Open AccessInfluence of Physicochemical Methods of Treatment on Structural And Mechanical Properties of High-Viscosity Oils of Udmurtia
Author(s) -
Л. В. Иванова,
Vojtěch Miller,
В. Н. Кошелев,
D. V. Repin
Publication year - 2020
Publication title -
tehnologii nefti i gaza
Language(s) - English
Resource type - Journals
ISSN - 1815-2600
DOI - 10.32935/1815-2600-2020-130-5-26-31
Subject(s) - rheology , viscosity , dilution , materials science , solvent , chemical engineering , hydrocarbon , viscosity index , chemistry , thermodynamics , organic chemistry , composite material , base oil , physics , engineering , scanning electron microscope
The group composition, physicochemical and viscosity-temperature properties of paraffinic high-resinous high-viscosity and high-viscosity oils of Udmurtia deposits with structural-mechanical properties are investigated. It was established that the destruction energy of the supramolecular structure formed during cooling for the oil of the Mishkinsky field is 43.9 kJ/m3 , for the oil of the Kiengop field – 12.6 kJ/m3 . The use of physicochemical methods (heat treatment and dilution of a mixed composition with a hydrocarbon solvent) for regulating the rheological characteristics of oils can significantly reduce the structure of the oil disperse system, which corresponds to a fracture energy of not more than 1 kJ/m3. It was found that the relaxation of the structural and mechanical properties of the oil disperse system after its preliminary heat treatment proceeds slowly.