| Autor: |
Aline Barbosa Figueiredo, Felipe Bastos de Freitas Rachid, Gustavo C. R. Bodstein, Rodrigo A. C. Patricio, Carina N. Sondermann |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Volume 7: Fluids Engineering. |
| DOI: |
10.1115/imece2017-71512 |
| Popis: |
In the oil industry the localization of a leak that occurs in a pipeline is an important piece of information that needs to be obtained before mitigating actions can be taken to remedy the leak effects. In this paper we are particularly interested in testing a leak localization model for two-phase flows based upon the intersection of the hydraulic grade lines emanating from the pipeline ends. This methodology is commonly applied to single-phase-flows. In two-phase flows, the flow-pattern that develops along the entire pipeline upstream and downstream of the leak strongly affects the pressure gradient and has significant influence on the location of the leak. We consider this two-phase flow to be steady and to occur in a nearly horizontal pipeline characterized by the stratified-flow pattern. We also assume that the flow is isothermal with a compressible gas phase and an incompressible liquid phase. The results of the numerical simulations allow the model sensitivity to be studied by changing the leak location, for a given leak magnitude. From this analysis, we may observe how these parameters affect the pressure gradients along the pipeline that develop upstream and downstream of the leak and the model’s ability to predict the leak location. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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