The Chemical Enhanced Oil Recovery




Chemical enhanced oil recovery, Polymer Flooding, Surfactant Flooding, Alkaline Flooding, Smart Water Flooding, Wettability, Interfacial tension


Enhanced Oil Recovery (EOR) techniques are currently one of the top priorities of technological development in the oil industry owing to the increasing demand for oil and gas, which cannot be fulfilled by primary or secondary production methods. The main function of the enhanced oil recovery process is to displace oil in the production wells by the injection of different fluids to supplement the natural energy present in the reservoir. moreover these injecting fluids can alter the reservoir`s properties; for example they can lower the interfacial tension (IFT) between oil and water, alter the rocks` wettability, change the pH value, form emulsions aid in clay migration and reduce the oil viscosity. In this chapter, we will discuss the following methods of chemical enhanced oil recovery: polymer flooding, surfactant flooding, alkaline flooding and smart water flooding. In addition, we will review the merits and demerits of each method and conclude the chapter with our recommendations


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A. S. Hamoud, Enhanced oil recovery in carbonate reserviors, Hims: Al Baath Univerity, 1995.

T. Nasour, Reservior and prodution engneeering, Hims: Al Baath Universiy, 1991.

A. Mandal, "Chemical flood enhanced oil recovery: A review," International Journal of Oil Gas and Coal Technology, vol. 9, no. 3, p. 249, 2015. DOI:

G. Zerkalov, "Polymer Flooding for Enhanced Oil Recovery," Stanford University, Califorina, 2015.

T. P. a. W. N. A. Z. Abidin, "Polymers For Enhanced Oil Recovery Technology," Procedia Chemistry, vol. 4, no. 11, p. 9, 2012. DOI:

A. A. Olajire, "Review of ASP EOR (alkaline surfactant polymer enhanced oilrecovery) technology in the petroleum industry: Prospects andchallenges," Energy, vol. 77, no. 1, pp. 7-8, 2014. DOI:

K. Sorbie, Polymer-Improved Oil Recovery, New York: Springr Science+Business Media, 1991. DOI:

C. L. Sarah E.Morgan, "Water-soluble polymers in enhanced oil recovery," Progress in Polymer Science, vol. 15, no. 1, pp. 103-145, 1990. DOI:

SLB, "Oilfield Glossary," Schlumberger, 12 2 2017. [Online]. Available: [Accessed 28 7 2019].

R. L. Davidson, Handbook of Water-soluble Gums and Resins., McGraw-Hill Book Company, 1980.

J. T. K. Milton J. Rosen, Surfactants and Interfacial Phenomena, New Jercy: Jhon Wiley and Sons Inc, 2017.

E. P. A. A. E. a. Z. A. Shchukin, Colloid and Surface Chemistry, Elsevier Science, 2001.

R. F. H. Ralf Vanselow, Chemistry and Physics of Solid Surfaces VII, Berlin: Springer, 2012.

W. R. Schowalter, Mechanics of Non-Newtonian Fluids, Oxford: Pergamon press, 1978.

J. F. Steffe, Rheological Methods in Food Process Engineering, East Lansing: Freeman Press, 1996.

H. J. Reich, "Bordwell pKa Table (Acidity in DMSO)," University of Wisconsin., Wisconsin, 2012.

A. O. K. M. A. a. K. T. (. ‘. Bera, "Interfacial tension and phase behavior of surfactant-brine-oil system," Colloids and Surfaces A Physicochemical and Engineering Aspects, vol. 383, no. 1-3, p. 114, 2011. DOI:

H. R. H. a. S. G. Hill, "Aqueous surfactant system for oil recovery," Journal of Petroleum Technology, vol. 25, no. 02, pp. 1-10, 1973. DOI:

A. D. R. H. H. M. R. v. P. a. S. W. Michels, "Enhanced waterflooding design with dilute surfactant concentrations for North Sea," Society of Petroleum Engineers, vol. 11, no. 03, p. 10, 1996. DOI:

R. Crain, "Crain's Petrophysical Handbook," 01 08 2019. [Online]. Available: [Accessed 01 08 2019].

W. G. Anderson, "Wettability literature survey—Part," Journal of Petroleum Technology, vol. 38, no. 10, pp. 1125-1144, 1986. DOI:

Thomas, "Enhanced Oil Recovery – An Overview," Oil & Gas Science and Technology, vol. 63, no. 1, pp. 9-19, 2008. DOI:

B. R. C. J. W. R. Mayer E.H., "Alkaline Injection for Enhanced Oil Recovery," J. Petrol. Technol 209-221, 1983. DOI:

J. J. S. P. D, "Alkaline Flooding," in Modern Chemical Enhanced Oil Recovery- Theory and Practice, Gulf Professional Publishing is an imprint of Elsevier, 2011, pp. 389-460. DOI:

C. J. Jr., "Status of Caustic and Emulsion Methods," Journal of Petroleum Technology, vol. 28, no. 01, pp. 1-8, 1976. DOI:

J. L. G. B. S. a.-S. T. A.-Z. R. A.-Z. H. A.-T. N. A.-M. Ali A Yousef, "Smart Water Flooding: Industry`s first field test in carbonate reserviors," in SPE annual technica conference and exhaibition, San Antonio, Texa, USA, 2012.

H. a.-H. p. G. V.-N. N. M. Mahmood Fani, "Optimization of smart water flooding in carbonate reservoir," in Abu Dhabi international petroleum exhibition and conference, Abu Dhabi, UAE, 2018.




How to Cite

Lwisa, E. G. (2021). The Chemical Enhanced Oil Recovery. International Journal for Innovation Education and Research, 9(6), 160–172.