Shakeri, Amin, Ghazal, Abdallah et Karimfazli, Ida. 2025. « From experiments to theory: 3D modeling of yield-stress fluid injection in confined pipes ». Communication lors de la conférence : CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025).
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Résumé
The injection of a yield stress (viscoplastic) fluid into a domain containing a lighter Newtonian fluid arises in a variety of industrial processes including Plug and Abandonment of Oil and Gas wells. In this study we develop a three-dimensional numerical model of such flows, investigating parameter ranges relevant to the closure processes of oil and gas wells. We consider injecting the heavy fluid from an injector placed in a closed-end pipe. We illustrate the rheological properties of the injected fluid, in particular its yield stress, influence flow regimes, and overall displacement efficiency.To validate our computational approach, a set of simulations is compared against experimental data involving two immiscible Newtonian fluids. The experiments showed that, the heavier fluid displaces the lighter fluid. Our numerical model predicts the same flow dynamics. The predicted advancing front velocity also closely matches the experimental data.Building on this validated framework, the model is extended to predict the flow when the injected fluid has a yield stress. We explore a wide range of yield stress values, represented with $Bn$ number ($0The results of our numerical simulations offer valuable guidance for applications where precise management of heavier-fluid injection is needed, whether to limit mixing in sensitive operations, improve displacement efficiency, or ensure robust fluid placement in geometrically constrained configurations.
| Type de document: | Communication (Communication) |
|---|---|
| Informations complémentaires: | Progress in Canadian Mechanical Engineering, Volume 8. Co-chairs: Lucas A. Hof, Giuseppe Di Labbio, Antoine Tahan, Marlène Sanjosé, Sébastien Lalonde and Nicole R. Demarquette. |
| Date de dépôt: | 18 déc. 2025 14:29 |
| Dernière modification: | 18 déc. 2025 14:29 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32088 |
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