The capability of producing accurate numerical simulations of transient gas-liquid flows in gas pipelines has long been a serious concern in the oil industry. In this paper we are particularly interested in simulating this type of flow during the occurrence of a leak in the pipe. We use the flux-corrected transport (FCT) finite-difference method, which is second-order in space, to solve a one-dimensional single-pressure four-equation two-fluid model. We consider this two-phase flow to occur in a nearly horizontal pipeline characterized by the stratified-flow pattern, and we assume that the flow is isothermal with a compressible gas phase and an incompressible liquid phase. We model the leak as a source term in the mass conservation equations. The results of the numerical simulations allow the model sensitivity to be studied by changing the leak diameter and the leak location. From this analysis, we may observe how these parameters affect the pressure gradients along the pipeline that develop upstream and downstream of the leak.
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2014 10th International Pipeline Conference
September 29–October 3, 2014
Calgary, Alberta, Canada
Conference Sponsors:
- Pipeline Division
ISBN:
978-0-7918-4610-0
PROCEEDINGS PAPER
Numerical Simulation of Stratified Two-Phase Flow in a Nearly Horizontal Gas-Liquid Pipeline With a Leak
David E. G. P. Bueno,
David E. G. P. Bueno
Federal University of Rio de Janeiro – UFRJ/COPPE/PEM, Rio de Janeiro, RJ, Brazil
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Aline B. Figueiredo,
Aline B. Figueiredo
Federal University of Rio de Janeiro – UFRJ/COPPE/PEM, Rio de Janeiro, RJ, Brazil
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Renan M. Baptista,
Renan M. Baptista
PETROBRAS R&D Center, Rio de Janeiro, RJ, Brazil
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Felipe B. F. Rachid,
Felipe B. F. Rachid
Fluminense Federal University – UFF/PGMEC, Niterói, RJ, Brazil
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Gustavo C. R. Bodstein
Gustavo C. R. Bodstein
Federal University of Rio de Janeiro – UFRJ/COPPE/PEM, Rio de Janeiro, RJ, Brazil
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David E. G. P. Bueno
Federal University of Rio de Janeiro – UFRJ/COPPE/PEM, Rio de Janeiro, RJ, Brazil
Aline B. Figueiredo
Federal University of Rio de Janeiro – UFRJ/COPPE/PEM, Rio de Janeiro, RJ, Brazil
Renan M. Baptista
PETROBRAS R&D Center, Rio de Janeiro, RJ, Brazil
Felipe B. F. Rachid
Fluminense Federal University – UFF/PGMEC, Niterói, RJ, Brazil
Gustavo C. R. Bodstein
Federal University of Rio de Janeiro – UFRJ/COPPE/PEM, Rio de Janeiro, RJ, Brazil
Paper No:
IPC2014-33565, V001T09A025; 8 pages
Published Online:
December 9, 2014
Citation
Bueno, DEGP, Figueiredo, AB, Baptista, RM, Rachid, FBF, & Bodstein, GCR. "Numerical Simulation of Stratified Two-Phase Flow in a Nearly Horizontal Gas-Liquid Pipeline With a Leak." Proceedings of the 2014 10th International Pipeline Conference. Volume 1: Design and Construction; Environment; Pipeline Automation and Measurement. Calgary, Alberta, Canada. September 29–October 3, 2014. V001T09A025. ASME. https://doi.org/10.1115/IPC2014-33565
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