Modeling of Transient Two-Phase Flow in a Well After Startup of Electrical Submersible Pump

Engineering Technology Conference on Energy, Parts A and B ◽

10.1115/etce2002/prod-29038 ◽

2002 ◽

Author(s):

Oscar Ruiz-Maldonado ◽

Yuri V. Fairuzov

Keyword(s):

Two Phase Flow ◽

Equation Model ◽

Phase Flow ◽

Submersible Pump ◽

Centrifugal Pumps ◽

Two Phase ◽

Drift Flux Model ◽

Drift Flux ◽

Electrical Submersible Pump ◽

Gas Liquid Flow

A numerical model of transient two-phase in a wellbore after startup of electrical submersible pump (ESP) was developed in the present study. The model consists of three modules. The first module, the wellbore model, predicts two-phase gas-liquid flow in the wellbore. The second module describes performance characteristics of centrifugal pumps. The third module, the reservoir model, predicts the variable well inflow after startup of the pump. The wellbore model is based on a drift-flux model (three equation model) of two-phase flow. The relative velocity is determined using a flow regime-dependent slip correlation or a mechanistic steady flow model. Field data collected during a startup of an ESP well were analyzed. This analysis showed that the response of the system to the ESP startup is governed by dynamic interacticn between the well and reservoir. The results obtained can be used for the development of production startup or restart procedures for wells equipped with ESP systems.

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Control-Oriented Drift-Flux Modeling of Single and Two-Phase Flow for Drilling

Volume 3: Industrial Applications; Modeling for Oil and Gas, Control and Validation, Estimation, and Control of Automotive Systems; Multi-Agent and Networked Systems; Control System Design; Physical Human-Robot Interaction; Rehabilitation Robotics; Sensing and Actuation for Control; Biomedical Systems; Time Delay Systems and Stability; Unmanned Ground and Surface Robotics; Vehicle Motion Controls; Vibration Analysis and Isolation; Vibration and Control for Energy Harvesting; Wind Energy ◽

10.1115/dscc2014-6121 ◽

2014 ◽

Cited By ~ 10

Author(s):

Ulf Jakob F. Aarsnes ◽

Florent Di Meglio ◽

Steinar Evje ◽

Ole Morten Aamo

Keyword(s):

Two Phase Flow ◽

Phase Flow ◽

Two Phase ◽

Drift Flux Model ◽

Drift Flux ◽

Underbalanced Drilling ◽

Flux Model ◽

Gas Liquid Flow ◽

And Control ◽

Operating Regimes

We present a simplified drift-flux model for gas-liquid flow in pipes. The model is able to handle single and two-phase flow thanks to a particular choice of empirical slip law. A presented implicit numerical scheme can be used to rapidly solve the equations with good accuracy. Besides, it remains simple enough to be amenable to mathematical and control-oriented analysis. In particular, we present an analysis of the steady-states of the model that yields important considerations for drilling practitioners. This includes the identification of 4 distinct operating regimes of the system, and a discussion on the occurrence of slugging in underbalanced drilling.

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Formulation of a fully implicit numerical scheme for simulation of two-phase flow in a vertical channel using the Drift-Flux Model

Progress in Nuclear Energy ◽

10.1016/j.pnucene.2017.11.009 ◽

2018 ◽

Vol 103 ◽

pp. 91-105 ◽

Cited By ~ 2

Author(s):

A. Hajizadeh ◽

H. Kazeminejad ◽

S. Talebi

Keyword(s):

Numerical Scheme ◽

Two Phase Flow ◽

Vertical Channel ◽

Phase Flow ◽

Two Phase ◽

Drift Flux Model ◽

Drift Flux ◽

Fully Implicit ◽

Flux Model

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Interfacial Structures and Regime Transition in Co-Current Downward Bubbly Flow

Journal of Fluids Engineering ◽

10.1115/1.1777229 ◽

2004 ◽

Vol 126 (4) ◽

pp. 528-538 ◽

Cited By ~ 15

Author(s):

