Title :
Model-based image reconstruction algorithm for measurement of multiphase distributions
Author :
Li, Yi ; Yang, Wuqiang ; Tsamakis, Dimitrios ; Wu, Zhipeng ; Lenn, Chris ; Xie, Chenggang ; Huang, Songming ; Cutler, Annette
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK
Abstract :
This paper presents a model-based image reconstruction algorithm for the measurement of multiphase distributions, in particular the thickness of liquid layer of annular distribution and the water-to-liquid ratio (WLR) of oil-continuous flows. A software package based on a finite element method (FEM) has been developed. The parameters of the simulated distribution are updated to minimize the discrepancies between the calculated and measured capacitances. To verify the algorithm, an impedance analyzer (HP4192) was used to measure capacitances from an 8-electrode ECT sensor with different thickness of the solids or liquid layer and different WLR. This algorithm has been applied for the measurement of gas-oil-water oil-continuous flows with WLR ≤ 30%.
Keywords :
capacitance measurement; finite element analysis; flow visualisation; image reconstruction; physics computing; software packages; two-phase flow; FEM; WLR; annular distribution; finite element method; gas-oil-water oil-continuous flows; impedance analyzer; model-based image reconstruction algorithm; multiphase distribution measurement; oil-continuous flows; software package; Algorithm design and analysis; Capacitance measurement; Capacitive sensors; Electrical capacitance tomography; Finite element methods; Image reconstruction; Impedance measurement; Particle measurements; Software packages; Thickness measurement; electrical capacitance tomography; gas-oil flows; model-based algorithm; oil-continuous; optimisation;
Conference_Titel :
Imaging Systems and Techniques (IST), 2010 IEEE International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
978-1-4244-6492-0
DOI :
10.1109/IST.2010.5548520
