Heat flow, thermal history of the source Lower Jurassic Togur suite and hydrocarbon presence in the Bakchar mezodepression (South-East of West Siberia)
The poorly studied Bakchar mezodepression which is similar in geological structure to the industrially oil-and-gas bearing Nyurol and Ust-Tym megadepressions of the south-east of Western Siberia is a potentially productive object for conducting predictive exploratory studies on the Lower Jurassic and pre-Jurassic reservoirs of hard-to-recover oil. The purpose of the research is to identify and map the catagenetic generation sources of oil generation in the Lower Jurassic Togur oil source suite, to evaluate the generation density, to predict the oil-and-gas potential of the Lower Jurassic and pre-Jurassic deposits. Paleotemperature modeling was carried out in cross sections of 30 deep wells. The modeling is based on solving the heat conduction equation of a horizontally layered solid with a moving upper boundary, using the original «TeploDialog» computer technology. A schematic map of the deep heat flow density was constructed for the Bakchar mezodepression and framing structures, and catagenetic generation sources of the Togur oil were mapped. The appearance of generation sources is correlated with Alb-Cenomanian, the maximum paleotemperatures were reached 24 million years ago, when the generation sources cover almost the entire distribution area of the Togur suite. The generation sources of Togur oil «work» during almost 92 million years until now. Express-evaluation of the oil generation density identified potentially productive zones for deposits searching in the Lower Jurassic and pre-Jurassic sections. It is a local zone on the Parabel mega nose and a wide strip encompassing the central and northwestern zones of the Bakchar mezodepression.
Full Text:PDF (Русский)
Bogachev, S.F. (1987). Gravity exploration in complex with geological and seismic exploration of Nyurol'skiy depression in connection with oil and gas prospecting in the Paleozoic sediments: Candidate’s thesis. Tomsk: Ed. of Tomsk Polytechnic Institute, 225 p. (in Russian).
Duchkov, A.D., Sokolova, L.S., &Ayunov, D.E. (2013). Electronic Geothermal Atlas of Siberia and Far East. Collection of materials of the International Conference «Interexpo GEO-Siberia-2013», 3, 153―157.
Isaev, V.I. (2002). Forcasting parent masses and zones of oil-and-gas accumulation by results of geodensity and paleotemperature modelling. Geofizicheskiy zhurnal, 24(2), 60―70 (in Russian).
Isaev, V.I., Isaeva, O.S., Lobova, G.A., Starostenko, V.I., & Fomin, A.N. (2016). Express zoning of the parent suite on density of generated oil resources (by the example of Nyurolka megadepression). Izvestiya Tomskogo politekhnicheskogo universiteta. Inzhiniring georesursov, 327(3), 23―37 (in Russian).
Isaev, V.I., Lobova, G.A., Korzhov, Yu.V., Kuzina, M.Ya., Kudryashova, L.K. & Sungurova, O.G. (2014). Strategy and basis of technologies for hydrocarbon exploration in the pre-Jurassic basement of Western Siberia. Tomsk: Tomsk Polytechnic University Publ. house, 112 p. (in Russian).
Isaev, V.I., Lobova, G.A., Fomin, A.N., Bulatov, V.I., Kuz'menkov, S.G., Galieva, M.F., & Krutenko, D.S. (2019). Heat flow and oil and gas potential (the Yamal peninsula, Tomsk Region). Georesources, 21(3), 125―135 (in Russian).
Kontorovich, V.A. (2002). Tectonics and oil and gas potential of the Mesozoic-Cenozoic sediments of the Western Siberia southeastern regions. Novosibirsk: Publ. House of the SB RAS, 253 p. (in Russian).
Kostyreva, E.A., Moskvin, B.I., & Yan, P.A. (2014). Geochemistry of organic matter and oil generation potential of the Lower Jurassic Togur formation (south-east of Western Siberia). Neftegazovya geologia. Teoria i praktika, 9(1). http://www.ngtp.ru/rub/2014/13_2014.html (in Russian).
Kurchikov, A.R., & Stavitskiy, B.P. (1981). Heat flow within the West Siberian Plate. Trudy ZapSibNIGNI, 51, 11―14 (in Russian).
Lobova, G.A., Isaev, V.I., Kuz'menkov, S.G., Luneva, T.E., & Osipova, E.N. (2018). Oil-and-gas reservoirs of weathering crusts and Paleozoic basement in the southeast of Western Siberia (forecasting of hard-to-recover reserves). Geofizicheskiy zhurnal, 40(4), 73―106. https://doi.org/10.24028/gzh.0203-3100.v40i4.2018.140611 (in Russian).
Lobova, G.A., Luneva, T.E., Isaev, V.I., Korzhov, Yu.V., Galieva, M.F., Krutenko, D.S. The Heat flow, thermal history of the source Lower Jurassic Togurskaya suite and oil-and-gas potential of the Paleozoic of the Koltogor mezodepression (southern segment of the Koltogor-Urengoy paleorift). Geofizicheskiy zhurnal, 41(5), 128―155. https://doi.org/10.24028/gzh.0203-3100.v41i5.2019.183640 (in Russian).
Forecast of scientific and technological development of the sectors of the Fuel and Energy Complex of Russia for the period up to 2035. (2016). Retrieved from https://minenergo.gov.ru/node/6366 (in Russian).
Trofimuk, A.A. (1997). Forty years of fighting for the development of oil-and-gas industry in Siberia. Novosibirsk: Publ. House of the SB RAS, 396 p. (in Russian)
Khristoforova, N.N., Khristoforov, A.V., & Bergemann, M.A. (2008). Analysis of geothermal maps and prospects of oil-and-gas potential of deep sediments. Georesources, 26(3), 10―12 (in Russian).
Fomin, A.N. (2011). Catagenesis of organic matter and oil-and-gas of the Mesozoic and Paleozoic deposits of the Western Siberian megabasin. Novosibirsk: Ed. of the Institute of Petroleum Geology and Geophysics, Siberian Branch of the RAS, 331 p. (in Russian).
Isaev, V.I., Iskorkina, A.A., Lobova, G.A., Starostenko, V.I., Tikhotskii, S.A., & Fomin, A.N. (2018). Mesozoic-Cenozoic Climate and Neotectonic Events as Factors in Reconstructing the Thermal History of the Source-Rock Bazhenov Formation, Arctic Region, West Siberia, by the Example of the Yamal Peninsula. Izvestiya, Physics of the Solid Earth, 54(2), 310―329. https://doi.org/10.1134/S1069351318020064.
Kutas, R.I., & Kobolev, V.P. (2019). The thermal regime of the southern margin East-European craton. IOP Conference Series: Earth and Environmental Science, 2nd International Geothermal Conference, GEOHEAT2018 4—7 September 2018, Petropavlovsk-Kamchatsky, Russian Federation, 249. https://doi.org/10.1088/1755-1315/249/1/012034.
Starostenko, V.I., Kutas, R.I., Shuman, V.N., & Legostaeva, O.V. (2006). Generalization of the Rayleigh―Tikhonov stationary geothermal problem for a horizontal layer. Izvestiya, Physics of the Solid Earth, 12(42), 1044―1050. https://doi.org/10.1134/S1069351306120081.
- There are currently no refbacks.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Geofizicheskiy Zhurnal is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.