%0 Journal Article %T Defining dispersion in dark oil medium %A Pivovarova, N.. %A Akishina, E.. %K petroleum dispersed systems, complex structural unit, intermolecular interactions, dispersed phase, average particle diameter, optical density, photoelectrocolorimetric method %J Oil and gas technologies and environmental safety %D 2023 %N %P 6 %I Astrakhan State Technical University