Low-Salinity Water, CO2, Alkaline, and Surfactant EOR Methods Applied to Heavy Oil in Sandstone Cores
- Hasan N. Al-Saedi (Missouri University of Science and Technology/Missan Oil Company) | Ralph E. Flori (Missouri University of Science and Technology) | Soura K. Al-Jaberi (Missan Oil Company) | Waleed Al-Bazzaz (Kuwait Institute for Scientific Research)
- Document ID
- Society of Petroleum Engineers
- SPE Journal
- Publication Date
- April 2020
- Document Type
- Journal Paper
- 2020.Society of Petroleum Engineers
- heavy oil recovery, sandstone reservoirs, alkaline flooding, low salinity water flooding, foam flooding
- 14 in the last 30 days
- 52 since 2007
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Generally, injecting carbon dioxide (CO2) into oil reservoirs is an effective enhanced oil recovery (EOR) technique that improves oil recovery, but injecting CO2 alone can be compromised by problems, such as early breakthrough, viscous fingering, and gravity override. The base CO2 injection method was improved by water-alternating-gas (WAG) injection with formation water (FW) and with low-salinity (LS) water (LSW), with LSW WAG achieving greater recovery than WAG with FW.
This study investigates various combinations of standard waterflooding (with FW); flooding with nonmiscible gaseous CO2; WAG with CO2 and FW and/or LSW; foam flooding by adding a surfactant with CO2; adding an alkaline treatment step; and finally adding an LSW spacer between the alkaline step and the foam. These various EOR combinations were tested on Bartlesville sandstone cores (ϕ of approximately 12%, K of approximately 20 md) saturated with a heavy oil diluted slightly with 10% heptane for workability. The ultimate outcome from this work is a “recipe” of EOR methods in combination that uses alkaline, LSW, surfactant, and CO2 steps to achieve recovery of more than 63% of the oil originally in place (OOIP) in coreflooding tests.
Combining CO2 injection with surfactant [sodium dodecyl sulfonate (SDS)] to produce a foam resulted in better recovery than the WAG methods. Adding alkaline as a leading step appeared to precipitate the surfactant and lower recovery somewhat. Adding an LSW spacer between the alkaline treatment and the foam resulted in a dramatic increase in recovery. The various cases of alkaline + LSW spacer + surfactant + CO2 (each with various concentrations of alkaline and surfactant) achieved an average improvement of 7.71% of OOIP over the identical case(s) without the LSW spacer. The synergistic effect of the LSW spacer was remarkable.
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Abdulla, F., Hashem, H., Abdulraheem, B. et al. 2013. First EOR Trial Using Low Salinity Water Injection in the Greater Burgan Field, Kuwait. Paper presented at the SPE Middle East Oil and Gas Show and Conference, Manama,
Bahrain, 10–13 March. SPE-164341-MS. https://doi.org/10.2118/164341-MS.
Al-adasani, A., Bai, B., and Wu, Y. 2012. Investigating Low Salinity Waterflooding Recovery Mechanisms in Carbonate Reservoirs. Paper presented at the SPE EOR Conference at Oil and Gas West Asia, Muscat, Oman, 16–18 April. SPE-1555560-MS. https://doi.org/10.2118/155560-MS.
Alhammadi, M. P., Mahzari, P., and Sohrabi, M. 2017. Experimental Investigation of the Underlying Mechanism behind Improved Oil Recovery by Low Salinity Water Injection in Carbonate Reservoir Rocks. Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, UAE, 13–16 November. SPE-188352-MS. https://doi.org/10.2118/188352-MS.
Alotaibi, M. B., Azmy, R., and Nasr-El-Din, H. A. 2010. A Comprehensive EOR Study Using Low Salinity Water in Sandstone Reservoirs. Paper presented at the SPE Improved Oil Recovery Symposium, Tulsa, Oklahoma, USA, 24–28 April. SPE-129976-MS. https://doi.org/10.2118/129976-MS.
Al-Saedi, H. N., Al-Bazzaz, W., and Flori, R. E. 2019a. Is Steamflooding a Form of Low Salinity Waterflooding? Paper presented at the SPE Middle East Oil and Gas Show and Conference, Manama, Bahrain, 18–21 March. SPE-194820-MS. https://doi.org/10.2118/194820-MS.
