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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
ADJUSTING TWO-PHASE FLOW CORRELATION TO INCLUDE RADIAL MASS TRANSFER EFFECTS
Submission Author:
Rafael Alves , SC
Co-Authors:
Rafael Alves, Marcus Vinícius Canhoto Alves
Presenter: Rafael Alves
doi://10.26678/ABCM.ENCIT2020.CIT20-0530
Abstract
Correlations to determine pressure drop and void fraction for two-phase flow are developed based on experimental data, however these data are rarely obtained in pipelines that receive radial inflow through wall perforations such as, for example, producer tubes in oil fields and gas. On the other hand, many studies have obtained correlations to calculate the friction factor in single-phase flows in this type of flow with radial inflow. In this way, this work aims to analyze the impacts of adjusting a correlation of calculation of fraction of void and head loss to consider the effects of acceleration and friction caused by radial influx. The methodology used to assess these impacts is to consider a case of a horizontal-well producing an oil reservoir and obtain the production results, in a simulator coupled with a simplified reservoir model, of the correlation and the same correlation modified to take into account the effects of radial inflow, taking as a reference value a second correlation obtained in experiments with this type of inflow. The results obtained showed that there was a significative difference between the correlation before and after the modification, and after the modification the correlation was much closer to the pressure results of the correlation obtained in experiments with inflow, although it has preserved the behavior of the liquid holdup of unmodified correlation.
Keywords
two-phase flow correlations, pressure drop, void fraction, radial influx.
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