S. Kim ◽

S. S. Paranjape ◽

M. Ishii ◽

J. Kelly

Keyword(s):

Two Phase Flow ◽

Bubbly Flow ◽

Superficial Velocity ◽

Phase Flow ◽

Two Phase ◽

Drift Flux Model ◽

Drift Flux ◽

Flow Parameters ◽

Interfacial Structures ◽

Flux Model

The vertical co-current downward air-water two-phase flow was studied under adiabatic condition in round tube test sections of 25.4-mm and 50.8-mm ID. In flow regime identification, a new approach was employed to minimize the subjective judgment. It was found that the flow regimes in the co-current downward flow strongly depend on the channel size. In addition, various local two-phase flow parameters were acquired by the multi-sensor miniaturized conductivity probe in bubbly flow. Furthermore, the area-averaged data acquired by the impedance void meter were analyzed using the drift flux model. Three different distributions parameters were developed for different ranges of non-dimensional superficial velocity, defined by the ration of total superficial velocity to the drift velocity.

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One-dimensional drift-flux model for two-phase flow in pool rod bundle systems

International Journal of Multiphase Flow ◽

10.1016/j.ijmultiphaseflow.2011.11.004 ◽

2012 ◽

Vol 40 ◽

pp. 166-177 ◽

Cited By ~ 18

Author(s):

Shao-Wen Chen ◽

Yang Liu ◽

Takashi Hibiki ◽

Mamoru Ishii ◽

Yoshitaka Yoshida ◽

...

Keyword(s):

Two Phase Flow ◽

Phase Flow ◽

Two Phase ◽

One Dimensional ◽

Drift Flux Model ◽

Drift Flux ◽

Rod Bundle ◽

Flux Model

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Comparison of Drift-Flux Models for Void Fraction Prediction in Sub-Channel of Vertical Rod Bundles

Volume 9: Student Paper Competition ◽

10.1115/icone26-81435 ◽

2018 ◽

Author(s):

Quanyao Ren ◽

Liangming Pan ◽

Wenxiong Zhou ◽

Tingpu Ye ◽

Hang Liu ◽

...

Keyword(s):

Void Fraction ◽

Drift Velocity ◽

Nuclear Reactor ◽

Two Phase Flow ◽

Rectangular Channel ◽

Phase Flow ◽

Rod Bundles ◽

Two Phase ◽

Drift Flux Model ◽

Drift Flux

In order to simulate the transfer of mass, momentum and energy in the gas-liquid two-phase flow system, tremendous work focused on the phenomenon, mechanisms and models for two-phase flow in different channels, such as circular pipe, rectangular channel, rod bundle and annulus. Drift-flux model is one of the widely used models for its simplicity and good accuracy, especially for the reactor safety analysis codes (RELAP5 and TRAC et al.) and sub-channel analysis code (COBRA, SILFEED and NASCA et al.). Most of the adopted drift-flux models in these codes were developed based on the void fraction measured in pipe and annulus, which were different with the actual nuclear reactor. Although some drift-flux models were developed for rod bundles, they were based on the void fraction on the whole cross-section not in subchannel in rod bundles due to the lack of effective measuring methods. A novel sub-channel impedance void meter (SCIVM) has been developed to measure the void fraction in sub-channel of 5 × 5 rod bundles, which is adopted to evaluate these existing drift-flux models for rod bundles. By comparison, the values of drift-flux parameters have large differences among different correlations, which are suggested to be reconsidered. Based on the experimental data and physical laws, Lellouche-Zolotar and Chexal-Lellouche correlations show a better performance for drift velocity. If the predicting error of void fraction is the only concerned parameter, Chen-Liu, Ishizuka-Inoue and Chexal-Lellouche correlations are recommended for averaged relative error less than 30%. More experiments are suggested to focus on the distribution parameter and drift velocity through their definition.

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