Abstract
The distribution of stable carbon isotopes was investigated in the organic matter, bitumoids, and bitumoid fractions from the rocks of the section of the En-Yakhinskaya superdeep parametric well (8250 m) drilled in northern West Siberia, within the world’s largest gas region. The formation of the isotopic composition of organic matter and bitumoids under the conditions of advanced catagenetic stages (up to AC3) was evaluated. A tendency was established of a decrease in the δ13C value of bitumoids and fractions of various polarity with increasing depth. A relation was reliably detected between the isotopic compositions of carbon from organic matter, bitumoids, and particular bitumoid fractions. The main factors affecting the distribution of carbon isotopes in the organic matter of deep-seated sequences were distinguished. The genesis of bitumoids below the oil window is related to the destruction of organic matter under the conditions of advanced catagenesis resulting in anomalous features in the distribution of carbon isotopes in bitumoids.
Similar content being viewed by others
References
E. M. Galimov, Nature of Biological Isotope Fractionation (Nauka, Moscow, 1981) [in Russian].
E. M. Galimov and L. A. Kodina, Study of Organic Matter and Gasses in Sedimentary Sequences of the World’s Ocean Floor (Nauka, Moscow, 1982) [in Russian].
E. M. Galimov, Carbon Isotopes in Oil-Gas Geology (Nedra, Moscow, 1973) [in Russian].
Reference Book on Oil and Gas Geochemistry, Ed. by S.G. Neruchev (OAO “Nedra”, St. Petersburg, 1998) [in Russian].
E. M. Galimov, Geochemistry of Stable Carbon Isotopes (Nedra, Moscow, 1968) [in Russian].
E. A. Rogozina, V. A. Lobkov, and L. I. Mukovozova, “Carbon Isotope Composition of Organic Matter at Different Stages of Lithogenesis,” in Origin and Formation of Composition of Natural Gases Based on Isotope Geochemical Data (Vses. Nauchno-Issled. Geol. Razved. Inst., Leningrad, 1981), pp. 23–35 [in Russian].
M. G. Frick, “Lithogenesis and Its Role in Biomarker Distribution in Organic Matter of Oil-Gas Source Rocks,” Geokhimiya, No. 8, 863–871 (1997) [Geochem. Int. 35, 758–765 (1997)].
E. M. Galimov and V. B. Polyakov, “On the Thermodynamic Ordering of the Distribution of Carbon Isotopes in Biogenic Geochemical Systems,” Geokhimiya, No. 9, 1232–1240 (1990).
A. E. Kontorovich, V. N. Melenevskii, and I. D. Timoshina, “Modeling of Carbon Isotope Fractionation of Organic Matter during Catagenesis,” in Proceedings of 14th Symposium on Isotope Geochemistry, Moscow, Russia, 1995 (GEOKhI, Moscow, 1995), pp. 114–115 [in Russian].
A. M. Frid and L. A. Bannikova, “Thermal and Oxidation Effect on the Carbon Isotope Composition of Carbon Matter Fraction,” Geokhimiya, No. 6, 771–782 (1990).
S. I. Golyshev, Application of Stable Carbon Isotopes in Geochemical Studies, in Modern Methods of Oil Studies (Reference-Methodical Manual), Ed. by A. I. Bogomolov and L. I. Khotyntseva (Nedra, Leningrad, 1984) [in Russian].
R. Ishiwatari, B. G. Rohrback, and I. R. Kaplan, “Hydrocarbon Generation by Thermal Alteration of Kerogen from Different Sediment,” Am. Ass. Petrol. Geol. Bull. 62(4), 687–692 (1978).
C. E. Redding, M. Schoell, J. C. Monin, and B. Durand, “Hydrogen and Carbon Isotopic Composition in Coals and Kerogen,” in Advacnes in Organic Geochemistry (Pergamon, 1979), pp. 711–723.
K. E. Peters, B. G. Rohrback, and I. R. Kaplan, “Variations of Stable CH-Isotope Composition of Kerogen during the Laboratory Maturation Experiments,” Am. Ass. Petrol. Geol. Bull. 65(3), 501–508 (1981).