Al-Saedi, H. N., Alhuraishawy, A. K., Flori, R. et al. 2018. Sequential Injection Mode of High-Salinity/Low-Salinity Water in Sandstone Reservoirs: Oil Recovery and Surface Reactivity Tests. J Pet Explor Prod Technol 9 (1): 261–270. https://doi.org/10.1007/s13202-018-0466-z.
Al-Saedi, H. N. and Flori, R. E. 2019. CO2 Sequestration/EOR in Bartlesville Sandstone Reservoir Bearing Heavy Oil. Paper presented at the 53rd US Rock Mechanics/Geomechanics Symposium, New York City, New York, USA, 23–26 June. ARMA-2019-0514.
Al-Saedi, H. N., Flori, R. E., and Al-Bazzaz, W. 2019b. Low Salinity and Immiscible CO2 Combined Flooding for Sandstone Reservoirs: Low Salinity-Alternating-CO2 Flooding (LS-CO2 WAG). Paper presented at the EAGE 20th European Symposium on Improved Oil Recovery, Pau, France, 8–11 April. https://doi.org/10.3997/2214-4609.201900087.
Al-Saedi, H. N., Flori, R. E., and Brady, P. V. 2019c. Effect of Divalent Cations in Formation Water on Wettability Alteration During Low Salinity Water Flooding in Sandstone Reservoirs: Oil Recovery Analyses, Surface Reactivity Tests, Contact Angle, and Spontaneous Imbibition Experiments. J Mol Liq 275: 163–172. https://doi.org/10.1016/j.molliq.2018.11.093.
Alvarado, V. and Manrique, E. 2010. Enhanced Oil Recovery: An Update Review. Energies 3 (9): 1529–1575. https://doi.org/10.3390/en3091529.
Apaydin, O. G. and Kovscek, A. R. 2000. Transient Foam Flow in Homogeneous Porous Media: Surfactant Concentration and Capillary End Effects. Paper presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, USA, 3–5 April. SPE-59286-MS. https://doi.org/10.2118/59286-MS.
Arkinson, H. 1927. Recovery of Petroleum from Oil-Bearing Sands. US Patent No. 1651311A.
Bartels, W., Mahani, H., Berg, S. et al. 2019. Literature Review of Low Salinity Waterflooding from a Length and Time Scale Perspective. Fuel 236: 338–353. https://doi.org/10.1016/j.fuel.2018.09.018.
Bataweel, M. A. and Nasr-El-Din, H. A. 2011. Alternatives to Minimize Scale Precipitation in Carbonate Cores Caused by Alkalis in ASP Flooding in High Salinity/High Temperature Applications. Paper presented at the SPE European Formation Damage Conference, Noordwijk, The Netherlands, 7–10 June. SPE-143155-MS. https://doi.org/10.2118/143155-MS.
Beckstrom, R. C. and Van Tuyl, F. M. 1927. The Effect of Flooding Oil Sands with Alkaline Solutions. AAPG Bull 11 (3): 223–235. https://doi.org/10.1306/3d932778-16b1-11d7-8645000102c1865d.
Chequer, L., Al-Shuaili, K., Genolet, L. et al. 2019. Optimal Slug Size for Enhanced Recovery by Low-Salinity Waterflooding Due to Fines Migration. J Pet Sci Eng 177: 766–785. https://doi.org/10.1016/j.petrol.2019.02.079.
Chevallier, E., Chabert, M., Gautier, S. et al. 2018. Design of a Combined Foam EOR Process for a Naturally Fractured Reservoir. Paper Presented at the SPE EOR Conference at Oil and Gas West Asia, Muscat, Oman, 26–28 March. SPE-190363-MS. https://doi.org/10.2118/190363-MS.
Denney, D. 2010. Systematic Study of Alkaline/Surfactant/Gas Injection for EOR. J Pet Technol 62 (1): 42–43. SPE-0110-0042-JPT. https://doi.org/10.2118/0110-0042-JPT.
