline Additives on the Performances of Surfactant Systems Designed to Recover Light Crude Oil. Report No. NIPER-506 for the US Department of Energy, National Institute for Petroleum and Energy Research, Bartlesville, Oklahoma (February 1991).
Gdanski, R. 2008. Formation Mineralogy Impacts Scale Inhibitor Squeeze Designs. Presented at the Europec/EAGE Conference and Exhibition, Rome, 9–12 June. SPE-113261-MS. http://dx.doi.org/10.2118/113261-MS.
Ghosh, B. and Obasi, D. 2013. Eco-Friendly Surfactant for EOR in High Temperature, High Salinity Carbonate Reservoir. Presented at SPE Enhanced Oil Recovery Conference, Kuala Lumpur, 2–4 July. SPE-165219-MS. http://dx.doi.org/10.2118/165219-MS.
Graham, G., Boak, L. S. and Sorbie, K. 2003. The Influence of Formation Calcium and Magnesium on the Effectiveness of Generically Different Barium Sulphate Oilfield Scale Inhibitors. SPE Prod & Fac 18 (1): 28–44. SPE-81825-PA. http://dx.doi.org/10.2118/81825-PA.
Griffin, W. 1949. Classification of Surface-Active Agents by HLB. J. Soc. Cosmet. Chem. 1 (5): 311–326.
Gupta, R. and Mohanty, K. 2011. Wettability Alteration Mechanism for Oil Recovery from Fractured Carbonate Rocks. Transport Porous Med. 87 (2): 635–652. http://dx.doi.org/10.1007/s11242-010-9706-5.
Gupta, R., Mohan, K. and Mohanty, K. 2009. Surfactant Screening for Wettability Alteration in Oil-wet Fractured Carbonates. Presented at the SPE Annual Technical Conference and Exhibition, New Orleans, 4–7 October. SPE-124822-MS. http://dx.doi.org/10.2118/124822-MS.
Hirasaki, G. and Zhang, D. 2004. Surface Chemistry of Oil Recovery From Fractured, Oil-Wet, Carbonate Formations. SPE J. 9 (2): 151–162. SPE-88365-PA. http://dx.doi.org/10.2118/88365-PA.
Iglauer, S., Sarmadivaleh, M., Geng, C. et al. 2014. In-Situ Residual Oil Saturation And Cluster Size Distribution In Sandstones After Surfactant Flooding Imaged With X-ray Micro-computed Tomography. Presented at International Petroleum Technology Conference, Doha, 19–22 January. IPTC-17312-MS. http://dx.doi.org/10.2523/IPTC-17312-MS.
Iglauer, S., Wu, Y., Shuler, P. J. et al. 2004. Alkyl Polyglycoside Surfactants for Improved Oil Recovery. Presented at the SPE Improved Oil Recovery Symposium, Tulsa, 17–21 April. SPE-89472-MS. http://dx.doi.org/10.2118/89472-MS.
Jones, S. and Dreher, K. 1976. Cosurfactants in Micellar Systems Used for Tertiary Oil Recovery. SPE J. 16 (3): 161–167. SPE-5566-PA. http://dx.doi.org/10.2118/5566-PA.
Jordan, M., Sorbie, K., Ping, J. et al. 1994. Phosphonate Scale Inhibitor Adsorption/Desorption and the Potential for Formation Damage in Reconditioned Field Core. Presented at the SPE Formation Damage Control Symposium, Lafayette, Louisiana, 7–10 February. SPE-27389-MS. http://dx.doi.org/10.2118/27389-MS.
Kan, A., Fu, G., Shen, D. et al. 2008. Enhanced Inhibitor Treatments with the Addition of Transition Metal Ions. Presented at the SPE International Oilfield Scale Conference, Aberdeen, UK, 28–29 May. SPE-114060-MS. http://dx.doi.org/10.2118/114060-MS.
Kan, A., Gerbino, A., Oddo, J. et al. 1993. A Mechanistic Interpretation of the Precipitation and Dissolution of Divalent Metal Phosphonate. Paper no. 93459, NACE International, December 1993.
Kumar, M., Senden, T., Knackstedt, M. et al. 2008. Imaging of Pore Scale Distribution of Fluids and Wettability. Oral presentation of paper SCA2008–16 given at the International Symposium of the Society of Core Analysts, Abu Dhabi, 29 October–2 November.
Lorenz, P. 1991. The Effect of Alkaline Agents on Retention of EOR Chemicals. Report No. NIPER-535, US Department of Energy, National Petroleum Technology Office, Tulsa, July 1991.