M. D. Lewan, “Effects of Thermal Maturation on Stable Organic Carbon Isotopes as Determined by Hydrous Pyrolysis of Woodford Shale,” Geochim. Cosmochim. Acta 47(8), 1471–1479 (1983).
W. J. Stahl, “Carbon and Nitrogen Isotopes in Hydrocarbon Research and Exploration,” Chem. Geol. 20(1/2), 121–149 (1977).
E. M. Galimov, “12C/13C in Kerogen,” in Kerogen, Ed. by B. Durand (Technip, Paris, 1980), pp. 271–299.
E. M. Galimov, “The Causes of the Global Variations of Carbon Isotopic Composition in the Biosphere,” Geokhimiya, No. 8, 787–803 (1999) [Geochem. Int. 37, 699–713 (1999)].
L. A. Kodina and E. M. Galimov, “Formaiton of Carbon Isotope Composition of Organic Matter of ‘Humic’ and ’sapropel’ Types of Marine Deposits,” Geokhimiya, No. 11, 1242–1256 (1984).
E. M. Galimov and M. G. Frick, “Isotope Method of Identification of Oil Source Deposits,” Geokhimiya, No. 10, 1474–1485 (1985).
E. M. Galimov, “Fractionation of Carbon Isotopes on the Way from Living to Fossil Organic Matter,” in Stable Isotopes in the Biosphere, Ed. by E. Wada (Kyoto Univ., Kyoto, 1995), pp. 133–170.
L. C. Price and J. L. Clayton, “Organic Geochemistry of the 9.6 km Bertha Rogers No. 1 Well, Oklahoma,” Org. Geochem. 3, 59–77 (1981).
M. G. Frick, “Genetic Features of the Organic Matter and Bitumoids in the Rocks of the Tyumen Superdeep Well,” in Tyumen Superdeep Well (Interval 0-7502 m): Sceintific Drilling in Russia (KamNIIKIGS, Perm, 1996), Issue 4, pp. 232–245 [in Russian].
B. Tissot and D. Welte, Petroleum Formation and Occurrence (Springer, Berlin-Heidelberg, 1978; Mir, Moscow, 1981).
T. V. Belokon’-Karaseva, S. E. Bashkova, G. L. Belyaeva, Yu. A. Ekhlakov, and V. I. Gorbachev, “Prospects of Oil-Gas Deeply Subsided Deposits of Northern Siberia Based on Superdeep Drilling Data,” Geol. Nefti Gaza, No. 6, 2–9 (2006) [in Russian].
Yu. A. Ekhlakov, A. N. Ugryumov, V. I. Gorbachev, N. K. Mogucheva, and S. S. Sanfirova, “New Development Area of the Terrigenous Triassic in the Yamal-Nenetsk Autonomous District,” Gorn. Vedomosti, No. 12, 16–22 (2007).
L. V. Sirotenko, “Non-Traditional Reservoirs in Sections of Deep and Superdeep Wells,” in Criteria for Estimating Oil and Gas Potential below Economically Explored Depths (KamNIIKIGS, Perm, 2001), Book 2, pp. 217–227 [in Russian].
E. M. Galimov, “Sources and Mechanisms of Formation of Hydrocarbon Gases in Sedimentary Rocks,” Geokhimiya, No. 2, 163–180 (1989).
I. D. Polyakova and G. Ch. Borukaev, “Organic Geochemistry of the Jurassic and Triassic Deposits of the Tyumen Well SG-6 within a Depth Interval of 3987–6424 m,” in Tyumen Superdeep Well (Interval 0-7502 m). Scientific Drilling in Russia (KamNIIKIGS, Perm, 1996), Issue 4, pp. 253–263 [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © M.G. Frick, D.I. Vasyanina, T.V. Karaseva (Belokon’), O.V. Kuznetsova, V.I. Gorbachev, 2010, published in Geokhimiya, 2010, Vol. 48, No. 3, pp. 240–251.
Rights and permissions
About this article
Cite this article
Frick, M.G., Vasyanina, D.I., Karaseva (Belokon’), T.V. et al. Carbon isotope characteristics of organic matter and bitumoids from deep-seated rocks. Geochem. Int. 48, 226–237 (2010). https://doi.org/10.1134/S001670291003002X
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S001670291003002X