To Join Tencent Meeting：https://meeting.tencent.com/dm/Iu5M179e8w0A
Meeting ID：498-2712-5392 Password：654321
Abstract: In the laboratory of General hydrodynamics, we conduct investigation into multicomponent multiphase flows in porous media associated with the injection of carbon dioxide (CO2) into permeable geological formations. In the view of the growing attention to the problem of climate changes and the discussion of low-carbon development strategies for Russia, modeling such flows is in demand. We have developed advanced methods of reservoir simulations of such flows and now apply these methods in fundamental and applied research of CO2 storage in saline aquifers and petroleum reservoirs [1,2]. Self-similar problems describing the processes in the bottom-hole zone of a CO2 injection well has been solved. A simple relationship for the skin factor of a gas well caused by the deposition of salts during evaporation of water is explicitly obtained . For the later stages of CO2 injection, similarity criteria characterizing the maximum distance of gas propagation from the well in an inclined aquifer have been determined. It is shown that the size of the formation area contaminated with gas depends on only two similarity parameters [4,5]. A significant attention is now given to construction of effective (subgrid) models of convective mixing underneath the CO2 plume. The prospects of pumping supercritical CO2 and multicomponent flue gases into underground natural gas storage facilities to increase the efficiency of operation of such facilities is investigated . The prospects of carbon dioxide storage in aquifers of West Siberia are investigated. The depositional environments most suitable for CO2 sequestration are estimated . Today, these results are being implemented in the scientific and technical centers of Russian oil companies.
 MUFITS Reservoir Simulation Software. http://mufits.org/
 Afanasyev A., Vedeneeva E. Compositional modeling of multicomponent gas injection into saline aquifers with the MUFITS simulator // J. Nat. Gas Sci. Eng. 2021. Vol. 94. 103988. DOI: 10.1016/j.jngse.2021.103988.
 Afanasyev A., Grechko S. Analytical expression for the skin factor of the salt deposition zone around a CO2 injection well: Extension to the case of ternary miscible displacement // Geoenergy Sci. Eng. 2023. Vol. 228, 212036. DOI: 10.1016/j.geoen.2023.212036.
 Afanasyev A., Vedeneeva E., Grechko S. Scaling analysis for a 3-D CO2 plume in a sloping aquifer at a late stage of injection // J. Nat. Gas Sci. Eng. 2022. Vol. 106. 104740. DOI: 10.1016/j.jngse.2022.104740.
 Afanasyev A., Vedeneeva E., Mikheev I. Monte Carlo simulation of the maximum migration distance of CO2 in a sloping aquifer // Gas Sci. Eng. 2023. Vol. 117, 205078. DOI: 10.1016/j.jgsce.2023.205078.
 Afanasyev A., Penigin A., Dymochkina M., Vedeneeva E., Grechko S., Tsvetkova Yu., Mikheev I., Pavlov V., Boronin S., Belovus P., Osiptsov A. Reservoir simulation of the CO2 storage potential for the depositional environments of West Siberia // Gas Sci. Eng. 2023. Vol. 114, 204980. DOI: 10.1016/j.jgsce.2023.204980.
Bio: Afanasyev Andrey Aleksandrovich graduated from the Faculty of Mechanics and Mathematics of Moscow State University in 2006. He is a Professor of the Department of Fluid Mechanics since 2021. Besides, he is a Leading researcher and a Chairman of the Council of Young Scientists of the Research Institute of Mechanics of Moscow State University since 2010, and a Corresponding Member of the Russian Academy of Sciences since 2022.
Area of scientific interests: fluid and gas mechanics, flows in porous media, multiphase filtration.
He developed and applied new methods for mathematical modeling of multiphase non-isothermal flows of liquids and gases in geological formations, complicated by phase transformations, critical thermodynamic conditions and the formation of strong discontinuities in flow parameters. Created a set of computer programs MUFITS for calculating complex multiphase filtration flows in engineering applications, such as the development of hydrocarbon fields, underground gas storage, geothermal energy production, etc.
He was awarded the Moscow Government Prize for Young Scientists (2016), the RAS Medal with a Prize for Young Scientists (2011), and the Prize of the International Academic Publishing Company “Science/Interperiodica” for the best publication in RAS journals (2007).