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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Comparison of two-phase flow correlations for hypothetical production well
Submission Author:
Marcus Vinícius Canhoto Alves , SC , Brazil
Co-Authors:
Eduardo Bader Dalfovo Mohr Alves, Marcus Vinícius Canhoto Alves
Presenter: Eduardo Bader Dalfovo Mohr Alves
doi://10.26678/ABCM.COBEM2017.COB17-2448
Abstract
The industry of petroleum and gas commonly face the concurrent flow of liquid and gas in pipes. There is a great difficulty in calculating the pressure drop and liquid hold up that are the most important unknowns. For both calculations, the common practice is to use experimental correlations while assuming steady state. This assumption is reasonable due to the longs periods of time that wells and pipelines operate and keep their production in a steady condition. Among the correlations most commonly used in the industry there are the correlations of modified Hagedorn and Brow by [1], as well as the correlation of Beggs and Brill [2]. These however don’t consider crucial physical phenomena such as the iteration of the phases considering the topology of the interface. For such description a phenomenological approach should be considered for more accurate results. This paper presents a systematic comparison among the industry’s most used correlations as well other well-established multiphase flow correlations and more physically based models proposed by [3] and [4]. Some of these correlations wore already compared by [5] and [6] for calculations of void fraction and the behavior of the heat transfer in a production well, respectively. The main focus is than to compare the results from the usual correlations and these two more physically based formulations. Due to the lack of field data for both the liquid hold up and the pressure drop the comparison is be based on a tendency in the correlations used for the simulations.
Keywords
Two-phase Flow, Production Well, Numerical Modeling, pressure drop, liquid holdup