Denney, D. 2013. Foam-EOR Pilot: Mature Volatile-Oil Reservoir under Miscible-Gas Injection. J Pet Technol 65 (6): 117–119. SPE-0613-0117-JPT. https://doi.org/10.2118/0613-0117-JPT.
Dugstad, O., Opel, K., and Fjelde, I. 2011. Improved Understanding of CO2/Foam EOR Techniques by Aid of Tracer Technology. Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, Vienna, Austria, 23–26 May. SPE-142985-MS. https://doi.org/10.2118/142985-MS.
Ehrlich, R., Hasiba, H., and Raimondi, P. 1974. Alkaline Waterflooding for Wettability Alteration-Evaluating a Potential Field Application. J Pet Technol 26 (12): 1335–1343. SPE-4905-PA. https://doi.org/10.2118/4905-PA.
Erke, S. I., Volokitin, Y. E., Edelman, I. Y. et al. 2016. Low Salinity Flooding Trial at West Salym Field. Paper presented at the SPE Improved Oil Recovery Conference, Tulsa, Oklahoma, USA, 11–13 April. SPE-179629-MS. https://doi.org/10.2118/179629-MS.
Gao, Y., Zhao, M., Wang, J. et al. 2014. Performance and Gas Breakthrough during CO2 Immiscible Flooding in Ultra-Low Permeability Reservoirs. Pet Explor Dev 41 (1): 88–95. https://doi.org/10.1016/s1876-3804(14)60010-0.
Guo, H., Zitha, P. L. J., Faber, R. et al. 2012. A Novel Alkaline/Surfactant/Foam Enhanced Oil Recovery Process. SPE J. 17 (4): 1186–1195. SPE-145043-PA. https://doi.org/10.2118/145043-PA.
Hirasaki, G., Miller, C. A., and Puerto, M. 2008. Recent Advances in Surfactant EOR. Paper presented at the SPE Annual Technical Conference and Exhibition, Denver, Colorado, USA, 21–24 September. SPE-115386-MS. https://doi.org/10.2118/115386-MS.
Ibrahim, Z. B., Manap, A. A., Hamid, P. A. et al. 2006. Laboratory Aspect of Chemical EOR Processes Evaluation for Malaysian Oilfields. Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, Adelaide, Australia, 11–13 September. SPE-100943-MS. https://doi.org/10.2118/100943-MS.
Kakati, A., Jha, N. K., Kumar, G. et al. 2017. Application of Low Salinity Water Flooding for Light Paraffinic Crude Oil Reservoir. Paper presented at the SPE Symposium: Production Enhancement and Cost Optimisation, Kuala Lumpur, Malaysia, 7–8 November. SPE-189249-MS. https://doi.org/10.2118/189249-MS.
Kazempour, M., Sundstrom, E. A., and Alvarado, V. 2012. Effect of Alkalinity on Oil Recovery During Polymer Floods in Sandstone. SPE Res Eval & Eng 15 (2): 195–209. SPE-141331-PA. https://doi.org/10.2118/141331-PA.
Kibodeaux, K. R. and Rossen, W. R. 1997. Coreflood Study of Surfactant-Alternating-Gas Foam Processes: Implications for Field Design. Paper presented at the SPE Western Regional Meeting, Long Beach, California, USA, 25–27 June. SPE-38318-MS. https://doi.org/10.2118/38318-MS.
Lager, A., Webb, K. J., Black, C. J. J. et al. 2008. Low Salinity Oil Recovery—An Experimental Investigation. Petrophysics 49 (1): 28–35. SPWLA-2008-v49n1a2.
Lake, L. W. 1989. Enhanced Oil Recovery. Englewood Cliffs, New Jersey, USA: Prentice-Hall.
Lee, S. and Kam, S. I. 2015. MoC-Based Modeling and Simulation of Foam EOR Processes in Multi-Layered System. Paper presented at the Offshore Technology Conference, Houston, Texas, USA, 4–7 May. OTC-25716-MS. https://doi.org/10.4043/25716-MS.
