Investigation of the wetting effects on two-phase fluid flows in a heterogeneous digital core under dynamic conditions
| Autor: | T. R. Zakirov, M. G. Khramchenkov |
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| Jazyk: | English<br />Russian |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Georesursy, Vol 24, Iss 1, Pp 16-26 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1608-5043 1608-5078 |
| DOI: | 10.18599/grs.2022.1.2 |
| Popis: | The paper studies the wetting effects on the characteristics of two-phase fluid flows in porous media. The originality of paper is a study of displacement under dynamic conditions when the action of viscous forces is significant. As a research tool, the methods of mathematical modeling are used – the lattice Boltzmann equations in a combination with a color-gradient model that describes interphacial interactions. Numerical experiments are carried out in a digital model of a porous medium characterized by a high degree of the pore space heterogeneity. In this work, a map of flow regimes in the coordinates “capillarity number – contact angle” is performed. The identification of four crossover modes between flows with capillary, viscous fingers and with a stable displacement front is carried out. Special attention is paid to the study of the influence of wetting effects on the specific length of the “injected fluid – skeleton” interface. |
| Databáze: | Directory of Open Access Journals |
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