kaz29Вестник Казахстанско-Британского технического университетаHerald of the Kazakh-British Technical University1998-66882959-8109Казахстанско-Британский Технический Университет10.55452/1998-6688-2026-23-3-518-535kaz29-3210Research ArticleНЕФТЕГАЗОВАЯ ИНЖЕНЕРИЯ И ГЕОЛОГИЯOIL AND GAS ENGINEERING, GEOLOGYФИЗИКО-ХИМИЧЕСКИЕ ХАРАКТЕРИСТИКИ КОМПОЗИЦИОННЫХ ПЕН НА ОСНОВЕ ПАВ И НАНОЧАСТИЦ И ИХ ЭФФЕКТИВНОСТЬ В ПОВЫШЕНИИ НЕФТЕОТДАЧИPHYSICO-CHEMICAL CHARACTERISTICS OF COMPOSITE FOAMS BASED ON SURFACTANTS AND NANOPARTICLES AND THEIR EFFECTIVENESS IN INCREASING OIL RECOVERYhttps://orcid.org/0000-0001-6727-0257ИсаеваА. Б.IsayevaA. B.

PhD

Алматы 

PhD

Almaty

isa-asem@mail.ruhttps://orcid.org/0000-0001-5115-5879АйдароваС. Б.AidarovaS. B.

Д.х.н., профессор

Алматы 

D.Sc. (Chem.), Professor

Almaty

s.aidarova@kbtu.kzhttps://orcid.org/0000-0002-2217-9975ШриповаА. А.SharipovaA. A.

PhD, ассоциированный профессор

Алматы 

PhD, associate professor

Almaty

a_sharipova85@mail.ruИсаховМ. О.IssakhovM. O.

PhD докторант

Алматы 

PhD student

Almaty

 

mir001@gmail.comКазахстанско-Британский технический университетКазахстанKazakh-British Technical UniversityKazakhstanSatbayev universityКазахстанSatbayev universityKazakhstan202627092026233518535Copyright © Исаева А.Б., Айдарова С.Б., Шрипова А.А., Исахов М.О., 20262026Исаева А.Б., Айдарова С.Б., Шрипова А.А., Исахов М.О.Isayeva A.B., Aidarova S.B., Sharipova A.A., Issakhov M.O.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestnik.kbtu.edu.kz/jour/article/view/3210

Несмотря на значительный объем исследований, посвященных влиянию наночастиц на устойчивость газовых пен и коэффициент снижения подвижности (MRF), в литературе отсутствуют единые рекомендации по оптимальному диапазону концентраций наночастиц с учетом комплекса пластовых параметров, включая температуру, давление, проницаемость керна и соленость пластовых флюидов. Кроме того, влияние наностабилизированных пен на процессы вытеснения нефти и взаимодействие с нефтяной фазой изучено недостаточно, а в масштабе реальных месторождений оценка эффективности нанопен (NAF) при различных уровнях неоднородности коллектора практически не выполнялась. Настоящее исследование направлено на устранение этих пробелов путем сочетания лабораторных экспериментов и численного моделирования. В работе представлены результаты всестороннего исследования физико-химических характеристик композиционных систем на основе поверхностно-активных веществ (ПАВ) и наночастиц диоксида кремния, ориентированных на повышение стабильности газовых пен, применяемых в процессах повышения нефтеотдачи. Показано, что традиционные ПАВ-пены демонстрируют ограниченную устойчивость при высоких температурах, давлениях и минерализации, что существенно снижает их эффективность в условиях реальных пластов. Для решения этой проблемы изучено влияние наночастиц SiO₂ на межфазные свойства таких систем, включая анионные, катионные и неионогенные ПАВ. На основе экспериментальных данных определены модифицирующие коэффициенты для периода полураспада пены и MRF, которые интегрированы в симуляционную модель вытеснения нефти. Численное моделирование показало значительный рост охвата пласта и задержку газового прорыва при использовании нанокомпозитных пен, особенно в условиях высокой неоднородности. Полученные результаты подтверждают перспективность наностабилизированных пен как эффективных агентов МУН и обосновывают их применение для увеличения нефтеотдачи на сложнопостроенных месторождениях.

Despite a significant amount of research on the effect of nanoparticles on the stability of gas foams and the coefficient of reduced mobility (MRF), there are no uniform recommendations in the literature on the optimal range of nanoparticle concentrations, taking into account a set of reservoir parameters, including temperature, pressure, core permeability and salinity of reservoir fluids. In addition, the effect of nanostabilized foams on oil displacement processes and interaction with the oil phase has not been sufficiently studied, and on the scale of real deposits, the effectiveness of nanofoams (NAF) at various levels of reservoir heterogeneity has not been practically performed. The present study aims to address these gaps through a combination of laboratory experiments and numerical simulations. The paper presents the results of a comprehensive study of the physico-chemical characteristics of composite systems based on surfactants and silicon dioxide nanoparticles, aimed at increasing the stability of gas foams used in oil recovery enhancement processes. It has been shown that traditional surfactant foams exhibit limited stability at high temperatures, pressures, and mineralization, which significantly reduces their effectiveness in real formations. To solve this problem, the effect of SiO2 nanoparticles on the interfacial properties of such systems, including anionic, cationic, and nonionic surfactants, has been studied. Based on experimental data, modifying coefficients for the foam half-life and MRF have been determined, which are integrated into the simulation model of oil displacement. Numerical modeling has shown a significant increase in reservoir coverage and delayed gas breakthrough when using nanocomposite foams, especially in conditions of high heterogeneity. The results obtained confirm the prospects of nanostabilized foams as effective MUN agents and substantiate their use to increase oil recovery in complex fields.

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