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Slugging in multiphase flow as a mixed initial-boundary value problem for a quasilinear hyperbolic system

Abstract : This paper studies the multiphasis slugging flow phenomenon occurring in oil wells and flow lines. The main contribution is a low-dimensional distributed parameters model, comprising the gas mass fraction, the pressure, and gas velocity as states. Along with appropriate boundary conditions, on the one-dimensional space domain, it constitutes a well-posed mixed initial-boundary value problem for a quasilinear hyperbolic system. Numerical simulation results obtained with a presented characteristics method solver stress the validity of the approach and the fair representativeness of the model. In particular, the period of simulated oscillations and their overall shape is in accordance with reference results from the literature. Controllability and observability open problems are formulated for future works.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00617898
Contributor : François Chaplais <>
Submitted on : Tuesday, August 30, 2011 - 5:49:12 PM
Last modification on : Thursday, September 24, 2020 - 5:04:18 PM

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  • HAL Id : hal-00617898, version 1

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Florent Di Meglio, Glenn Ole Kaasa, Nicolas Petit, Vidar Alstad. Slugging in multiphase flow as a mixed initial-boundary value problem for a quasilinear hyperbolic system. 2011 American Control Conference, Jul 2011, San Francisco, United States. pp.3589-3596. ⟨hal-00617898⟩

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