Қазақстанның мұнай-газ саласының хабаршысыҚазақстанның мұнай-газ саласының хабаршысы2707-42262957-806XKMG Engineering10785910.54859/kjogi107859Research ArticleIncreased oil recovery through the use of combined technologyMamalovE. N.evgeniy_mamalov@rambler.ruGorshkovaE. V.<p>PhD</p>jenyagarshkova@rambler.ruAzerbaijan National Academy of Sciences160520224189931605202216052022Copyright © 2022, Mamalov E.N., Gorshkova E.V.2022<p>There is a growing number of fields in the world that are at the last stage of development. These fields are characterized by high residual oil saturation and water saturation. In addition, newly discovered fields are characterized by the content of high-viscosity oil. The development of such reservoirs is associated with great difficulties. This paper considers a combined technology that allows to intensify oil production from oil reservoirs. The studies were carried out on a homogeneous reservoir model in the following sequence. First, we carry out the displacement of oil by injecting electrochemically modified water (catholyte). Then we pump in a gas-liquid emulsion slug, which we push through with water or catholyte. The combined action of the emulsion and catholyte leads to an increase in the pressure drop and a change in the filtration rate. As a result, this leads to an increase in the oil recovery factor.</p>oilviscosityelectrochemically modified watercatolyteemulsionslugoil recoverymedium pHresidual resistance factordifferential pressurefluid flowмұнайтұтқырлықэлектрохимиялық түрлендірілген сукатолитэмульсияжиекмұнай шығарурН ортақалдық кедергі факторыайырмашылыққысымсұйықтық шығынынефтьвязкостьэлектрохимически модифицированная водакатолитэмульсияоторочканефтеотдачарН средыфактор остаточного сопротивленияперепаддавлениерасход жидкости1.Мамалов Е.Н. 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Регулирование перемещения фронта вытеснения и повышение охвата слоисто-неоднородного пласта процессом внутрипластового горения за счет применения пенных систем. – Материалы международной научно-практической конференции «Современные методы разработки месторождений с трудноизвлекаемыми запасами и нетрадиционными коллекторами». – Актау, 2019, т. 1, с. 276–287. // Mamalov E.N., Gorshkova E.V. Regulirovanie peremeshheniya fronta vytesneniya i povyshenie ohvata sloisto-neodnorodnogo plasta processom vnutriplastovogo goreniya za schet primeneniya pennyh system [Controlling the migration of the displacement front and increasing the coverage of a layered-heterogeneous reservoir by the process of in-situ combustion through the use of foam systems]. – Materialy mezhdunarodnoi nauchno-prakticheskoi konferencii «Sovremennye metody razrabotki mestorozhdenii s trudnoizvlekaemymi zapasami i netradicionnymi kollektorami» [Proceedings of the international scientific-practical conference "Modern methods of field development with hard-to-recover reserves and unconventional reservoirs"]. – Aktau, 2019, v. 1, pp. 276–287.