DocumentCode :
507348
Title :
Identification of Oil-Gas-Water Three-phase Flow Patterns in Vertical Upward Pipe Based on Multi-scale Entropy
Author :
Zhenya, Wang ; Ningde, Jin ; Yanbo, Zong ; Guibo, Zheng ; Tao, Wang
Author_Institution :
Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin, China
Volume :
5
fYear :
2009
fDate :
14-16 Aug. 2009
Firstpage :
192
Lastpage :
196
Abstract :
In order to study oil-gas-liquid three-phase flow regularity in oil well, the vertical upward three-phase flow dynamic experiment with low velocity was carried out in a large diameter (125 mm i.d.) flow loop using the combination sensors of VMEA and mini-conductance probe array and six three-phase flow patterns were defined. VMEA sensor conductance fluctuating signals of five flow patterns with water as the continuous liquid were acquired. And then the multi-scale entropy processing and analysis of them are conducted to describe the dynamics characteristics of the different flow patterns. The study result indicates that the multi-scale entropy reveals the nonlinear dynamics characteristics of flow patterns in different scales and Rate of MSE as a characteristic representing approximately constant increasing rate of sample entropy at low scales sensitively indicates the variation of flow patterns and can act as the efficient criterion of three-phase flow patterns identification. And it is helpful to understand the dynamics mechanism of three-phase flow pattern evolution.
Keywords :
entropy; multiphase flow; pipe flow; pipelines; probes; VMEA sensor conductance; miniconductance probe array; multiscale entropy processing; oil well production; oil-gas-water three-phase flow; three-phase flow patterns; vertical upward pipe; Biomedical measurements; Entropy; Fluctuations; Fluid flow measurement; Fluidization; Pattern analysis; Petroleum; Sensor arrays; Sensor phenomena and characterization; Signal analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Fuzzy Systems and Knowledge Discovery, 2009. FSKD '09. Sixth International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-0-7695-3735-1
Type :
conf
DOI :
10.1109/FSKD.2009.249
Filename :
5360633
Link To Document :
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