Three-Dimensional Calculation of Air-Water Two-Phase Flow in Centrifugal Pump Impeller Based on a Bubbly Flow Model

Minemura, Kiyoshi; Uchiyama, Tomomi

doi:10.1115/1.2910210

Cited by 38 publications

(16 citation statements)

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“…Minemura and Murakimi [10][11][12] investigated the flow patterns and characteristics of bubbles in the impeller of an electrical submersible pump under different operating conditions using highspeed photography. Four types of flow patterns were recognized: isolated bubbles flow, bubbly flow, gas pocket flow and segregated gas flow.…”

Section: Introductionmentioning

confidence: 99%

Visualization study of gas–liquid two-phase flow patterns inside a three-stage rotodynamic multiphase pump

Zhang

Cai

et al. 2016

Experimental Thermal and Fluid Science

124

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Section: Introductionmentioning

confidence: 99%

Visualization study of gas–liquid two-phase flow patterns inside a three-stage rotodynamic multiphase pump

Zhang

Cai

et al. 2016

Experimental Thermal and Fluid Science

124

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“…This caused an increase of the local gas void fraction, which cannot be captured for the Sachdeva (1990) model because of the assumption that fluid flows in streamlines. Minemura and Uchiyama (1993) observed that the initiation of surging point is caused by a flow-pattern transition from a bubbly flow to slug-flow-like flow pattern. By analogy to two-phase flow in pipe, Minemura and Uchiyama (1993) argued that it may occur at a certain critical gas void fraction.…”

Section: Introductionmentioning

confidence: 99%

Review of Electrical-Submersible-Pump Surging Correlation and Models

Gamboa

Prado

2011

SPE Production &Amp; Operations

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Head deterioration observed in electrical submersible pumps (ESPs) under two-phase flow is mild until a sudden performance breakdown is observed in the pump head curve at a certain volumetric gas fraction. This critical condition is termed surging. Consequently, the head that the pump generates with two-phase flow depends on whether the stages operate under conditions before (mild performance deterioration) or after (severe performance deterioration) the surging point.The surging, for engineering purposes, can be predicted by published correlations, but the lack of a theoretical basis is a limiting factor for their application. Mechanistic models seem to be the proper alternative. However, the poor understanding of the physical mechanism that causes the surging hinders the development of such mechanistic models. This paper reviews some of these correlations and mechanistic models by comparing the correlation predictions against experimental data acquired in a closed loop with water and air using a commercial 24-stage ESP. The data cover a wide range of volumetric gas fractions, rotational speeds, and intake pressures. As a consequence of this analysis, a new correlation has been formulated. This correlation predicts the initiation of the surging as a function of rotational speed and fluid properties.

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“…The gas pocket near the impeller blade was also identified and compared with experimental observations. Minemura and Uchiyama [106] solved 3D momentum equations with a finite-element method to predict gas/liquid flow behavior in a rotating centrifugal pump impeller. Tremante et al [107] numerically studied gas/liquid flow through a cascade axial pump by CFD simulation.…”

Section: Three-dimension Computational Fluid Dynamics (Cfd)mentioning

confidence: 99%

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

Zhu

Zhang

2018

Energies

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As the second most widely used artificial lift method in petroleum production (and first in produced amount), electrical submersible pump (ESP) maintains or increases flow rate by converting kinetic energy to hydraulic pressure of hydrocarbon fluids. To facilitate its optimal working conditions, an ESP has to be operated within a narrow application window. Issues like gas involvement, changing production rate and high oil viscosity, greatly impede ESP boosting pressure. Previous experimental studies showed that the presence of gas would cause ESP hydraulic head degradation. The flow behaviors inside ESPs under gassy conditions, such as pressure surging and gas pockets, further deteriorate ESP pressure boosting ability. Therefore, it is important to know what parameters govern the gas-liquid flow structure inside a rotating ESP and how it can be modeled. This paper presents a comprehensive review on the key factors that affect ESP performance under gassy flow conditions. Furthermore, the empirical and mechanistic models for predicting ESP pressure increment are discussed. The computational fluid dynamics (CFD)-based modeling approach for studying the multiphase flow in a rotating ESP is explained as well. The closure relationships that are critical to both mechanistic and numerical models are reviewed, which are helpful for further development of more accurate models for predicting ESP gas-liquid flow behaviors.

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Three-Dimensional Calculation of Air-Water Two-Phase Flow in Centrifugal Pump Impeller Based on a Bubbly Flow Model

Cited by 38 publications

References 0 publications

Visualization study of gas–liquid two-phase flow patterns inside a three-stage rotodynamic multiphase pump

Visualization study of gas–liquid two-phase flow patterns inside a three-stage rotodynamic multiphase pump

Review of Electrical-Submersible-Pump Surging Correlation and Models

A Review of Experiments and Modeling of Gas-Liquid Flow in Electrical Submersible Pumps

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