caa a22 4500 60622579X CHVBK 20210128101149.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10553-015-0562-4 doi (NATIONALLICENCE)springer-10.1007/s10553-015-0562-4 Modeling Thermal Treatment in Combination with Acid Treatment of a Multilayer Oil Reservoir [Elektronische Daten] [T. Zakirov, A. Nikiforov, A. Latypov] The problem of combined thermal and acid treatment in a multilayer crude-oil reservoir is examined for two-phase flows of fluid (water and crude oil) in a porous medium. A model in the form of a "bundle” of cylindrical capillaries of different radii is used to describe changes in the porosity and permeability of the porous medium as a result of chemical reaction between the acid and rock matrix, and the coalescence rate of the channels due to dissolution of pore walls is calculated based on the Smoluchowski equation. The recovery of crude oil in conventional flooding is compared with flooding with injection of a heat-transfer agent, and flooding using acid and the combination technology. It is shown that thermal treatment combined with acid treatment of a multilayer crude-oil formation provides the most effective oil production conditions. Springer Science+Business Media New York, 2015 mathematical modeling nationallicence thermal conductivity nationallicence acid treatment nationallicence distribution function nationallicence oil recovery nationallicence Zakirov T. Kazan' (Volga Region) Federal University, Kazan, Russia aut Nikiforov A. Institute of Mechanics and Machine Building, Kazan' Scientific Center of the Russian Academy of Sciences, Kazan, Russia aut Latypov A. Kazan' (Volga Region) Federal University, Kazan, Russia aut Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 50/6(2015-01-01), 547-554 0009-3092 50:6<547 2015 50 10553 https://doi.org/10.1007/s10553-015-0562-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10553-015-0562-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zakirov T. Kazan' (Volga Region) Federal University, Kazan, Russia aut NATIONALLICENCE 700 1- Nikiforov A. Institute of Mechanics and Machine Building, Kazan' Scientific Center of the Russian Academy of Sciences, Kazan, Russia aut NATIONALLICENCE 700 1- Latypov A. Kazan' (Volga Region) Federal University, Kazan, Russia aut NATIONALLICENCE 773 0- Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 50/6(2015-01-01), 547-554 0009-3092 50:6<547 2015 50 10553