najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2025-16-1-14-21najo-66Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХEffectiveness of the use of nanoaggregates for polymer treatment in oil fields with hard-to-recover reservesЭффективность применения наноагрегатов при полимерном воздействии на нефтяные месторождения с трудноизвлекаемыми запасамиhttps://orcid.org/0000-0003-2981-5310КадетВ. В.KadetV. V.

Valeriy V. Kadet

119991 Moscow

kadet.v@gubkin.ruВасильевИ. В.VasilevI. V.

Ivan V. Vasilev

119991 Moscow

vas.ivn@mail.ruТютяевА. В.TiutiaevA. V.

Andrei V. Tiutiaev

119991 Moscow

tyutyaev@mail.ruGubkin UniversityRussian Federation2025010620251611421Copyright © Kadet V.V., Vasilev I.V., Tiutiaev A.V., 20252025Кадет В.В., Васильев И.В., Тютяев А.В.Kadet V.V., Vasilev I.V., Tiutiaev A.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/66

The study presents the results of comprehensive research on the efficiency of using polymer systems with nanoaggregates as oil displacement agents. Laboratory tests included experiments to determine the oil displacement coefficient on linear core models, as well as experiments to determine the oil recovery factor using parallel flow tubes of varying permeability, simulating the implementation of polymer flooding technology in stratified-heterogeneous oil-saturated reservoirs. The results of hydrodynamic studies using parallel flow tubes with polymer systems containing nanoaggregates demonstrated a significantly greater redistribution effect of filtration flows compared to traditional polymer solutions. The theoretical modeling of the polymer flooding process was conducted based on a percolation-hydrodynamic model, accounting for the specific flow characteristics of polymer systems with nanoaggregates in a porous medium. A comparison of the theoretical results with laboratory test outcomes showed good agreement.

В работе представлены результаты комплексных исследований эффективности применения полимерных систем с наноагрегатами в качестве нефтевытесняющих агентов. Лабораторные испытания включали в себя эксперименты по определению коэффициента нефтевытеснения на линейных моделях пласта, а также эксперименты по определению коэффициента извлечения нефти на параллельных трубках тока с различной проницаемостью, моделирующих реализацию технологии полимерного заводнения в слоисто-неоднородных нефтенасыщенных коллекторах. Результаты гидродинамических исследований на параллельных трубках тока в случае применения полимерных систем с наноагрегатами продемонстрировали более существенный эффект перераспределения фильтрационных потоков, чем при использовании классических полимерных растворов. Теоретический расчет процесса полимерного заводнения проводился на основе перколяционно-гидродинамической модели, учитывающей особенности течения полимерных систем с наноагрегатами в пористой среде. Сравнение теоретических результатов с результатами лабораторных испытаний показало хорошую согласованность.

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The authors declare that there are no conflicts of interest present.