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2016/2
Thermal cracking of regular and irregular isoprenanes C20-C40
Technical sciences

Authors: Maxim V. GIRUTS graduated from Gubkin Russian State University of Oil and Gas in 2004. He is Doctor of Chemical Sciences, Associate Professor of the E-mail: moxixh@yahoo.com
Alexandra R. POSHIBAEVA graduated from Lomonosov Moscow State University in 2012. She is PhD (Chemical Sciences), Assistant Lecturer of the Department of Organic Chemistry & Petroleum Chemistryat Gubkin Russian State University (National Research University) of Oil and Gas. She is author of 20 scientific publications.
Е-mail: stroeva-poshibaeva@yandex.ru
Olga A. STOKOLOS graduated from Gubkin Russian State Academy of Oil and Gas in 1994. She is PhD (Chemical Sciences), Associate Professor of the Department of Organic Chemistry & Petroleum Chemistry at Gubkin Russian State University (National Research University) of Oil and Gas. She is specialist in organic chemistry and chemistry of petroleum hydrocarbons, author of more than 30 scientific publications. Е-mail: stokolos.o@gubkin.ru
Guram N. GORDADZE graduated from Georgian Polytechnic Institute in 1963. He is Doctor of Geological Sciences and Candidate of Chemical Sciences, Professor of the Department of Organic Chemistry & Petroleum Chemistry at Gubkin Russian State University (National Research University) of Oil and Gas. He is specialist in chemistry and geochemistry of petroleum hydrocarbons and author of more than 350 scientific publications.
E-mail: gordadze@rambler.ru

Abstract: Thermal cracking of regular and irregular isoprenanes С20–С40 was carried out, followed by the research of the distribution patterns of regular, irregular and pseudoregular isoprenanes C10–C20. It was found that no rupture of terminal methyl, ethyl and isopropyl groups occurs as a result of thermal cracking of phytane, krotsetane, squalane and likopane. The simultaneous rupture of C-C bonds at tertiary carbon atoms in the molecule isoprenanes doesn’t occur either. It was shown that the value of the ratio of genetic pristane/phytane indicator, which is used in the petroleum geochemistry for correlations of oil-oil and oil-extracted organic matter systems should be treated with caution

Index UDK: 553.98:543.51:547.912

Keywords: thermal cracking; regular, irregular and pseudo-regular izoprenanes

Bibliography:
1. Petrov A.A. Uglevodorody nefti [Petroleum hydrocarbons]. Moscow, 1984, 263 p. (in Russian).
2. Tissot B., Welte D. Petroleum Formation and Occurrence. Springer-Verlag, Berlin, 1978.
3. Kalvin M. Himicheskaya evolucia [Chemical evolution]. Moscow, 1971, 240 р. (in Russian).
4. Gordadze G.N. Termoliz organicheskogo veshhestva v neftegazopoiskovoj geohimii [Thermolysis of organic matter in the oil and gas geochemistry]. Moscow, 2002, 336 p. (in Russian).
5. Gordadze G.N. Uglevodorody v neftyanoi geohimii. Teoria I practika [The hydrocarbons in the oil geochemistry. Theory and practice]. Moscow, 2015, 559 р. (in Russian).
6. Stroeva A.R., Giruts M.V., Koshelev V.N., Gordadze G.N. Modeling of Formation of Petroleum Biomarker Hydrocarbons by Thermolysis and Thermocatalysis of Bacterium Biomass. Petroleum Chemistry, 2014, vol. 54, no. 5, p. 347–354.
7. Giruts M.V., Gordadze G.N., Stroeva A.R., Koshelev V.N. On the question of formation of petroleum hydrocarbons from bacteria biomass. Trudy RGU nefti i gasa imeny I.M. Gubkina [Gubkin Russian State University of Oil and Gas Proceedings], 2014, no. 2 (275), p. 82-93 (in Russian).
8. Okunova M.V., Giruts M.V., Erdnieva O.G., Koshelev V.N., Gordadze G.N. The formation of petroleum biomarker hydrocarbons from possible oxygen-containing precursors. Petroleum Chemistry, 2009, t. 49, no. 3, p. 207-217.

