Pipe Inclination Effects on Slug Flow Characteristics of High Viscosity Oil-Gas Two-Phase Flow for Near Horizontal Pipes

2017 ◽  
Author(s):  
Samet Ekinci ◽  
T. B. Aydin ◽  
C. Sarica ◽  
E. Pereyra ◽  
T. Kim
Keyword(s):  
Slug Flow ◽  
Two Phase Flow ◽  
Flow Characteristics ◽  
High Viscosity ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipes ◽  
High Viscosity Oil ◽  
Oil Gas ◽  
Pipe Inclination

An experimental study of the inclination angle (±2° from horizontal) effects on high viscosity oil and gas two-phase flow has been conducted, and the available multiphase flow models/correlations have been evaluated using the acquired data. The effect of pipe inclination on the slug flow characteristics of highly viscous oil-gas two-phase flow was studied based on 1,040 data points covering a wide range of experimental conditions and liquid viscosities in a 50.8-mm-ID pipe at 2° downward and upward inclinations from horizontal. The oil viscosity ranged from 155 cP to 587 cP. Superficial liquid and gas velocities varied from 0.1 m/s to 0.8 m/s and from 0.1 m/s to 5 m/s, respectively. The basic two-phase flow parameters and slug flow characteristics have been analyzed and compared with the past studies conducted for near horizontal pipes.

Effects of Inclination on Flow Characteristics of High Viscosity Oil/Gas Two Phase Flow

2012 ◽  
Author(s):  
Benin Chelinsky Jeyachandra ◽  
Cem Sarica ◽  
Hong-Quan Zhang ◽  
Eduardo Javier Pereyra
Keyword(s):  
Two Phase Flow ◽  
Flow Characteristics ◽  
High Viscosity ◽  
Phase Flow ◽  
Two Phase ◽  
High Viscosity Oil ◽  
Oil Gas

Slug frequency in high viscosity oil-gas two-phase flow: Experiment and prediction

2017 ◽  
Vol 54 ◽  
pp. 109-123 ◽  
Author(s):  
Yahaya D. Baba ◽  
Archibong E. Archibong ◽  
Aliyu M. Aliyu ◽  
Abdulhaqq I. Ameen
Keyword(s):  
Two Phase Flow ◽  
High Viscosity ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Experiment ◽  
High Viscosity Oil ◽  
Oil Gas

scholarly journals Estimating slug liquid holdup in high viscosity oil-gas two-phase flow

2019 ◽  
Vol 65 ◽  
pp. 22-32 ◽  
Author(s):  
A. Archibong-Eso ◽  
N.E. Okeke ◽  
Y. Baba ◽  
A.M. Aliyu ◽  
L. Lao ◽  
...  
Keyword(s):  
Two Phase Flow ◽  
High Viscosity ◽  
Phase Flow ◽  
Liquid Holdup ◽  
Two Phase ◽  
High Viscosity Oil ◽  
Oil Gas

Flow Characteristics of Adiabatic Gas-Liquid Two-Phase Flow in a Horizontal Flat Rectangular Microchannel

2011 ◽  
Author(s):  
Hideo Ide ◽  
Kentaro Satonaka ◽  
Tohru Fukano
Keyword(s):  
Void Fraction ◽  
Slug Flow ◽  
Annular Flow ◽  
Two Phase Flow ◽  
Flow Characteristics ◽  
Flow Patterns ◽  
Phase Flow ◽  
Similar Data ◽  
Two Phase ◽  
The Mean

Experiments were performed to obtain, analyze and clarify the mean void fraction, the mean liquid holdup, and the liquid slug velocity and the air-water two-phase flow patterns in horizontal rectangular microchannels, with the dimensions equal to 1.0 mm width × 0.1 mm depth, and 1.0 mm width × 0.2 mm depth, respectively. The flow patterns such as bubble flow, slug flow and annular flow were observed. The microchannel data showed similar data patterns compared to those in minichannels with the width of 1∼10mm and the depth of 1mm which we had previously reported on. However, in a 1.0 × 0.1 mm microchannel, the mean holdup and the base film thickness in annular flow showed larger values because the effects of liquid viscosity and surface tension on the holdup and void fraction dominate. The remarkable flow characteristics of rivulet flow and the flow with a partial dry out of the channel inner wall were observed in slug flow and annular flow patterns in the microchannel of 0.1 mm depth.

scholarly journals Pressure Signal Analysis for the Characterization of High-Viscosity Two-Phase Flows in Horizontal Pipes

