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.

Pressure Drop for Oil-Gas Two-Phase Flow Through Straight Horizontal Pipe

2007 ◽  
Author(s):  
Wenhong Liu ◽  
Liejin Guo ◽  
Ximin Zhang ◽  
Kai Lin ◽  
Long Yang ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Flow Through ◽  
Oil Gas

New Revised Correlation to Predict Pressure Drop for Oil-Gas Two-Phase Flow Through Horizontal Pipe

2007 ◽  
Author(s):  
L. Wenhong ◽  
G. Liejin ◽  
Z. Ximin ◽  
L. Kai ◽  
Y. Long ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Flow Through ◽  
Oil Gas

High-Viscosity Liquid/Gas Flow Pattern Transitions in Upward Vertical Pipe Flow

SPE Journal ◽  
2020 ◽  
Vol 25 (03) ◽  
pp. 1155-1173
Author(s):  
Eissa Al-Safran ◽  
Mohammad Ghasemi ◽  
Feras Al-Ruhaimani
Keyword(s):  
Flow Pattern ◽  
Two Phase Flow ◽  
Bubble Diameter ◽  
High Viscosity ◽  
Transition Model ◽  
Phase Flow ◽  
Liquid Viscosity ◽  
Two Phase ◽  
Flow Pattern Transition ◽  
Transition Models

Summary High-viscosity liquid two-phase upward vertical flow in wells and risers presents a new challenge for predicting pressure gradient and liquid holdup due to the poor understanding and prediction of flow pattern. The objective of this study is to investigate the effect of liquid viscosity on two-phase flow pattern in vertical pipe flow. Further objective is to develop new/improve existing mechanistic flow-pattern transition models for high-viscosity liquid two-phase-flow vertical pipes. High-viscosity liquid flow pattern two-phase flow data were collected from open literature, against which existing flow-pattern transition models were evaluated to identify discrepancies and potential improvements. The evaluation revealed that existing flow transition models do not capture the effect of liquid viscosity, resulting in poor prediction. Therefore, two bubble flow (BL)/dispersed bubble flow (DB) pattern transitions are proposed in this study for two different ranges of liquid viscosity. The first proposed transition model modifies Brodkey's critical bubble diameter (Brodkey 1967) by including liquid viscosity, which is applicable for liquid viscosity up to 100 mPa·s. The second model, which is applicable for liquid viscosities above 100 mPa·s, proposes a new critical bubble diameter on the basis of Galileo's dimensionless number. Furthermore, the existing bubbly/intermittent flow (INT) transition model on the basis of a critical gas void fraction of 0.25 (Taitel et al. 1980) is modified to account for liquid viscosity. For the INT/annular flow (AN) transition, the Wallis transition model (Wallis 1969) was evaluated and found to be able to predict the high-viscosity liquid flow pattern data more accurately than the existing models. A validation study of the proposed transition models against the entire high-viscosity liquid experimental data set revealed a significant improvement with an average error of 22.6%. Specifically, the model over-performed existing models in BL/INT and INT/AN pattern transitions.

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 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

Curvature Effect Radius Analysis in a Two Flow Leak Pipeline

2016 ◽  
Vol 366 ◽  
pp. 118-125
Author(s):  
Lígia Rafaely Barbosa Sarmento ◽  
E.S. Barbosa ◽  
B.E. Leite ◽  
Daniela Passos Simões de Almeida Tavares ◽  
Cidronia Janiclebia de O. Buriti ◽  
...  
Keyword(s):  
Pressure Drop ◽  
Total Pressure ◽  
Two Phase Flow ◽  
Continuous Phase ◽  
Environmental Damage ◽  
Particle Model ◽  
Curvature Radius ◽  
Phase Flow ◽  
Two Phase ◽  
Oil Transportation

The oil industry has sought to minimize the environmental impact from mining activities and oil transportation. Oil transportation by pipelines is subject to failures and leaks which cause financial losses and environmental damage, often irreparable. Currently, the study of leaks in pipelines has attracted the attention of many researchers. The aim of this study is to evaluate the influence of the curved curvature radius connection in pipeline leakage. We used a mathematical model of multiphase flow to describe the two-phase flow, based on the particle model. Oil is the continuous phase while water a dispersed phase. To model this effect we used the turbulence model SST. All simulations were carried out using the Ansys CFX ® commercial code. Results of the total pressure and pressure drop are presented and discussed. The results confirm the influence of the bending radius of curved connection on the behavior of the total pressure and the total pressure drop in two-phase flow in pipelines with and without leakage.

Investigation of two-phase flow pattern, liquid holdup and pressure drop in viscous oil–gas flow

2014 ◽  
Vol 67 ◽  
pp. 37-51 ◽  
Author(s):  
Hatef A. Khaledi ◽  
Ivar Eskerud Smith ◽  
Tor Erling Unander ◽  
Jan Nossen
Keyword(s):  
Pressure Drop ◽  
Flow Pattern ◽  
Gas Flow ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Liquid Holdup ◽  
Two Phase ◽  
Viscous 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

Study on the Influence of the Heaving Condition on the Pressure Drop Characteristics of the Two-Phase Flow in the Circular Tube

2018 ◽  
Author(s):  
Tianzhou Xie ◽  
Jianjun Xu ◽  
Bingde Chen ◽  
Wei Bao
Keyword(s):  
Pressure Drop ◽  
Total Pressure ◽  
Two Phase Flow ◽  
Static Condition ◽  
Calculation Model ◽  
Phase Flow ◽  
Transient Pressure ◽  
Two Phase ◽  
Total Pressure Drop ◽  
Friction Pressure Drop

The experimental study on the pressure drop characteristics of the gas-liquid two-phase flow under heaving condition is carried out. The influence of the heaving condition on the transient and time-averaged two-phase pressure drop is obtained. On this basis, the calculation model of two-phase transient pressure drop under heaving condition is constructed, which is in good agreement with the experimental results. According to the experimental data and the results of the model calculation, the influence of heaving condition on the pressure drop components is analyzed. It is found that the transient total pressure drop is fluctuating periodically, while the time-averaged value is nearly the same as that under static condition. Further analysis shows that the friction pressure drop and the gravity pressure drop are basically the same under heaving condition. The fluctuation of additional pressure drop introduced by heaving motion is the reason for the periodic fluctuation of the total pressure drop.

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