scholarly journals Novel Downhole Electromagnetic Flowmeter for Oil-Water Two-Phase Flow in High-Water-Cut Oil-Producing Wells

Sensors ◽  
2016 ◽  
Vol 16 (10) ◽  
pp. 1703 ◽  
Author(s):  
Yanjun Wang ◽  
Haoyu Li ◽  
Xingbin Liu ◽  
Yuhui Zhang ◽  
Ronghua Xie ◽  
...  
Keyword(s):  
Two Phase Flow ◽  
Electromagnetic Flowmeter ◽  
High Water ◽  
Phase Flow ◽  
Two Phase ◽  
Oil Water ◽  
High Water Cut ◽  
Water Cut

Ultrasonic method for measuring water holdup of low velocity and high-water-cut oil-water two-phase flow

2016 ◽  
Vol 13 (1) ◽  
pp. 179-193 ◽  
Author(s):  
An Zhao ◽  
Yun-Feng Han ◽  
Ying-Yu Ren ◽  
Lu-Sheng Zhai ◽  
Ning-De in
Keyword(s):  
Two Phase Flow ◽  
Ultrasonic Method ◽  
High Water ◽  
Phase Flow ◽  
Low Velocity ◽  
Two Phase ◽  
Oil Water ◽  
High Water Cut ◽  
Water Cut

Characterising Dynamic Instability in High Water-Cut Oil-Water Flows Using High-Resolution Microwave Sensor Signals

2018 ◽  
Vol 73 (6) ◽  
pp. 485-499
Author(s):  
Weixin Liu ◽  
Ningde Jin ◽  
Yunfeng Han ◽  
Jing Ma
Keyword(s):  
High Resolution ◽  
Two Phase Flow ◽  
Dynamic Instability ◽  
High Water ◽  
Phase Flow ◽  
Two Phase ◽  
Multi Scale ◽  
Oil Water ◽  
High Water Cut ◽  
Water Cut

AbstractIn the present study, multi-scale entropy algorithm was used to characterise the complex flow phenomena of turbulent droplets in high water-cut oil-water two-phase flow. First, we compared multi-scale weighted permutation entropy (MWPE), multi-scale approximate entropy (MAE), multi-scale sample entropy (MSE) and multi-scale complexity measure (MCM) for typical nonlinear systems. The results show that MWPE presents satisfied variability with scale and anti-noise ability. Accordingly, we conducted an experiment of vertical upward oil-water two-phase flow with high water-cut and collected the signals of a high-resolution microwave resonant sensor, based on which two indexes, the entropy rate and mean value of MWPE, were extracted. Besides, the effects of total flow rate and water-cut on these two indexes were analysed. Our researches show that MWPE is an effective method to uncover the dynamic instability of oil-water two-phase flow with high water-cut.

Integration of impedance measurements with acoustic measurements for accurate two phase flow metering in case of high water-cut

2010 ◽  
Vol 21 (1) ◽  
pp. 8-19 ◽  
Author(s):  
Mahmoud Meribout ◽  
Nabeel Al-Rawahi ◽  
Ahmed Al-Naamany ◽  
Ali Al-Bimani ◽  
Khamis Al-Busaidi ◽  
...  
Keyword(s):  
Two Phase Flow ◽  
High Water ◽  
Phase Flow ◽  
Acoustic Measurements ◽  
Two Phase ◽  
Impedance Measurements ◽  
Flow Metering ◽  
High Water Cut ◽  
Water Cut

scholarly journals The Influence on Response of a Combined Capacitance Sensor in Horizontal Oil–Water Two-Phase Flow

2019 ◽  
Vol 9 (2) ◽  
pp. 346 ◽  
Author(s):  
Lei Li ◽  
Lingfu Kong ◽  
Beibei Xie ◽  
Xin Fang ◽  
Weihang Kong ◽  
...  
Keyword(s):  
High Speed ◽  
Two Phase Flow ◽  
Flow Patterns ◽  
Phase Flow ◽  
Capacitance Sensor ◽  
Two Phase ◽  
Horizontal Pipe ◽  
Response Characteristics ◽  
Oil Water ◽  
Water Cut

In the process of production logging interpretation, a water cut is one of the key factors to obtain the oil phase content in the oil well. In order to measure the water cut of the horizontal oil–water two-phase flow with low yield, the response characteristics of the combined capacitance sensor (CCS) are investigated under different flow patterns. Firstly, the measuring principles of coaxial, cylindrical, and CCS are introduced in detail. Then, according to the different flow pattern conditions of the horizontal oil–water two-phase flow, the response characteristics of the CCS are simulated and analyzed using the finite element method. Additionally, compared with the other two sensors, the advantages of the CCS are verified. Finally, the temperature and pressure calibration experiments are carried out on the CCS. The horizontal oil–water two-phase flow patterns in a low yield liquid level are divided in detail with a high-speed camera. Dynamic experiments are carried out in a horizontal pipe with an inner diameter of 125 mm on the horizontal oil–water two-phase flow experimental equipment. The simulation and experimental results show that the CCS has good response characteristics under different working conditions.

scholarly journals Inverse Problem Models of Oil-Water Two-Phase Flow Based on Buckley-Leverett Theory

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Rui Huang ◽  
Xiaodong Wu ◽  
Ruihe Wang ◽  
Hui Li
Keyword(s):  
Inverse Problem ◽  
Relative Permeability ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Form Expression ◽  
Two Phase ◽  
Problem Model ◽  
Natural Logarithm ◽  
Oil Water ◽  
Water Cut

Based on Buckley-Leverett theory, one inverse problem model of the oil-water relative permeability was modeled and proved when the oil-water relative permeability equations obey the exponential form expression, and under the condition of the formation permeability that natural logarithm distribution always obey normal distribution, the other inverse problem model on the formation permeability was proved. These inverse problem models have been assumed in up-scaling cases to achieve the equations by minimization of objective function different between calculation water cut and real water cut, which can provide a reference for researching oil-water two-phase flow theory and reservoir numerical simulation technology.

Water cut measurement of oil–water two-phase flow in the resonant cavity sensor based on analytical field solution method

Measurement ◽  
2021 ◽  
Vol 174 ◽  
pp. 109078
Author(s):  
Yiguang Yang ◽  
Ying Xu ◽  
Chao Yuan ◽  
Jinghan Wang ◽  
Haitao Wu ◽  
...  
Keyword(s):  
Solution Method ◽  
Two Phase Flow ◽  
Resonant Cavity ◽  
Phase Flow ◽  
Two Phase ◽  
Field Solution ◽  
Oil Water ◽  
Water Cut
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