The associative polymer flooding: an experimental study

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Аннотация

This study investigates the sandpack displacement of low viscosity oil (1.68 cP) by brine and aqueous solutions of associative polymers. Polymer fooding has been thoroughly investigated in many laboratory and feld tests. Polymer fooding is one of the most widely used enhanced oil recovery (EOR) methods. The method of polymer fooding is not used for development of oil felds with gas caps, fractured reservoirs, high permeability and active bottom-water drive. In the application of polymer fooding, coefcient of oil recovery is increased by 3–10%. Hydrolyzed polymers undergo the signifcant thermal and chemical degradation at high temperature and salinity. In recent years, researchers have turned their attention to associative polymers. An application of associative polymers to withstand degradation in high temperature and high salinity conditions can enhance oil recovery in high heterogeneous felds. This article presents the results of studies of oil displacement by associative polymers in a two-layer core model. In laboratory studies, the core selected from a sandy reservoir of the South Turgay Basin of the Republic of Kazakhstan was used. Solutions of the following polymers were studied: hydrolyzed polyacrylamide (HPAM) and associative polymer. The physicochemical conditions of the experiments corresponded to the reservoir conditions of the sand layer of the South Turgay Basin: temperature of 82 oC and the salinity of the brine 92,000 ppm. Experiments revealed that the associative polymer is more stable in simulated reservoir conditions than the HPAM polymer. Associative polymer fooding was recommended for pilot testing at the reservoir of the South Turgay Basin.
Conclusion. Based upon the conducted experiments, the following conclusions are drawn: 1. Associative polymer can be efective even in not very high temperature (82 oC) and high salinity (92,000 ppm). 2. Pre-fush slug’s viscosity should be considered prior the experiments. In our case, it has not worked; however, above consideration should be tested. 3. In the conditions of modeled feld 82 oC and 92,000 ppm associative polymer can raise the oil recovery for the 6.52% than waterfooding and for the 1.67% above the partially hydrolyzed polyacrylamide.
Keywords: Associative polymer fooding, enhanced oil recovery, EOR, core fooding,  polymer fooding

Reference

1. Akbari S, Mahmood SM, Tan IM et al (2017) Experimental investigation of the efect of diferent process variables on the viscosity of sulfonated polyacrylamide copolymers. J Pet Explor Prod Technol. https://doi.org/10.1007/s13202-016-0244-8
2. Aktas F, Clemens T, Castanier L, Kovscek AR (2008) Viscous oil displacement via aqueous associative polymers. Paper SPE 113264 presented at the SPE/DOE symposium on improved oil recovery, Tulsa, OK, 12–23 April. https://doi.org/10.2118/113264-MS. https://search.crossref.org/?q=10.2118%2F113264-MS. https ://scholar.google.ru/scholar?hl=ru&as_sdt=0%2C5&q=Visco us+Oil+Displacement+via+Aqueous+Associative+Polym ers&btnG=
3. Alexis D, Varadarajan D, Kim DH, Winslow G, Malik T (2016) Evaluation of innovative associative polymers for low concentration polymer fooding. Society of Petroleum Engineers. https://doi.org/10.2118/179696-MS. https://search.crossref. org/?q=10.2118%2F179696-MS. https://scholar.google.ru/schol ar?hl=ru&as_sdt=0%2C5&q=Evaluation+of+Innovative+Assoc iative+Polymers+for+Low+Concentration+Polymer+Flood ing&btnG=
4. Al-Taq AA, Nasr-El-Din HA, Lajami R et al (2007) Efective acid diversion and water control in carbonate reservoirs using an associative polymer treatment: case histories from Saudi Arabia. Presented at the SPE annual technical conference and exhibition, Anaheim, California, 11–14 November. SPE-109714-MS. https://doi.org/10.2118/109714-MS. https://search.crossref. org/?q=10.2118%2F109714-MS. https://scholar.google.ru/ scholar?hl=ru&as_sdt=0%2C5&q=Effective+Acid+Diver sion+and+Water+Control+in+Carbonate+Reservoirs+Using +an+Associative+Polymer+Treatment%3A+Case+Histo ries+From+Saudi+Arabia.&btnG=
