Characterization of oil/water two-phase flow patterns based on symbolic time series analysis

Author

Ningde, Jin ; Weibo, Li ; Xin, Zhao ; Xingbin, Liu

Author_Institution

Sch. of Electr. Eng. & Autom., Tianjin Univ., China

Volume

3

fYear

2004

fDate

18-20 May 2004

Firstpage

2302

Abstract

The flow patterns of oil/water two-phase flow in vertical upward pipes have been characterized by the analysis of symbolic time series based on the conductance fluctuating signals. It is shown that the temporal irreversibility and chi-square statistics have little changes with oil-in-water flow pattern variations for flow conditions of 61% ≤ K_W ≤ 91% and are sensitive to transitional flow pattern variations of K_W = 51%. The characterization of flow patterns is strongly supported by the flow map of our previous study based on Kinematic wave theory. The symbolic time series analysis can be a new tool for flow pattern identification in vertical upward oil/water two-phase flow pipes.

Keywords

entropy; flow measurement; oil technology; pipe flow; pipelines; time series; two-phase flow; chi-square statistics; conductance fluctuating signals; data acquisition; flow pattern identification; oil-water two-phase flow patterns; quantitative statistics; symbolic time series analysis; temporal irreversibility; transitional flow pattern variations; vertical upward pipes; Chaos; Data acquisition; Data analysis; Electrodes; Fluid flow measurement; Pattern analysis; Petroleum; Production; Statistics; Time series analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE

ISSN

1091-5281

Print_ISBN

0-7803-8248-X

Type

conf

DOI

10.1109/IMTC.2004.1351553

Filename

1351553