Abstract
Peculiarities of heteroatomic components content and distribution in resins have been studied by the example of heavy oils of Tatarstan and Samara region fields. Peculiarities of structural and group composition of extracted fractions from resinsare shown. Resin fractionation allowed to determine the degree of influence of the heterorganic component content on the asphaltene flocculation. Kinetic studies using UV spectroscopy showed that the maximum efficiency of inhibition of asphaltene deposition for the high-molecular-weight organo-nitrogen bases was detected, which is superior to the original petroleum resins.
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