Three-phase flow (water, oil and gas) in a vertical circular cylindrical duct with leaks: A theoretical study

Santos, Wanessa Raphaella Gomes dos; Barbosa, Enivaldo Santos; Neto, Severino de Farias; Lima, Antonio de; Lima, Wanderson de

doi:10.1260/1750-9548.8.3.253

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…For leakages in gas-pipes, researchers have also suggested equations in order to predict q including factors such as leakage diameter and a material-and geometry dependent constant (Guo et al, 2007;Edrisi & Kam, 2013). Three-phase flow (water, oil and gas) in pipes with leaks were also investigated (Santos et al, 2014), however the authors did not suggest predictive equation for q. Although the equations proposed for liquids leaking in liquid and gas leaking in gas could not be used to estimate water leaking out through the leakage into the air, they could be used as a guide, and the independent variables considered in them could be used as a reference for this study.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydraulic and geometric factors upon leakage flow rate in pressurized pipes

Silva

Gonçalves

Janzen

2021

RBRH

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Computational Fluid Dynamics (CFD) simulations of a leakage in a pressurized pipe were undertaken to determine the empirical effects of hydraulic and geometric factors on the leakage flow rate. The results showed that pressure, leakage area and leakage form, influenced the leakage flow rate significantly, while pipe thickness and mean velocity did not influence the leakage flow rate. With relation to the interactions, the effect of pressure upon leakage flow rate depends on leakage area, being stronger for great leakage areas; the effects of leakage area and pressure on leakage flow rate is more pronounced for longitudinal leakages than for circular leakages. Finally, our results suggest that the equations that predict leakage flow rate in pressurized pipes may need a revision.

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Section: Introductionmentioning

confidence: 99%

Effect of hydraulic and geometric factors upon leakage flow rate in pressurized pipes

Silva

Gonçalves

Janzen

2021

RBRH

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“…Most of the approaches are characterized by advantages and disadvantages according to the industrial flow application. However high industrial and chemical engineering interest is developed to the crude oils flows numerical estimation (Santos, 2014), , where properties' calculation techniques must be explored and the recirculation zones according to the flow rate range have to be localized. The leak study and detection in such flows present high demand by the relating industries and present a challenge in order to manage and create a flexible, accurate and simple scheme, easy to be implemented in various cases by industrial engineers.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation in pipes with leakages

Georgantopoulou

Khalifa

Vasilikos

et al. 2019

Conference Proceedings of ICMET Oman

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Petroleum and marine technology applications and infrastructures consist of extended pipelines’ networks in order to accommodate fluid transfer needs. The pipelines’ leaks may occur and lead to high energy and working fluid losses, while most of the times these are related to environmental hazards. Additionally, corrosion problems are reported due to this un-desirable flow rate loss. In this paper the rheological behavior of the crude oil flow inside pipes with one or two leakages is numerically analyzed, studied and solved. Un-uniform and adaptive grids to the location of the leakages are generated in order to cover the specific requirements of the pipe domain, while finite volume methodology is followed for the discretization of the flow equations. The type of the oil has been received to be the Arabian light one, while an approach is developed for its properties. The boundary conditions are the corresponded flow rate – pressure flow conditions for all the exits of the pipe due to the better control of the algorithm that they usually provide. Various test cases have been developed for different Reynolds number values, providing robust and accurate results concerning the velocity and pressure distribution. It seems that high pressure variation is depicted near the location of the leaks, and in this way a clear indication is occur for such phenomenon.

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Three-phase flow (water, oil and gas) in a vertical circular cylindrical duct with leaks: A theoretical study

Cited by 2 publications

References 10 publications

Effect of hydraulic and geometric factors upon leakage flow rate in pressurized pipes

Effect of hydraulic and geometric factors upon leakage flow rate in pressurized pipes

Numerical simulation in pipes with leakages

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