5. Azad MS, Trivedi JJ (2017) Injectivity behavior of copolymer and associative polymers decoded using extensional viscosity characterization: efect of hydrophobic association. Society of Petroleum Engineers. https://doi.org/10.2118/185668-MS. https://searc h.crossref.org/?q=10.2118%2F185668-MS. https://scholar.googl e.ru/scholar?hl=ru&as_sdt=0%2C5&q=Injectivity+Behav ior+of+Copolymer+and+Assoc iative+Polymers+Decod ed+Using+Extensional+Viscosity+Characterization%3A+Efec t+of+Hydrophobic+Association.&btnG=
6. Basnieva IK, Zolotukhin AB, Eremin NA, Udovina EF (1994) Comparative analysis of successful application of EOR in Russia and CIS. Society of Petroleum Engineers. https://doi.org/10.2118/28002 -MS. https://search.crossref.org/?q=10.2118%2F28002-MS. https://schol ar.googl e.com/citations?user=u1otxykAAA AJ#d=gs_md_cita-d&u=%2Fcitations%3Fview_op%3Dvie w_citation%26hl%3Dru%26user%3Du1otxykAAAAJ%26cst art%3D100%26pagesize%3D100%26citation_for_view%3Du1o txykAAAAJ%3Au-x6o8ySG0sC%26tzom%3D-180. https://www. researchgate.net/publication/254501874_Comparative_Analysis_ of_Successful_Application_of_EOR_in_Russia_and_CIS
7. Cheraghian G, Khalili Nezhad SS, Kamari M et al (2015) Efect of nanoclay on improved rheology properties of polyacrylamide solutions used in enhanced oil recovery. J Pet Explor Prod Technol. https://doi.org/10.1007/s13202-014-0125-y Delamaide E (2018)
8. Polymers and their limits in temperature, salinity and hardness: theory and practice. Society of Petroleum Engineers. https://doi.org/10.2118/192110-MS. https ://search.crossref.org/?q=10.2118%2F192110-MS. https://scholar.google.ru/scholar?hl=ru&as_sdt=0%2C5&q=Polym ers+and+Their +Limits+in+Tempe ratur e%2C+Salin ity+and+Hardness%3A+Theory+and+Practice&btnG=
9. Denney D (2012) Rheology of a new sulfonic associative polymer in porous media. Society of Petroleum Engineers. https ://doi.org/10.2118/0112-0067-JPT. https://search.cross ref.org/?q=10.2118%2F011 2-0067-JPT. https://schol ar.googl e.ru/schol ar?hl=ru&as_sdt=0%2C5&q=Rheol ogy+of+a+New+Sulfonic+Associative+Polymer+in+Porou s+Media&btnG=
10. Doe PH, Moradi-Araghi A, Shaw JE, Stahl GA (1987) Development and evaluation of EOR polymers suitable for hostile environments part 1: copolymers of vinylpyrrolidone and acrylamide. Society of Petroleum Engineers. https://doi.org/10.2118/14233 -PA. https://search.crossref.org/?q=10.2118%2F14233-PA. https://scholar.google.ru/scholar?hl=ru&as_sdt=0,5&q=Devel opmen t+and+Evalu ation +of+EOR+Polym ers+Suita ble+for+Hosti le+Envir onmen ts+Part+1%3A+Copol ymer+of+Vinylpyrrolidone+and+Acrylamide
11. Dupuis G, Tabary R, Grassl B (2010) How to get the best out of hydrophobically associative polymers for IOR? New experimental insights. Society of Petroleum Engineers. https://doi.org/10.2118/129884-MS. https://search.cross ref.org/?q=10.2118%2F129884-MS. https://scholar.googl e.ru/schol ar?hl=ru&as_sdt=0%2C5&q=How+to+Get+t he+Best+Out+of+Hydrophobically+Associative+Polym ers+for+IOR%3F+New+Experimental+Insights.&btnG=
12. Eremin NA, Nazarova LA (2001) Enhanced oil recovery methods (Edited by prof. Igor T. Mischenko). Gubkin Russian State University of Oil and Gas, Moscow. https://www.researchga te.net/publication/297392172_Enhanced_Oil_Recovery_Metho ds. https://istina.msu.ru/publications/book/20226897/. http:// ipng.ru/uf/EreminNA_NazarovaLN_Enhanced_Oil_Recov ery_Methods.pdf
13. Gogoi S, Gogoi SB (2019) Review on microfuidic studies for EOR application. J Pet Explor Prod Technol. https://doi.org/10.1007/ s13202-019-0610-4
14. Guo Y, Zhang J, Zhang X, Hu J, Wang W, Liang Y (2018) Investigation and application of an associative polymer-surfactant binary system for a successful fooding pilot in a high-temperature, high-salinity, ordinary heavy oil reservoir. Society of Petroleum Engineers. https://doi.org/10.2118/190411-MS. https:// search.crossref.org/?q=10.2118%2F190411-MS. https://schol ar.google.ru/scholar?hl=ru&as_sdt=0%2C5&q=Investigat ion+and+Application+of+an+Associative+Polymer-Surfa ctant+Binary+System+for+a+Successful+Flooding+Pilot +in+a+High-Temperature%2C+High-Salinity%2C+Ordin ary+Heavy+Oil+Reservoir.&btnG=