Mahani, H., Sorop, T., Ligthelm, D. J. et al. 2011. Analysis of Field Responses to Low-Salinity Waterflooding in Secondary and Tertiary Mode in Syria. Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, Vienna, Austria, 23–26 May. SPE-142960-MS. https://doi.org/10.2118/142960-MS.
Mast, R. F. 1972. Microscopic Behavior of Foam in Porous Media. Paper presented at the Fall Meeting of the Society of Petroleum Engineers of AIME, San Antonio, Texas, USA, 8–11 October. SPE-3997-MS. https://doi.org/10.2118/3997-MS.
Nasralla, R. A., Bataweel, M. A., and Nasr-El-Din, H. A. 2013. Investigation of Wettability Alteration and Oil-Recovery Improvement by Low-Salinity Water in Sandstone Rock. J Can Pet Technol 52 (2): 144–154. SPE-146322-PA. https://doi.org/10.2118/146322-PA.
Nell, M. 2015. Oil Foam Interaction: Simulation of Foam Displacement with Oil. Master’s thesis, Delft University of Technology, Delft, The Netherlands. http://resolver.tudelft.nl/uuid:c0c5d125-42a9-41df-8393-073dc4ba57bd.
Newton, L. E. and McClay, R. A. 1977. Corrosion and Operational Problems, CO2 Project, Sacroc Unit. Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, Midland, Texas, USA, 10–11 March. SPE-6391-MS. https://doi.org/10.2118/6391-MS.
Ocampo, A., Restrepo, A., Cifuentes, H. et al. 2013. Successful Foam EOR Pilot in a Mature Volatile Oil Reservoir under Miscible Gas Injection. Paper presented at the International Petroleum Technology Conference, Beijing, China, 26–28 March. IPTC-16984-MS. https://doi.org/10.2523/IPTC-16984-MS.
Olajire, A. A. 2014. Review of ASP EOR (Alkaline Surfactant Polymer Enhanced Oil Recovery) Technology in the Petroleum Industry: Prospects and Challenges. Energy 77: 963–982. https://doi.org/10.1016/j.energy.2014.09.005.
Panda, M., Nottingham, D., and Lenig, D. 2011. Systematic Surveillance Techniques for a Large Miscible WAG Flood. SPE Res Eval & Eng 14 (3): 299–309. SPE-127563-PA. https://doi.org/10.2118/127563-PA.
Pei, H., Zhang, G., Ge, J. et al. 2012. A Comparative Study of Alkaline Flooding and Alkaline/Surfactant Flooding for Zhuangxi Heavy Oil. Paper presented at the SPE Heavy Oil Conference Canada, Calgary, Alberta, Canada, 12–14 June. SPE-146852-MS. https://doi.org/10.2118/146852-MS.
Prud’homme, R. K. 1995. Foams: Theory: Measurements: Applications. Boca Raton, Florida, USA: CRC Press.
Rezaeidoust, A., Puntervold, T., and Austad, T. 2010. A Discussion of the Low-Salinity EOR Potential for a North Sea Sandstone Field. Paper presented at the SPE Annual Technical Conference and Exhibition, Florence, Italy, 19–22 September. SPE-134459-MS. https://doi.org/10.2118/134459-MS.
Robertson, E. P. 2007. Low-Salinity Waterflooding to Improve Oil Recovery-Historical Field Evidence. Paper presented at the SPE Annual Technical Conference and Exhibition, Anaheim, California, USA, 11–14 November. SPE-109965-MS. https://doi.org/10.2118/109965-MS.
Rossen, W. R. 1995. Foams in Enhanced Oil Recovery. In Foams, Theory: Measurements and Applications, ed. R. K. Prud’homme and S. A. Khan, p. 413. New York City, New York, USA: Marcel Dekker.
Schramm, L. L. 2010. Surfactants: Fundamentals and Applications in the Petroleum Industry. Cambridge, England, UK: Cambridge University Press.
Selby, R., Alikhan, A., and Ali, S. F. 1989. Potential of Non-Thermal Methods for Heavy Oil Recovery. J Can Pet Technol 28 (4): 45–59. PETSOC-89-04-02. https://doi.org/10.2118/89-04-02.
