Measurement of water content of oil-water emulsions under shear conditions

Meiyi Qing; Honglei Zhan; Chao Song; Chunlin Tang; Tianming Zhao; Qing Chen

doi:10.1117/12.3055652

12 December 2024 Measurement of water content of oil-water emulsions under shear conditions

Meiyi Qing, Honglei Zhan, Chao Song, Chunlin Tang, Tianming Zhao, Qing Chen

Proceedings Volume 13439, Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024); 134392B (2024) https://doi.org/10.1117/12.3055652
Event: Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024), 2024, Xiamen, China

Abstract

The water content in stable crude oil emulsions has been widely researched. However, the emulsion in the flowing conditions has higher emulsified water content, which affecting the flow characteristics of oil-water two-phase in gathering lines. This study focusses on exploring the electrical characteristics associated with water content of the flowing emulsions. To describe the impedance characteristics of the flowing emulsions, a RC equivalent circuit model was established basing on the frequency dispersion phenomenon due to interfacial polarization of emulsions. A stirring system with different rotating rates was developed to simulate flowing conditions of the emulsion. Emulsions with varied amount of emulsified water content (0~0.9) were prepared and their impedance spectroscopy were measured with frequency from 50Hz to 1MHz.The experimental results demonstrated that within the observed range, the frequency of interfacial polarization in impedance exhibited a linear relationship with the water content of the crude oil, in strong agreement with the established theoretical model. The principle of linearity can be used to measure the water content of flowing crude oil.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Meiyi Qing, Honglei Zhan, Chao Song, Chunlin Tang, Tianming Zhao, and Qing Chen "Measurement of water content of oil-water emulsions under shear conditions", Proc. SPIE 13439, Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024), 134392B (12 December 2024); https://doi.org/10.1117/12.3055652

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