14. Han X, Zhang G, Yu J, Chen Z, Kurnia I (2018) An investigation of retention and unusually high apparent viscosity of hydrophobically associative polymer in porous media. Society of Petroleum Engineers. https://doi.org/10.2118/190330-MS. https:// search.crossref.org/?q=10.2118%2F190330-MS. https://schol ar.google.ru/scholar?hl=ru&as_sdt=0%2C5&q=An+Investigat ion+of+Retention+and+Unusually+High+Apparent+Visco sity+of+Hydrophobically+Associative+Polymer+in+Porou s+Media&btnG=
15. Lake LW (1996) Enhanced oil recovery. Prentice Hall, Englewood Clifs
16. Leblanc T, Braun O, Thomas A, Divers T, Gaillard N, Favero C (2015) Rheological properties of stimuli-responsive polymers in solution to improve the salinity and temperature performances of polymer-based chemical enhanced oil recovery technologies. Society of Petroleum Engineers. https ://doi.org/10.2118/17461 8-MS. https://search.crossref. org/?q=10.2118%2F174618-MS. https://scholar.google.ru/ scholar?hl=ru&as_sdt=0%2C5&q=Rheological+Properties +of+Stimuli-Responsive+Polymers+in+Solution+to+Impro ve+the+Salinity+and+Temperature+Performances+of+Polym er-Based+Chemical+Enhanced+Oil+Recovery+Technologi es&btnG= 17. Levitt D, Pope GA (2008) Selection and screening of polymers for enhanced-oil recovery. Society of Petroleum Engineers. https://doi.org/10.2118/113845-MS. https://search.crossref. org/?q=10.2118%2F113845-MS. https://scholar.google.ru/ scholar?hl=ru&as_sdt=0%2C5&q=Selection+and+Scree ning+of+Polymers+for+Enhanced-Oil+Recovery&btnG=
18. Lv Y, Feng Y, Wang Z, Li A, Zhang Q, Huang B, Zuo J, Ren Z, Chen Y (2017) Hydrophobically associating polymer water-inoil emulsions used in multi-pad fracking for tight oil reservoir: the frst example in China. Society of Petroleum Engineers. https://doi.org/10.2118/184577-MS. https://search.crossref. org/?q=10.2118%2F184577-MS. https://scholar.google.ru/ scholar?hl=ru&as_sdt=0%2C5&q=Hydrophobically+Assoc iating+Polymer+Water-in-Oil+Emulsions+Used+in+Multi -pad+Fracking+for+Tight+Oil+Reservoir%3A+The+First +Example+in+China&btnG=
19. Moradi-Araghi A, Cleveland DH, Westerman IJ (1987) Development and evaluation of EOR polymers suitable for hostile environments: II-copolymers of acrylamide and sodium AMPS. Society of Petroleum Engineers. https://doi.org/10.2118/16273-MS. https://search.crossref.org/?q=10.2118%2F16273-MS. https:// scholar.google.ru/scholar?hl=ru&as_sdt=0%2C5&q=Devel opmen t+and+Evalu ation +of+EOR+Polym ers+Suita ble+for+Hosti le+Envir onmen ts%3A+II-Copol ymers +of+Acrylamide+and+Sodium+AMPS&btnG=
20. Nunez Garcia W, Leal Jauregui JA, Malik AR, Al-Abdulmohsin YA, Izquierdo GA, Al-Mumen M (2010) Achieving successful diversion in acid stimulation treatments: case study of excellent results achieved using APT (associative polymer treatment) in highly heterogeneous carbonate reservoirs in Saudi Arabia. Society of Petroleum Engineers. https ://doi.org/10.2118/12595 5-MS. https://search.crossref. org/?q=10.2118%2F125955-MS. https://scholar.google.ru/schol ar?hl=ru&as_sdt=0%2C5&q=Achieving+Successful+Diver sion+in+Acid+Stimulation+Treatments%3A+Case+Study +of+Excellent+Results+Achieved+Using+APT+%28Ass ociative+Polymer+Treatment%29+in+Highly+Heterogene ous+Carbonate+Reservoirs+in+Saudi+Arabia&btnG=
21. Reichenbach-Klinke R, Stavland A, Strand D (2016) Can associative polymers reduce the residual oil saturation? Presented at the SPE EOR conference at oil and gas, West Asia, Muscat, 21–23 March. SPE 179801-MS. http://dx.doi.org/10.2118/17980 1-MS. https://searc h.crossref.org/?q=10.2118%2F179 801-MS. https://schol ar.googl e.ru/schol ar?hl=ru&as_ sdt=0%2C5&q=Can+Assoc iativ e+Polym ers+Reduc e+the+Residual+Oil+Saturation%3F&btnG=
22. Skauge T, Djurhuus K, Reichenbach-Klinke R (2018) Visualization of heavy oil mobilization by associative polymer. Society of Petroleum Engineers. https://doi.org/10.2118/190770-MS. https://searc h.crossref.org/?q=10.2118%2F190770-MS. https://scholar.googl e.ru/scholar?hl=ru&as_sdt=0%2C5&q=Visualization+of+Heavy +Oil+Mobilization+by+Associative+Polymer&btnG=
23. Tripathi A, Tam KC, McKinley GH (2006) Rheology and dynamics of associative polymers in shear and extension: theory and experiments. Macromolecules 39(5):1981–1999. https://doi. org/10.1021/ma051614x.