Testing for Nonlinearity in Dynamic Characteristics of Vertical Upward Oil-Gas-Water Three-phase Bubble and Slug Flows

朱雷; 金宁德; 高忠科; 杜萌; 王振亚

doi:10.1016/S1004-9541(12)60412-1

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Testing for Nonlinearity in Dynamic Characteristics of Vertical Upward Oil-Gas-Water Three-phase Bubble and Slug Flows

Updated：2026-01-06

- Testing for Nonlinearity in Dynamic Characteristics of Vertical Upward Oil-Gas-Water Three-phase Bubble and Slug Flows
- Chinese Journal of Chemical Engineering Vol. 20, Issue 5, Pages: 870-882(2012)
- Affiliations：
  
  School of Electrical Engineering & Automation, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(12)60412-1
  CLC：
- Published：2012
- Accepted：
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ZHU Lei, JIN Ningde, GAO Zhongke, DU Meng, WANG Zhenya. Testing for Nonlinearity in Dynamic Characteristics of Vertical Upward Oil-Gas-Water Three-phase Bubble and Slug Flows[J]. Chin.J.Chem.Eng., 2012, 20(5): 870-882.
DOI：

ZHU Lei, JIN Ningde, GAO Zhongke, DU Meng, WANG Zhenya. Testing for Nonlinearity in Dynamic Characteristics of Vertical Upward Oil-Gas-Water Three-phase Bubble and Slug Flows[J]. Chin.J.Chem.Eng., 2012, 20(5): 870-882. DOI： 10.1016/S1004-9541(12)60412-1.

摘要

Abstract

Based on the conductance fluctuation signals measured from vertical upward oil-gas-water three-phase flow experiment

time frequency representation and surrogate data method were used to investigate dynamical characteristics of oil-in-water type bubble and slug flows. The results indicate that oil-in-water type bubble flow will turn to deterministic motion with the increase of oil phase fraction

and superficial gas velocity

under fixed flowrate of oil-water mixture

mix

. The dynamics of oil-in-water type slug flow becomes more complex with the increase of

under fixed flowrate of oil-water mixture. The change of

leads to irregular influence on the dynamics of slug flow. These interesting findings suggest that the surrogate data method can be a faithful tool for characterizing dynamic characteristics of oil-in-water type bubble and slug flows.

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