Experimental study on the choice of transducer resonance frequency in downhole flow measurement

In the process of downhole layered oil recovery, it is necessary to measure the liquid production of each layer in real time, so as to control the oil production plan of each layer in real time according to the oil production plan. Need to use ultrasonic time difference flowmeter to measure the flow...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-04, Vol.1894 (1), p.12057
Main Authors: Huiqin, Jia, Bai, Yongxin, Ruirong, Dang, Liu, Jingjing, Wang, Chengyun
Format: Article
Language:English
Subjects:
Attenuation
Flow measurement
Impurities
Oil recovery
Petroleum production
Physics
Real time
Resonance
Ultrasonic transducers
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Summary:In the process of downhole layered oil recovery, it is necessary to measure the liquid production of each layer in real time, so as to control the oil production plan of each layer in real time according to the oil production plan. Need to use ultrasonic time difference flowmeter to measure the flow in the process of injection and production. Due to the complex and changeable downhole environment, impurities such as sand and bubbles often appear in the process of downhole flow measurement. How to choose a suitable ultrasonic transducer frequency is of great significance to the flow measurement results. At present, common transducer resonance frequencies on the market mainly include 1MHz, 500KHz, 180KHz, and 40KHz. In this paper, the attenuation characteristics of the resonant signal of the transducer in the medium containing impurities are studied through simulation and experiment. The experimental data shows that in the stratified oil recovery system, the receiving effect of the system is best when the transducer frequency is 1MHz.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1894/1/012057