Study the rheological properties of waxy oil with modified pour point depressants for the South Turgai oil field in Kazakhstan
Kazakh-British Technical University JSC, Chemical Engineering Department, Tole bi 59, Almaty, Republic of Kazakhstan
2 Al-Farabi, Kazakh National University, Faculty of Chemistry and Chemical Technology, Department of Analytical, Colloidal Chemistry and Technology of Rare Elements, Al-Farabi avenue 71, Almaty, Republic of Kazakhstan
Accepted: 14 January 2019
This work describes the performance of poly(ethylene-co-vinyl acetate) (EVA) copolymer and modified poly(ethylene-co-vinyl acetate) (EVA-M) as pour point reducer. Commercially available EVA copolymer modified with sodium hydroxide in methanol. Partially hydrolyzed EVA was obtained and Fourier Transform InfraRed (FTIR) analysis of the modified EVA was recorded. The modified and unmodified EVA was used to crude oil of South Turgai, Kazakhstan, in order to improve the flowability of the crude oil. According to the rheological behavior of oils in the South Turgai, the findings showed that modified EVA lowered the dynamic viscosity greater compared to unmodified EVA and heat treatment. Dynamic viscosities and yield points of different oils with various temperatures with using EVA and EVA-M were studied systematically. Finally microphotograph of crystal structures two oils with using EVA and EVA-M, under same conditions, were compared and discussed.
© S.S. Kozhabekov et al., published by IFP Energies nouvelles, 2019
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