When developing oil fields, the main influence on the efficiency of flooding is provided by the breakthrough of water to the producing wells from the injection wells. Among the main reasons for the active water breakthrough are the heterogeneity of the reservoir, the high viscosity of oil, reservoir physico-chemical phenomena. Stopping wells due to high water cut violates the design decisions for the development of the field and reduces oil production. The intensification of oil production with a decrease in the volume of lifted water (and hence liquid) is an important industrial and economic industry task.
Based on the reagents of the AC-CSE-1313 series, the water control technologies for injection and production wells have been developed and tested under field conditions. These technologies are aimed at improving oil production while reducing the water content of products (volumes of liquid being lifted), which, when used massively, reduce industry costs by several billion dollars per year. The technological effect when using technology for injection wells based on reagent AC-CSE-1313 grade B is on average 800-1500 tons of additional oil produced per treated well. The use of technology for production wells based on the AC-CSE-13 grade A reagent allows to reduce the fluid flow rate of producing wells by more than 40% while maintaining or increasing (5-9%) the oil flow rate.
References
1. Khavkin A.Ya., Snizhenie obvodnennosti – osnova energosberezheniya pri neftedobyche (Reducing water cut is the basis for energy saving in oil production), Proceedings of All-Russian scientific and practical conference with international participation “Sovremennye tekhnologii izvlecheniya nefti i gaza. Perspektivy razvitiya mineral'no-syr'evogo kompleksa (rossiyskiy i mirovoy opyt)” (Modern technologies for oil and gas extraction. Prospects for the development of the mineral resource complex (Russian and world experience)), Izhevsk, May, 17-19, 2018, Izhevsk: Publ. of Udmurtskiy universitet, 2018, pp. 161–167.
2. Khavkin A.Ya., Integrated projects of the increase the development of the oil field profitability (In Russ.), Estestvennye i tekhnicheskie nauki, 2019, no. 11, pp. 282–287.
3. Nikitina A.A., Salym Petroleum: ASP technology as a solution to the problem of depletion of traditional reserves (In Russ.), Neftegazovaya vertikal', 2014, no. 10, pp. 24–26.
4. Semikhina L.P., Karelin E.A., Pashnina A.M. et al., Analysis the reagents suitability for ASP-technology of enhanced oil recovery by size and type of their micelles (In Russ.), Socar Proceedings, 2020, no. 2, pp. 91–104, DOI:10.5510/OGP20200200435
5. Khazipov R.Kh., Ganiev R.N., Ignat'eva V.E., Application of nonionic surfactants with the addition of an adsorption and biodegradation reducer to increase oil recovery (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 1990, no. 12, pp. 46–49.
6. Altunina L.K., Kuvshinov V.A., Uvelichenie nefteotdachi plastov kompozitsiyami PAV (Enhanced oil recovery with surfactant compositions), Novosibirsk: Nauka Publ., 1995, 198 p.
7. Patent RU 2723797 C1, Composition for increasing oil production, Inventors: Fakhretdinov R.N., Selimov D.F., Tastemirov S.A., Yakimenko G.Kh., Pasanaev E.A.
8. Patent no. 2592932 RU, Composition for increasing oil production, Inventors: Fakhretdinov R.N., Yakimenko G.Kh., Selimov D.F.
9. Fakhretdinov R.N., Fatkullin A.A., Selimov D.F. et al., Laboratory and field tests of AC-CSE-1313-B reagent as the basis of water control technologies (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2020, no. 6, pp. 68–71, DOI: 10.24887/0028-2448-2020-6-68-71.
10. Fakhretdinov R.N., Fatkullin A.A., Yakimenko G.Kh. et al., Increase in oil production by application pseudoplastic hydrophobic polymer system SPA-Well (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2021, no. 11, pp. 120–123, DOI: 10.24887/0028-2448-2021-11-120-123
11. RD 153-39.1-004-96, Metodicheskoe rukovodstvo po otsenke tekhnologicheskoy effektivnosti primeneniya metodov uvelicheniya nefteotdachi (Guidelines for assessing the technological effectiveness of enhanced oil recovery methods), Moscow: Publ. of VNIIneft, 88 p.
12. Kuznetsov M.A., Ishkinov S.M., Kuznetsova T.I. et al., The technology for water shutoff in producing wells (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2017, no. 7, pp. 58–60.