Mackay, E. and Jordan, M. 2003. SQUEEZE Modelling: Treatment Design and Case Histories. Presented at the SPE European Formation Damage Conference, Hague, The Netherlands, 13–14 May. SPE-82227-MS. http://dx.doi.org/10.2118/82227-MS.
Martin, F. and Oxley, J. 1985. Enhanced Recovery of a “J” Sand Crude Oil with a Combination of Surfactant and Alkaline Chemicals. Presented at the SPE Annual Technical Conference and Exhibition, Las Vegas, Nevada, 22–26 September. SPE-14293-MS. http://dx.doi.org/10.2118/14293-MS.
Olsen, D. K., Hicks, M. D., Hurd, B. G. et al. 1990. Design of a Novel Flooding System for an Oil-Wet Central Texas Carbonate Reservoir. Presented at the SPE/DOE Symposium, Tulsa, 22–25 April. SPE-20224-MS. http://dx.doi.org/10.2118/20224-MS.
Paswan, R. 2008. Optimization of Scale Squeeze Treatment Designed for Heterogeneous Reservoir. Presented at ECMOR XI – 11th European Conference on the Mathematics of Oil Recovery, Bergen, Norway, 8 September. http://dx.doi.org/10.3997/2214-4609.20146447.
Qutubuddin, S. and Miller, C. 1984. Phase Behavior of pH-Dependent Microemulsions. J. Colloid Interfac. Sci. 101 (1): 46–58. http://dx.doi.org/10.1016/0021-9797(84)90007-9.
Santa, M., Alvarez-Ju¨rgenson, G., Busch, S. et al. 2011. Sustainable Surfactants in Enhanced Oil Recovery. Presented at SPE Enhanced Oil Recovery Conference, Kuala Lumpur, 19–21 July. SPE-145039-MS. http://dx.doi.org/10.2118/145039-MS.
Sorbie, K. and Mackay, E. 2005. Scale Inhibitor Placement: Back to Basics - Theory and Examples. Presented at the SPE International Symposium on Oilfield Scale, Aberdeen, UK, 11–12 May. SPE-95090-MS. http://dx.doi.org/10.2118/95090-MS.
Standnes, D. and Austad, T. 2003. Nontoxic Low-Cost Amines as Wettability Alteration Chemicals in Carbonates. J. Pet. Sci. Eng. 39 (3–4): 431–446. http://dx.doi.org/10.1016/S0920-4105(03)00081-0.
Standnes, D., Nogaret, L., Chen, L. et al. 2002. An Evaluation of Spontaneous Imbibition of Water into Oil-Wet Carbonate Reservoir Cores using a Nonionic and a Cationic Surfactant. Energ. Fuel. 16 (6): 1557–1564. http://dx.doi.org/10.1021/ef0201127.
Thompson, A., Kotlar, H. and Gangstad, A. 2008. Oilfield Data / Return Analysis: A Comparison of Scale Inhibitor Return Concentrations Obtained With a Novel Analytical Method and Current Commercial Techniques. Presented at the SPE International Oilfield Scale Conference, Aberdeen, UK, 28–29 May. SPE-114049-MS. http://dx.doi.org/10.2118/114049-MS.
Vazquez, O., Mackay, E., Al Shuaili, K. et al. 2008. Modelling a Surfactant Preflush with Non-Aqueous and Aqueous Scale Inhibitor Squeeze Treatments. Presented at the Europec/EAGE Conference and Exhibition, Rome, 9–12 June. SPE-113212-MS. http://dx.doi.org/10.2118/113212-MS.
Vazquez, O., Mackay, E., Jordan, M. et al. 2009. Impact of Mutual Solvent Preflushes on Scale Squeeze Treatments: Extended Squeeze Lifetime and Improved Well Clean-up Time. Presented at the 8th European Formation Damage Conference, Scheveningen, Netherlands, 27–29 May. SPE-121857-MS. http://dx.doi.org/10.2118/121857-MS.
Wu, Y., Shuler, P., Blanco, M. et al. 2008. An Experimental Study of Wetting Behavior and Surfactant EOR in Carbonates with Model Compounds. SPE J. 13 (1): 26–34. SPE-99612-PA. http://dx.doi.org/10.2118/99612-PA.
Xie, X., Weiss, W., Tong, Z. et al. 2005. Improved Oil Recovery from Carbonate Reservoirs by Chemical Stimulation. SPE J. 10 (3): 276–285. SPE-89424-PA. http://dx.doi.org/10.2118/89424-PA.
Zhang, D., Liu, S., Puerto, M. et al. 2006. Wettability Alteration and Spontaneous Imbibition in Oil-Wet Carbonate Formations. J. Pet. Sci. Eng. 52 (1–4): 213–226. http://dx.doi.org/10.1016/j.petrol.2006.03.009.