Simulation and Experimental Studies on the Influencing Factors of a Thermal Flowmeter with Constant Temperature Difference

ZHANG Yifei; WEI Yong; YU Houquan; CHEN Qiang; LIU Guoquan; ZHANG Xue

doi:10.11911/syztjs.2021023

Volume 49 Issue 2

Apr. 2021

Turn off MathJax

Article Contents

Abstract

References

Petroleum Drilling Techniques > 2021 > 49(2): 121-126. > DOI: 10.11911/syztjs.2021023

ZHANG Yifei, WEI Yong, YU Houquan, CHEN Qiang, LIU Guoquan, ZHANG Xue. Simulation and Experimental Studies on the Influencing Factors of a Thermal Flowmeter with Constant Temperature Difference[J]. Petroleum Drilling Techniques, 2021, 49(2): 121-126. DOI: 10.11911/syztjs.2021023

Citation:

PDF (1060 KB)

Simulation and Experimental Studies on the Influencing Factors of a Thermal Flowmeter with Constant Temperature Difference

1.
Electronics & Information School, Yangtze University, Jingzhou, Hubei, 434023, China
2.
China Petroleum Logging Co. Ltd., Xi’an, Shaanxi, 710077, China

More Information

Received Date: November 01, 2020
Revised Date: January 25, 2021
Available Online: February 26, 2021

Graphical Abstract

Abstract

Abstract

Due to the fact that the thermal flowmeter with constant temperature difference brings large errors when measuring downhole flow in low flow-rate, the influence of temperature and pressure was studied. According to the relationship between the electric power of the flowmeter heater and the measured flow rate, the influence of temperature on the physical parameters of liquid water was analyzed, and the change curve of the heat transfer power of the flowmeter and flow rate at different temperatures was simulated numerically. An experimental platform with adjustable water temperature and flow rate was built on that basis, and the relationship between the power of the flowmeter and flow rate at 25–40 °C under constant pressure was thereby analyzed, revealing that power of the flowmeter heater increases monotonically with temperature. In terms of theoretical analysis, a 500 m increase in the well depth leads to an error of 2.2 m³/d when the flowmeter is in the depth from 0 to 2 000 m; while the error is 0.6 m³/d when it is in the depth from 2 000 to 4 000 m. The results showed that output power of the thermal flowmeter with constant temperature difference will increase with the increase of well depth (wellbore temperature, pressure change), resulting in measurement errors, which provides a theoretical basis for the correction and effective application of the flowmeter measurement results.
- thermal flowmeter with constant temperature difference,
- flow measurement,
- temperature,
- pressure,
- numerical simulation,
- laboratory test

FullText(HTML)

References (12)

References

[1]	汪余景,翟军勇. 基于恒温差的热式空气流量计[J]. 仪表技术与传感器,2017(6):41–43. doi: 10.3969/j.issn.1002-1841.2017.06.011 WANG Yujing, ZHAI Junyong. Thermal air flow meter based on constant temperature difference[J]. Instrument Technique and Sensor, 2017(6): 41–43. doi: 10.3969/j.issn.1002-1841.2017.06.011
[2]	朱小会,袁玉霞,吴紫君. 基于ARM的热式空气流量计的设计[J]. 仪表技术与传感器,2019(10):54–56, 60. doi: 10.3969/j.issn.1002-1841.2019.10.013 ZHU Xiaohui, YUAN Yuxia, WU Zijun. Design of thermal air flowmeter based on ARM[J]. Instrument Technique and Sensor, 2019(10): 54–56, 60. doi: 10.3969/j.issn.1002-1841.2019.10.013
[3]	宋纯高,刘晓磊,王延军,等. 井下热式流量计设计与实验研究[J]. 石油仪器,2014,28(3):10–12. SONG Chungao, LIU Xiaolei, WANG Yanjun, et al. Design and experimental study of downhole thermal flowmeter[J]. Petroleum Instruments, 2014, 28(3): 10–12.
[4]	姜兆宇,杨韵桐,刘兴斌,等. 热式质量流量计测量井下液相流量的探索研究[J]. 自动化技术与应用,2014,33(10):75–77. JIANG Zhaoyu, YANG Yuntong, LIU Xingbin, et al. Exploration and study of downhole thermal mass flow measurement of liquid flow[J]. Techniques of Automation & Applications, 2014, 33(10): 75–77.
[5]	汪栋良,余厚全,杨旭辉,等. 井下恒功率热式流量计设计与实现[J]. 石油管材与仪器,2018,4(2):20–23. WANG Dongliang, YU Houquan, YANG Xuhui, et al. Design and implementation of downhole constant power thermal flowmeter[J]. Petroleum Tubular Goods & Instruments, 2018, 4(2): 20–23.
[6]	张世荣．热式气体质量流量测量及补偿算法研究[D]．武汉: 华中科技大学, 2007． ZHANG Shirong. Research on thermal gas mass flowmeter and compensation arithmetics[D]. Wuhan: Huazhong University of Science and Technology, 2007.
[7]	顾宇,叶寒生,冯超,等. 一种恒功率热式气体流量计温度补偿实现[J]. 仪表技术与传感器,2015(10):38–39, 42. doi: 10.3969/j.issn.1002-1841.2015.10.012 GU Yu, YE Hansheng, FENG Chao, et al. Temperature compensation for constant power thermal gas flowmeter[J]. Instrument Technique and Sensor, 2015(10): 38–39, 42. doi: 10.3969/j.issn.1002-1841.2015.10.012
[8]	KRAMERS H A. Heat transfer from spheres to flowing media[J]. Physica, 1946, 12(2/3): 61–80.
[9]	罗晶,陈平. 热式质量流量计测量电路设计[J]. 仪表技术与传感器,2004(10):29–30. doi: 10.3969/j.issn.1002-1841.2004.10.010 LUO Jing, CHEN Ping. Measurement circuit design of thermal mass flowmeter[J]. Instrument Technique and Sensor, 2004(10): 29–30. doi: 10.3969/j.issn.1002-1841.2004.10.010
[10]	W 瓦格纳, A 克鲁泽．水和蒸汽的性质[M]．项红卫, 译. 北京: 科学出版社, 2003: 262-280． WAGNER W, KRUSE A. Properties of water and steam[M]. Translated by XIANG Hongwei. Beijing: Science Press, 2003: 262-280.
[11]	魏勇,余厚全,戴家才,等. 基于CPW的油水两相流持水率检测方法研究[J]. 仪器仪表学报,2017,38(6):1506–1515. doi: 10.3969/j.issn.0254-3087.2017.06.023 WEI Yong, YU Houquan, DAI Jiacai, et al. Water holdup measurement of oil-water two-phase flow based on CPW[J]. Chinese Journal of Scientific Instrument, 2017, 38(6): 1506–1515. doi: 10.3969/j.issn.0254-3087.2017.06.023
[12]	WEI Yong, YU Houquan, CHEN Qiang, et al. A novel conical spiral transmission line sensor-array water holdup detection tool achieving full scale and low error measurement[J]. Sensors, 2019, 19(19): 4140. doi: 10.3390/s19194140

Cited By

Get Citation

PDF

XML

Article Metrics

Article views (592) PDF downloads (66)

Simulation and Experimental Studies on the Influencing Factors of a Thermal Flowmeter with Constant Temperature Difference

Abstract

References

Catalog

Article Metrics

Related

Simulation and Experimental Studies on the Influencing Factors of a Thermal Flowmeter with Constant Temperature Difference

Abstract

References

Catalog

Article Metrics

Related

Export File

Citation

Format

Content