Shabib-Asl, A., Ayoub, M. A., and Elraies, K. A. 2019. A New Hybrid Technique Using Low Salinity Water Injection and Foam Flooding for Enhanced Oil Recovery in Sandstone Rock. J Pet Sci Eng 174: 716–728. https://doi.org/10.1016/j.petrol.2018.11.035.
Sheng, J. 2013. Enhanced Oil Recovery Field Case Studies. Houston, Texas, USA: Gulf Professional Publishing.
Sheng, J. 2014a. Critical Review of Low-Salinity Waterflooding. J Pet Sci Eng 120: 216–224. https://doi.org/10.1016/j.petrol.2014.05.026.
Sheng, J. J. 2014b. A Comprehensive Review of Alkaline-Surfactant-Polymer (ASP) Flooding. Asia Pac J Chem Eng 9 (4): 471–489. https://doi.org/10.1002/apj.1824.
Skauge, A., Aarra, M. G., Surguchev, L. et al. 2002. Foam-Assisted WAG: Experience from the Snorre Field. Paper presented at the SPE-DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, USA, 13–17 April. SPE-75157-MS. https://doi.org/10.2118/75157-MS.
Srivastava, M., Zhang, J., Nguyen, Q. P. et al. 2009. A Systematic Study of Alkali Surfactant Gas Injection as an Enhanced Oil Recovery Technique. Paper presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, USA, 4–7 October. SPE-124752-MS. https://doi.org/10.2118/124752-MS.
Svorstol, I., Vassenden, F., and Mannhardt, K. 1996. Laboratory Studies for Design of a Foam Pilot in the Snorre Field. Paper presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, USA, 21–24 April. SPE-35400-MS. https://doi.org/10.2118/35400-MS.
Sydansk, R. D. 1982. Elevated-Temperature Caustic/Sandstone Interaction: Implications for Improving Oil Recovery (Includes Associated Papers 11348 and 11548). Society of Petoleum Engineers Journal 22 (4): 453–462. SPE-9810-PA. https://doi.org/10.2118/9810-PA.
Tang, G. and Morrow, N. R. 1999. Influence of Brine Composition and Fines Migration on Crude Oil/Brine/Rock Interactions and Oil Recovery. J Pet Sci Eng 24 (2–4): 99–111. https://doi.org/10.1016/S0920-4105(99)00034-0.
Vledder, P., Gonzalez, I. E., Carrera Fonseca, J. C. et al. 2010. Low Salinity Water Flooding: Proof of Wettability Alteration on a Field Wide Scale. Paper presented at the SPE Improved Oil Recovery Symposium, Tulsa, Oklahoma, USA, 24–28 April. SPE-129564-MS. https://doi.org/10.2118/129564-MS.
Wang, B., Wu, T., Li, Y. et al. 2011. The Effects of Oil Displacement Agents on the Stability of Water Produced from ASP (Alkaline/Surfactant/Polymer) Flooding. Colloids Surf A 379 (1–3): 121–126. https://doi.org/10.1016/j.colsurfa.2010.11.064.
Webb, K., Black, C., and Al-Ajeel, H. 2003. Low Salinity Oil Recovery—Log-Inject-Log. Paper presented at the Middle East Oil Show, Manama, Bahrain, 9–12 June. SPE-81460-MS. https://doi.org/10.2118/81460-MS.
Yang, P. J., Li, Z., Xia, B. et al. 2019. Comprehensive Review of Alkaline–Surfactant–Polymer (ASP)-Enhanced Oil Recovery (EOR). In Proceeding of the International Field Exploration and Developments Conference 2017, ed. Z. Qu and J. Lin, 858–872. Singapore: Springer Series in Geomechanics and Geoengineering, Springer.
Zhang, K. and Qin, J. S. 2011. The Effect of Alkali and Surfactant on Polymer Molecular Structure. Pet Sci Technol 29 (2): 183–191. https://doi.org/10.1080/10916460902839214.
Zhang, Y., Wang, Y., Xue, F. et al. 2015. CO2 Foam Flooding for Improved Oil Recovery: Reservoir Simulation Models and Influencing Factors. J Pet Sci Eng 133: 838–850. https://doi.org/10.1016/j.petrol.2015.04.003.