Upgrading of heavy oil in supercritical water (SCW) was analyzed by a comprehensive
analysis of GC, GC–MS, NMR, and SEM–EDX with the aid of electron paramagnetic …

Temperature dependencies of electron paramagnetic resonance spectra of intrinsic
paramagnetic vanadyl complexes and dynamical viscosity for two heavy crude oils and …

We present a detailed study of electron/nuclear interaction in a specific crude oil by
continuous-wave and pulsed EPR, electron–nuclear double resonance (ENDOR) at W-band …

Air injection is a promising method for enhanced oil recovery (EOR) in both conventional
and unconventional oil sources. It is widely accepted that oxidation reactions between oil …

Heavy and extra-heavy oil are generating considerable interest in terms of replacing light oil
role in the next few years. Nowadays, various enhanced oil recovery (EOR) methods are …

The electron paramagnetic resonance (EPR) technique is used to evaluate the temperature
dependence of the aggregation processes in asphaltenes of heavy and extra-heavy crude …

An approach to investigate self-assembly of oil disperse systems based on high-field
electron nuclear double resonance has been suggested. As exemplified by asphaltenes, the …

Petroleum asphaltenes are considered the most irritating components of various oil systems,
complicating the extraction, transportation, and processing of hydrocarbons. Despite the fact …

The behavior and the structural properties of organic radical species (ORs) in their native
hydrocarbon environment as a function of temperature were investigated by electron …

In this work, a comparative study of the properties of polyethylene composites filled with the
residue of solvent deasphalting of tar and asphaltenes isolated from it was carried out …