Authors: Lyudmila V. IVANOVA graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1983. She is Associate Professor of the Department of Organic Chemistry and Petroleum Chemistry at Gubkin Russian State University of Oil and Gas, author 52 scientific works in the field of petroleum chemistry. E-mail: ivanova.l@gubkin.ru
Vladimir N. KOSHELEV was born in 1957, graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1975. He is First Vice-Rector for Academic Affairs, head of the Department of Organic Chemistry and Petroleum Chemistry at Gubkin Russian State University of Oil and Gas, author of more than 280 scientific papers in the field of organic chemistry and petroleum chemistry. E-mail: koshelev.v@gubkin.ru
Alexey A. VASECHKIN was born in 1986, graduated from Gubkin Russian State University of Oil and Gas in 2008. He is postgraduate student of the Department of Organic Chemistry and Petroleum Chemistry at Gubkin Russian State University of Oil and Gas. He is author of 8 scientific papers and publications in the field of oil study. E-mail: vasexhkin.aleksey@yandex.ru
Yegor A. BUROV was born in 1987, graduated from the Master Program of Gubkin Russian State University of Oil and Gas in 2010. He is now postgraduate student of the Department of Organic Chemistry and Petroleum Chemistry at Gubkin Russian State University of Oil and Gas, author of 8 scientific papers in the field of oil study. E-mail: burov_egor48@mail.ru
Olga V. PRIMEROVA is a student the Faculty of Chemical Engineering at Gubkin Russian State University of Oil and Gas. E-mail: feekys@gmail.com
Abstract: The paper analyzes the influence of the chemical composition of a group of four oils of Volgograd and Orenburg regions on their low temperature properties: freezing point and the tendency to form asphaltene-resin-paraffin deposits. It is shown that when studying the group composition it is important to consider not only the quantitative content of individual groups of compounds: paraffin-naphthenic and aromatic hydrocarbons, resins and asphaltenes in the oil, but also their mutual relationship, which can be determined on the basis of spectral coefficients. We found that deposits may grow in the presence of formation water. This is due to the amount of polar components-resins and asphaltenes - in the studied oil.
Index UDK: 622.276
Keywords: asphaltene-resin-paraffin deposits (ARPD), structural-group composition, physical and chemical properties of oil, IR spectra, spectral coefficients of oil, water cut
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