Investigation of Gas/Oil/Water Distribution Based on Electrical Capacitance and Microwave Tomography

Investigation of Gas/Oil/Water Distribution Based on Electrical Capacitance and Microwave Tomography

Simulation

Capacitance

Calibration

electrical capacitance tomography

Microwave theory and techniques

Signal processing algorithms

data fusion

Dielectric constant

Image quality

microwave tomography

multiphase flows

The extraction and transportation of crude oil is a typical multiphase flow process. In order to visualize the oil/gas/water distribution, simulation and static tests are carried out in this paper. Electrical capacitance tomography (ECT) and microwave tomography (MWT) carried out static imaging tests of oil-gas two-phase flow and oil-water two-phase flow. Landweber iteration is used as the image reconstruction algorithm of ECT. The simulation results show that the normalized capacitance model, the iteration number and the step length have a certain influence on the ECT image reconstruction. Static tests show that ECT and MWT have a certain complementarity for oil/gas/water distribution. For oil-water flow, the image quality of MWT is better than that of ECT, and for oil-gas flow, the image quality of ECT is better than that of MWT. For a specific flow pattern, MWT image data can be used as the initial value of the ECT image reconstruction algorithm to further improve the accuracy of the ECT image.

21-29

2021 5th International Conference on Imaging, Signal Processing and Communications (ICISPC)

2021

Y. Lin

Y. Xu

H. Wang

conferencePaper

10.1109/ICISPC53419.2021.00012