2012/1
Comparative characteristics of Jurassic cretaceous oils of Kalmykia using triamantans
Oil and gas processing, chemistry of oil and gas

Authors: Maxim V. GIRUTS was born in 1981, graduated from the Gubkin State University Oil and Gas in 2004. Lecturer, Deputy Head of the Department of Organic Chemistry and Petroleum Chemistry, Gubkin State University Oil and Gas. Author scientific publications in the field of oil chemistry and organic geochemistry. E-mail: moxixh@yahoo.com
Chingiz M. BADMAEV was born in 1985, graduated from the Kalmyk State University in 2008, Laboratory of Organic Chemistry and Petroleum Chemistry, Gubkin State University Oil and Gas. Author of 13 scientific papers in the field of oil chemistry. E-mail: chingizbadmaev@mail.ru
Olga An. STOKOLOS graduated from the Gubkin State University Oil and Gas in. Lecturer, deputy dean of the Faculty of Chemical Technology and Ecology, Gubkin State University Oil and Gas. Author of scientific publications in the field of oil chemistry. E-mail: stokolos@gubkin.ru
Guram N. GORDADZE was born in 1940, graduated from Georgian Technical University in 1965. He is Professor of the Department of Organic Chemistry and Petroleum Chemistry of Gubkin Russian State University of Oil and Gas. Аuthor of over 300 scientific papers in the field of oil chemistry and organic geochemistry. E-mail: gordadze@rambler.ru

Abstract: The method of gas chromatography-mass spectrometry was applied to study the distribution of hydrocarbons of diamond-like structure — the triamantans C18-C19 -in oils and condensates of Kalmykia, occurring in the Cretaceous and Jurassic sediments. It is shown that extraneous peaks present in the mass chromatograms of paraffin-cyclo-paraffinic petroleum fractions with 240 and 239 m/z do not interfere with the identification and calculation of triamantans and calculation of their relative concentrations. We found that the Jurassic and Cretaceous oils are possible to distinguish between by relative distribution of C18 triamantan.

Index UDK: 547. 919

Keywords: triamantans, gas chromatography, mass spectrometry of oils, hydrocarbons, diamond-like structure of oil

Bibliography:

2010/2
Applying ir-spectrometry to study oils
Oil and gas processing, chemistry of oil and gas

Authors: Lyudmila V. IVANOVA was born in 1961, graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1975. She is assistant professor of the Department of Organic Chemistry and Chemistry of Oil at Gubkin Russian State University of Oil and Gas, author of 37 publications. E-mail: ivanova.l@gubkin.ru
Vladimir N. KOSHELEV was born in 1953, graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1983. He is Vice Rector for Petroleum Engineering Education, head of the Department of Organic Chemistry and Chemistry of Oil at Gubkin Russian State University of Oil and Gas. He is the author of over 253 publications in the field of organic chemistry and chemistry of oil. E-mail koshelev.v@gubkin.ru
Egor A. BUROV was born in 1987. He is studying for master’s degree in “Chemical Engineering for Oil Production” at Gubkin Russian State University of Oil and Gas, published 2 works in the field of oil studies. E-mail: burovegor48@mail.ru
Olga A. STOKOLOS was born in 1971, graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1975. She is assistant professor of the Department of Organic Chemistry and Chemistry of Oil at Gubkin Russian State University of Oil and Gas, author of 8 publications in the field of chemistry of oil. E-mail: stokolos.o@gubkin.ru

Abstract: IR-spectrometry is a most informative and sensitive method of studying the composition and structure of organic compounds. Oil systems being multi-component, IR-spectrometric study reduces to determining different groups of compounds in the composition of oil and their interrelationship. Oils obtained from different fields of Russia and Kazakhstan were studied using IR-Fourier - spectrometry. Hydrocarbon type content and spectral factors were calculated

Index UDK: 543.42:543.544.45: 665.61

Keywords: IR-spectrometry, hydrocarbon type content, hydrocarbon spectral factors

Bibliography: