Vaganov Roman Alexandrovich

@sfu-kras.ru

Department of Chemical Technology of Natural Energy Sources and Carbon Materials
Siberian Federal University

Vaganov Roman Alexandrovich


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https://researchid.co/rvaganov

RESEARCH, TEACHING, or OTHER INTERESTS

Fuel Technology
12

Scopus Publications

Scopus Publications

  • Systematic microfluidic study of the mechanisms of intensification of oil recovery by nanomodified surfactant-polymer compositions
    A. I. Pryazhnikov, R. A. Vaganov, S. S. Lubenets, A. S. Yakimov, M. I. Pryazhnikov, et al.
    Microfluidics and Nanofluidics, 2026
  • Improving the efficiency of surfactant and polymer solutions by modifying them with nanoparticle additives to increase oil recovery
    R.A. Vaganov, V.A. Zhigarev, M.I. Pryazhnikov, A.A. Shebeleva, I.V. Nemtsev, et al.
    Chemical Engineering Science, 2026
  • Separation of Diesel Fuel–Water Emulsions Using Microfiltration Ceramic Membranes from Fly Ash Microspheres
    I. A. Kharchenko, I. R. Volkova, E. V. Elsuf’ev, R. A. Vaganov, E. V. Fomenko, et al.
    Membranes and Membrane Technologies, 2025
  • Comprehensive Study of the Efficiency of Low-Concentration Nanoemulsions with Diesel Fuel for Enhanced Oil Recovery
    Andrey Minakov, Vladimir Zhigarev, Angelica Skorobogatova, Dmitriy Guzei, Andrey Pryazhnikov, et al.
    Colloids and Interfaces, 2025
    This article presents the results of experimental studies examining the effectiveness of low-concentration nanoemulsions for enhanced oil recovery (EOR). The maximum volume concentration of diesel fuel in the emulsions did not exceed 1% by volume. The volume concentration of the emulsifier ranged from 0.05% to 0.4%. A method for preparing stable nanoemulsions was developed. The colloidal stability, viscosity, interfacial tension, wettability, and capillary imbibition rate of low-concentration nanoemulsions were studied. Filtration experiments were conducted to study oil displacement on microfluidic chips simulating a porous medium and core samples. This is the first systematic study of the properties of nanoemulsions containing diesel fuel. It was demonstrated that the developed emulsions have high potential for EOR. It was shown that increasing the emulsifier concentration reduces the contact angle from 35 to 16 degrees and halves the surface tension coefficient. Experiments studying the capillary imbibition of oil-saturated cores with nanoemulsions also confirmed their ability to reduce interfacial tension and improve rock wettability. Oil displacement efficiency during capillary imbibition increases by 22%. Filter tests on microfluidic chips and core samples confirmed the high efficiency of the developed nanoemulsions. Increasing the emulsifier concentration in the emulsion to 0.4% increases the displacement efficiency from 32% for water displacement to 57% for nanoemulsion displacement. Core tests showed that additional injection of nanoemulsions significantly increases the oil displacement efficiency by 10–14%, depending on the emulsifier concentration in the nanoemulsion. It was also established that the use of an aqueous solution of an emulsifier without a hydrocarbon phase does not provide such a significant increase in the displacement coefficient as in the emulsion composition.
  • Microfluidic investigation of the efficiency of oil recovery by surfactant solutions modified with nanoparticles
    A.I. Pryazhnikov, R.A. Vaganov, S.S. Lubenets, A.S. Yakimov, M.I. Pryazhnikov, et al.
    Journal of Molecular Liquids, 2025
  • Potential application of novel low-concentration nanoemulsion with crude oil as dispersed phase for enhanced oil recovery
    A.V. Minakov, V.A. Zhigarev, A.D. Skorobogatova, D.V. Guzey, A.I. Pryazhnikov, et al.
    Surfaces and Interfaces, 2025
  • Urea application to improve the efficiency of hydrochloric acid treatments of carbonate reservoirs
    Roman A. Vaganov, Vladimir A. Zhigarev, Svetlana S. Kositsyna, Daniil D. Chernykh
    Bulletin of the Tomsk Polytechnic University Geo Assets Engineering, 2025
    Relevance. The trend of an annual increase in the share of fields introduced into industrial development and confined to carbonate reservoirs. Predetermines the prospects for the development of inflow stimulation methods. The article deals with issues related to increasing the efficiency of hydrochloric acid treatments of carbonate reservoirs. Aim. Determination of technological solutions to increase the efficiency of hydrochloric acid treatments on carbonate reservoirs. Methods. Experimental research, statistical methods. Results and conclusions. The paper introduces the analysis of acid compositions used for hydrochloric acid treatments and the results of laboratory studies of hydrochloric acid compositions on core samples in the Eastern Siberia. The authors have determined the compatibility of formation fluids and acid compositions as well as the rate of core dissolution for selected compositions. The authors carried out the experiments on measuring the filtration-capacitive properties of core samples. The effectiveness of using urea as a hydrochloric acid modifier for selective hydrochloric acid treatments of carbonate reservoirs was confirmed in laboratory conditions. The authors obtained the changes in the rate of hydrochloric acid with dolomite from urea residues. They assessed the expected effect from the use of urea in hydrochloric acid treatments of carbonate reservoirs and the predicted values of the increase in oil production after hydrochloric acid treatments with urea. It was shown that using an acid composition with urea increases the efficiency of oil production by 26% compared to the application of a base solution of 24% HCl during in hydrochloric acid treatments. The paper introduces the analysis of the competitive advantages of urea in comparison with analogues on the Russian market. This showed that this reagent is widely available on the Russian market and its cost is lower than that of the reagents presented when testing acid compositions.
  • Colloidal stability of nanosuspensions based on highly mineralized solutions
    Roman Vaganov, Vladimir Zhigarev, Maxim Pryazhnikov, Andrey Minakov
    Nano Structures and Nano Objects, 2024
  • Numerical and Experimental Study of Heat Transfer in Pyrolysis Reactor Heat Exchange Channels with Different Hemispherical Protrusion Geometries
    Oleg A. Kolenchukov, Kirill A. Bashmur, Sergei O. Kurashkin, Elena V. Tsygankova, Natalia A. Shepeta, et al.
    Energies, 2023
    One of the most effective technologies for recycling organic waste is its thermal destruction by pyrolysis methods to produce valuable products such as hydrogen and mixtures containing hydrogen. Increasing the thermal power of the flow helps to reduce the formation of secondary reactions, making the non-condensable hydrocarbon gas in the pyrolysis process cleaner, which simplifies further technology for the production of hydrogen and hydrogen-containing mixtures. In addition, the economic viability of pyrolysis depends on the energy costs required to decompose the organic feedstock. Using passive intensifiers in the form of discrete rough surfaces in heat exchanging channels is a widely used method of increasing heat transfer. This paper presents the results of numerical and experimental studies of heat transfer and hydraulic resistance in a channel with and without hemispherical protrusions applied to the heat transfer surface. The investigations were carried out for a reactor channel 150 mm long and 31 mm in diameter, with a constant pitch of the protrusions along the channels of 20 mm and protrusion heights h of 1 to 4 mm for 419 ≤ Re ≤ 2795. Compared to a smooth channel, a channel with protrusions increases heat transfer by an average of 2.23 times. By comparing the heat exchange parameters and the hydraulic resistance of the heat exchange channels, it was determined that h = 2 mm and 838 < Re < 1223 is the combination of parameters providing the best energetic mode of reactor operation. In general, an increase in h and coolant flow rate resulted in an uneven increase in heat transfer intensity. However, as h increases, the dead zone effect behind the protrusions increases and the rough channel working area decreases. Furthermore, increasing Re > 1223 is not advisable due to the increased cost of maintaining high coolant velocity and the reduced heat transfer capacity of the channel.
  • Influence of Process Parameters of Low-Temperature Rapeseed Oil Pyrolysis on the Yield and Quality of the Products
    R. A. Vaganov, M. V. Kuzmicheva, M. S. Shmargunova
    Russian Journal of Applied Chemistry, 2023
  • Phospholipids from plant materials as a corrosion inhibitor in oil production
    E I Lesik, F A Buryukin, R A Vaganov
    Journal of Physics Conference Series, 2021
  • Development of the packer and its application for fixing production casing leaks of oil and gas wells
    Journal of Advanced Research in Dynamical and Control Systems, 2019