Design and Experiment of a New Type of High Frequency Electric Dehydration Device

doi:10.11885/j.issn.1674-5086.2019.10.15.04

Abstract

Abstract: With the continuous growth of China's economy and the increasing demand for energy, oil supply has become a strategic issue affecting the country's economic development. The amount of offshore oil exploitation is also increasing. However, the crude oil produced by offshore platforms generally has a high water content, and even some crude oils can have a water content of more than 70%. It needs to be dewatered before being transported and refining. Aiming to solve the problems of limited dehydration treatment capacity and low dehydration efficiency of crude oil on offshore platforms, we make a study on the mechanism of high-frequency and high-voltage electric fields on oil and water. Using electric field simulation and experimental research methods, a novel non-uniform electric field model and high-frequency electro-dehydration dynamic experiment device is proposed that adopts a new-type different-diameter cylindrical electrode to construct an uneven electric field. At the same time, a dynamic experiment device is used to circulate the electric dehydration process of crude oil to realize the electric dehydration treatment of high water-containing crude oil. Experiments show that the electric dehydration efficiency of this dynamic electric dehydration device is higher than that of the device used currently with 0.7% water cut in the oil.

Key words: high frequency electric off, electric dehydration, dynamic electric off device, high water cut crude oil

CLC Number:

TE624.1

LU Dayan, ZOU Wanqin, LIANG Haibo, YANG Hai. Design and Experiment of a New Type of High Frequency Electric Dehydration Device[J]. 西南石油大学学报(自然科学版), 2020, 42(5): 161-169.

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