Characteristics of nitrogen-containing organic compounds in heavy oils of Usinskoye field
A distribution of nitrogen-organic compounds in the highly resinous oils of Usink field was studied. It is shown that the oils studied are richer in nitrogen compounds including strong bases than the major mass of currently produced oils. The specific feature of the Usinsk oils is a higher content of low molecular nitrogen-containing bases. No evident differences in the qualitative composition of these compounds have been found for the Usink oils. At the same time, these oils are characterized by a higher content of polycycloaromatic nitrogen-containing structures.Table 3, ref. 11.