测井技术2018，Vol.42Issue(2)：140-144,5.DOI:10.16489/j.issn.1004-1338.2018.02.003
持水率对热式流量计测量影响的理论分析
Theoretical Analysis on Effect of Water Holdup on Thermal Flowmeter Measurement
汪栋良 1余厚全 1杨旭辉 1秦民君 2刘国权 2陈强2
作者信息
- 1. 长江大学电子信息学院,湖北荆州434023
- 2. 中国石油集团测井有限公司,陕西西安710077
- 折叠
摘要
Abstract
Constant power thermal flowmeter has become an option for flow detection of low-yielding oil wells due to its great characteristics of low-flow detection.However,the water holdup influence of the oil-water two-phase flow on its measurement has hampered its application.To solve this problem,this paper introduces the measurement principle of thermal flowmeter,establishes the relationship between the water-holdup of oil-water two-phase flow and the main physical properties of the fluid,and uses MATLAB to numerically simulate the relationship between the measurement results of thermal flowmeter and flow rate of oil-water two-phase flow in different water holdup.The results from numerical simulation and experiment show that the output voltage of thermal flowmeter decreases monotonously with the increase of w ater holdup under the condition of same flow rate.T herefore,in order to obtain the actual flow rate,the results of the thermal flow meter must be corrected by the water holdup.关键词
生产测井/热式流量计/持水率/油水两相流Key words
production logging/thermal flowmeter/water holdup/oil-water two-phase flow分类
天文与地球科学引用本文复制引用
汪栋良,余厚全,杨旭辉,秦民君,刘国权,陈强..持水率对热式流量计测量影响的理论分析[J].测井技术,2018,42(2):140-144,5.