2020 ◽  
Vol 8 (12) ◽  
pp. 1000
Author(s):  
Lizeth Torres ◽  
José Noguera ◽  
José Enrique Guzmán-Vázquez ◽  
Jonathan Hernández ◽  
Marco Sanjuan ◽  
...  
Keyword(s):  
Mass Flow ◽  
Two Phase Flow ◽  
High Viscosity ◽  
Flow Rate Ratio ◽  
Phase Flow ◽  
Two Phase ◽  
Local Flow ◽  
Horizontal Pipes ◽  
Pressure Time ◽  
Mass Flow Rates

We study a high-viscosity two-phase flow through an analysis of the corresponding pressure signals. In particular, we investigate the flow of a glycerin–air mixture moving through a horizontal pipeline with a U-section installed midway along the pipe. Different combinations of liquid and air mass flow rates are experimentally tested. Then, we examine the moments of the statistical distributions obtained from the resulting pressure time series, in order to highlight the significant dynamical traits of the flow. Finally, we propose a novel correlation with two dimensionless parameters: the Euler number and a mass-flow-rate ratio to predict the pressure gradient in high-viscosity two-phase flow. Distinctive variations of the pressure gradients are observed in each section of the pipeline, which suggest that the local flow dynamics must not be disregarded in favor of global considerations.

scholarly journals A Pressure-Drop Model for Oil-Gas Two-Phase Flow in Horizontal Pipes

2021 ◽  
Vol 17 (2) ◽  
pp. 371-383
Author(s):  
Xinke Yang ◽  
Shanzhi Shi ◽  
Hui Zhang ◽  
Yuzhe Yang ◽  
Zilong Liu ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipes ◽  
Oil Gas

scholarly journals Study on the Pressure Drop Variation and Prediction Model of Heavy Oil Gas-Liquid Two-Phase Flow

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-20
Author(s):  
Shanzhi Shi ◽  
Jie Li ◽  
Xinke Yang ◽  
Congping Liu ◽  
Ruiquan Liao ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Heavy Oil ◽  
Total Pressure ◽  
Two Phase Flow ◽  
High Viscosity ◽  
Phase Flow ◽  
Liquid Viscosity ◽  
Two Phase ◽  
New Model ◽  
Oil Gas

To explore the pressure drop variation with the viscosity of heavy oil gas-liquid two-phase flow, experiments with different viscosity gas-liquid two-phase flows are carried out. The experimental results show that the total pressure drop increases with increasing liquid viscosity when the superficial gas and liquid flow rates are the same. The liquid superficial velocity is 0.52 m/s, and the superficial gas velocity is 12 m/s in the vertical and inclined pipes, as there is a negative friction pressure drop when the superficial gas and liquid velocities are small. Additionally, the increased range of the total pressure drop decreases with increasing liquid viscosity. Considering the heavy oil gas-liquid two-phase flow, a prediction model of the pressure drop in high-viscosity liquid-gas two-phase flow is established. The new model is verified by experimental data and compared with existing models. The new model has the smallest error, basically within 15%. Based on the prediction of the wellbore pressure distribution of four wells in the BeiA oilfield, the new model prediction results are closer to the measured results, and the error is the smallest. The new model can be used to predict pressure drops in high-viscosity gas-liquid two-phase flow.

Numerical Simulation of the Transient Development of Slug Flow in Horizontal Pipes

2016 ◽  
Vol 819 ◽  
pp. 300-304 ◽  
Author(s):  
Zahid Ibrahim Al-Hashimy ◽  
Hussain H. Al-Kayiem ◽  
Mohammad Shakir Nasif ◽  
Abdalellah. O. Mohmmed
Keyword(s):  
Flow Regime ◽  
Slug Flow ◽  
Two Phase Flow ◽  
Piping System ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Horizontal Pipes ◽  
Flow Phenomena ◽  
Multi Phase Flow

Slug flow regime in two and multi-phase flow in pipes is a complicated flow phenomena representing challenge in the design of the piping system. In the present work, water/air two phase flow was modeled and simulated as 3 dimensional, transient, and incompressible flow using Volume of Fluid technique in STAR-CCM+ software. The simulation was conducted to predict and evaluate the air-water slug flow in a horizontal pipe with 0.16 m diameter and 7 m long. The superficial velocities for both phases were extracted from Baker chart slug zone. The results were validated against experimental bench marking referenced in Baker chart and the proposed VOF technique shows a good capability in simulating the development of the slug flow regime. This model could be utilized for simulation of various two phase flow regimes.

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