Liu, Wenjie, Rahmani, Hossein, Larachi, Faïçal et Taghavi, Seyed Mohammad.
2025.
« Numerical analysis of buoyancy-driven immiscible exchange flows in axially rotating pipes ».
In Proceedings of the CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025)
Coll. « Progress in Canadian Mechanical Engineering », vol. 8.
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Résumé
This numerical investigation examines buoyancy-driven immiscible exchange flows in near-horizontal rotating pipes using OpenFOAM simulations, with direct applications to primary cementing of oil and gas wells. The study analyzes a density-unstable configuration where a higher-density fluid (water solutions) overlies a lower-density fluid (silicone oil), focusing on three critical parameters: the pipe's rotational angular velocities, density differences between fluids, and inclination angles. Analysis reveals that the displacing front velocity is an increasing function of density differences and a decreasing function of inclination angles and rotations. Higher density differences, faster rotations, and steeper inclinations could all enhance the Kelvin-Helmholtz instability. Higher pipe rotation dampens axial velocity fluctuations while enhancing radial direction velocity fluctuations, whereas both increased density differences and decreased inclination angles intensify axial velocity fluctuations, with cross-sectional components remaining relatively unchanged across all conditions. Additionally, turbulent kinetic energy is enhanced by faster rotations, higher density differences, and steeper inclination angles. These findings characterize the complex interplay between rotation, density difference, and inclinations in immiscible exchange flows, and provide some insights into practical cementing operations through velocity fluctuation and turbulent kinetic energy analysis.
| Type de document: | Compte rendu de conférence |
|---|---|
| Éditeurs: | Éditeurs ORCID Hof, Lucas A. NON SPÉCIFIÉ Di Labbio, Giuseppe NON SPÉCIFIÉ Tahan, Antoine NON SPÉCIFIÉ Sanjosé, Marlène NON SPÉCIFIÉ Lalonde, Sébastien NON SPÉCIFIÉ Demarquette, Nicole R. NON SPÉCIFIÉ |
| Date de dépôt: | 18 déc. 2025 15:16 |
| Dernière modification: | 18 déc. 2025 15:16 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32447 |
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