On stability boundary of the flow of an acid solution through a chemically active porous medium

It is known that during the flow, if the displacing fluid can chemically react with the components of porous medium and with the release of a gas phase, then such a flow regime can be unstable. During this process, pressure fluctuations can be observed, and the displacing fluid will move in “waves”....

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-11, Vol.2090 (1), p.12029
Main Authors: Plavnik, Rinat, Zavialov, Ivan, Konyukhov, Andrey, Izvekov, Oleg, Negodyaev, Sergey
Format: Article
Language:English
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Summary:It is known that during the flow, if the displacing fluid can chemically react with the components of porous medium and with the release of a gas phase, then such a flow regime can be unstable. During this process, pressure fluctuations can be observed, and the displacing fluid will move in “waves”. In the course of our research, a simple mathematical model was proposed that provides a qualitative explanation of the reasons for the emergence of such a phenomenon; laboratory modeling was carried out, and the criterion of the “waves” formation was found, depending on the concentration of chemically active components. The proposed model can predict the emergence of the wave instabilities in a laboratory experiment, which will allow to carry out a future experiment on a larger scale.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2090/1/012029