Effect of Reaction Conditions on ClO₂-Oxidation Demulsification for Oil-Water Transition Layer in Settling Tank

Abstract:

In order to meet the need of separating oil from water in the settling tank of the oilfield, ClO2-oxidation demulsification for oil-water transition layer in settling tank is introduced. In this paper, effects of reaction conditions on ClO2-oxidation demulsification were studied. The results show that the reaction temperature, reaction time and PH value have a heavy effect on the dehydration rate of the oil-water transition layer. With the increasing of the reaction time, the dehydration rate largely rises, and it can reach 84.18% and keep steady when the reaction is in 4 hours. With going the temperature up, the dehydration rate increases in a nonlinear way, and it can reach 85.23% at the temperature of 55°C. By decreasing the PH value, the dehydration rate significantly rises, and the maximum dehydration rate of 84.18% was achieved when adding 0.5 vol. % of the acid. The chemistry was discussed based on the principles and experiments. By demonstrating the experimental data and discussion, we can effectively control the oxidation performance of chlorine dioxide, which is very meaningful for oilfield on the aspect of stable production of petroleum.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 3196-3199
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.3196
• Online since: February 2013
• Authors: Dan Dan Yuan, Bao Hui Wang, Hai Xia Sheng, Hong Jun Wu, Xin Sui, Jing Dong, Guang Qing Feng
• Keywords: Chlorine Dioxide, Dehydration, Demulsification, Oil, Oil-Water Transition Layer

References

[1] Maiqian Nie. Journal of xi' an University of Architecture &Technology, 1997, (03) . In Chinese.

[2] Sangdun Sun, Guancheng Jiang. Journal of China Petroleum University (natural science section), 2010, 34(5) . In Chinese.

[3] Ma Diankun, the option of crude oil demulsifier. Journal of petroleum technology, 1985, (02).

[4] Xia Chen, Jiexun Li. Journal of field surface engineering of oil and gas, 2002, (5) In Chinese.

[5] Guixi Liu, Lianjun Liu, Zaifeng Liu. J petroleum machinery, 1995, (11) : 26. In Chinese.

[6] Wolf N O. Use of microwave radiation in separation emulsions and dispersions of hydrocarbons and water. US: 4582629, 1986-04-23.

[7] Fang C S, Lai P M C. Microwave heating and separation of water in oil emulsions. Journal of Microwave Power and Electromagnetic Energy, 1995, 30(1).

DOI: 10.1080/08327823.1995.11688257