Area‐alterable liquid electrode capacitance sensor for water holdup measurement in oil–water two‐phase flow

2021 ◽  
Author(s):  
Yang Yang ◽  
Haihang Hu ◽  
Kai Wang ◽  
Shuai Wang ◽  
Ming Liu ◽  
...  
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Capacitance Sensor ◽  
Two Phase ◽  
Liquid Electrode ◽  
Electrode Capacitance ◽  
Oil Water

Liquid holdup measurement in horizontal oil–water two-phase flow by using concave capacitance sensor

Measurement ◽  
2014 ◽  
Vol 49 ◽  
pp. 153-163 ◽  
Author(s):  
Zhao An ◽  
Jin Ningde ◽  
Zhai Lusheng ◽  
Gao Zhongke
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Capacitance Sensor ◽  
Liquid Holdup ◽  
Two Phase ◽  
Oil Water

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.

Simulation Study of Spiral Electrode Capacitance Sensor for Measuring Concentration of Gas-Solid Two-Phase Flow

2012 ◽  
Vol 508 ◽  
pp. 170-173
Author(s):  
Zhi Chun Wang ◽  
Wen Jing Zhang ◽  
Wen Tao Li
Keyword(s):  
Two Phase Flow ◽  
Natural World ◽  
Structural Parameter ◽  
Phase Flow ◽  
Solid Concentration ◽  
Complex Flow ◽  
Capacitance Sensor ◽  
Two Phase ◽  
Capacitance Transducer ◽  
Electrode Capacitance

Gas-sold two-phase flow is a typical and complex flow form in the natural world and the industrial process. The accurate measurement of the parameters is the key problem for improving the industry control quality and promoting enterprise economic benefit. Three-dimensional finite element simulation of spiral electrodes capacitance sensor was put up by ANSYS in this paper. The results from simulation show that spiral electrode capacitance sensor has an obvious advantage. The sensor has uniform sensing filled, and the capacitance value has nothing to do with flow pattern which is only related to solid concentration change. There is good linear correlation between capacitance value and solid concentration. Relationship graph between capacitance value and solid concentration was obtained by calculated. In addition, with the FEM the qualitative analyses to the effect of each structural parameter of the capacitance transducer on its capability were made. These can provide bases and supports for optimum design of this kind of sensors. Comparing with ECT, it is a simply and easy-implemented method of concentration measurement using spiral electrode capacitance sensor.

Water holdup measurement of oil-water two-phase flow with low velocity using a coaxial capacitance sensor

2017 ◽  
Vol 81 ◽  
pp. 244-255 ◽  
Author(s):  
X. Chen ◽  
Y.F. Han ◽  
Y.Y. Ren ◽  
H.X. Zhang ◽  
H. Zhang ◽  
...  
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Capacitance Sensor ◽  
Low Velocity ◽  
Two Phase ◽  
Oil Water

Measuring Flow Pattern Asymmetry of Oil-Water Two Phase Flows Using Multi-channel Rotating Electric Field Conductance Signals

2018 ◽  
Vol 74 (1) ◽  
pp. 25-41 ◽  
Author(s):  
Yuansheng He ◽  
Yingyu Ren ◽  
Yunfeng Han ◽  
Ningde Jin
Keyword(s):  
Electric Field ◽  
Flow Pattern ◽  
Cross Section ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Time Asymmetry ◽  
Pipe Cross Section ◽  
Multi Scale ◽  
Oil Water

AbstractThe present study is a report on the asymmetry of dispersed oil phase in vertical upward oil-water two phase flow. The multi-channel signals of the rotating electric field conductance sensor with eight electrodes are collected in a 20-mm inner diameter pipe, and typical images of low pattern are captured using a high speed camera. With the multi-channel rotating electric field conductance signals collected at pipe cross section, multi-scale time asymmetry (MSA) and an algorithm of multi-scale first-order difference scatter plot are employed to uncover the fluid dynamics of oil-water two phase flow. The results indicate that MSA can characterise the non-linear behaviours of oil-water two phase flow. Besides, the MSA analysis also beneficial for understanding the underlying inhomogeneous distribution of the flow pattern in different directions at pipe cross section.

Sign in / Sign up

Export Citation Format

Share Document