A.G. Sotnikova, K.O. Sobornov, V.G. Pashkov, A.V. Baranova, S.M. Nikitina, A.N. Shaposhnikova, T.A. Karpyuk
Bol’shesyninsky depression: new ideas about structure and petroleum potential according to regional seismic data
DOI 10.47148/0016-7894-2023-4-161-175
Key words: Urals Foredeep; Bol’shesyninsky depression; regional seismic operations; Pechora-Kolvinsky aulacogen; petroleum exploration; fold-and-thrust deformations.
For citation: Sotnikova A.G., Sobornov K.O., Pashkov V.G., Baranova A.V., Nikitina S.M., Shaposhnikova A.N., Karpyuk T.A. Bol’shesyninsky depression: new ideas about structure and petroleum potential according to regional seismic data. Geologiya nefti i gaza. 2023;(4):161–175. DOI: 10.41748 /0016-7894-2023-4-161-175. In Russ.
The results of regional seismic studies along 32-РС survey line allowed considerable refining the concept of geological structure and petroleum potential of the Bol’shesyninsky depression. They also made it possible to characterise main stages of structural evolution of the region taking into account that it was formed on the south-eastern extension of the Pechora-Kolvinsky aulacogen (the Timan-Pechora Plate). The results of paleotectonic and seismic facies analyses allowed delineating zones of stratigraphic and lithologically screened trap development, as well as their combinations, in Palaeozoic carbonate sequences of the northern regions of the Bol’shesyninsky depression. The promising trend of future geological exploration activities aimed at building up the hydrocarbon raw materials base is delineation of the island shallow-water zone within the Upper Devonian section, which is bordered by organic buildups, together with the accompanying clinoform sequences. Commercial oil bearing capacity of the Denisovsky trough is related to exploration targets of this type. New structural interpretation suggests the presence of exploration targets associated with high-amplitude folds in the foreland parts of thrust plates. Because of inharmonious nature of folding, many of the similar structures are not expressed in near-surface deposits, which makes their identification difficult. Such traps are expected in the regionally oil bearing Devonian-Lower Permian deposits; they are the obvious targets for geological exploration in the Bol’shesyninsky depression.
Alena G. Sotnikova ORCiD
Candidate of Geological and Mineralogical Sciences,
Head of Department
All-Russian Research
geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
email: sotnikova@vnigni.ru
Konstantin O. Sobornov ORCiD
Doctor of Geological and Mineralogical Sciences,
Chief researcher
All-Russian Research
Geological Oil institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: sobornov@vnigni.ru
Vladimir G.Pashkov
Doctor of Geological and Mineralogical Sciences,
Chief researcher
All-Russian Research
Geological Oil institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
email: pashkov@vnigni.ru
Anna V. Baranova
Head of Group
All-Russian Research
Geological Oil institute,
36, shosse Entuziastov, Moscow, 105118, Russia
email: baranova@vnigni.ru
Svetlana M. Nikitina
Senior Geologist
GeoPraim
10, pr. Stroitelei, Ukhta,169300, Russia
email: s.nikitina@geopraime.ru
Anzhela N. Shaposhnikova
Senior Geophysicist
GeoPraim
10, pr. Stroitelei, Ukhta,169300, Russia
email: a.shaposhnikova@geopraime.ru
Tamara A. Kapryuk
Head of Group
GeoPraim
10, pr. Stroitelei, Ukhta,169300, Russia
email: t.karpyuk@geopraime.ru
1. Belonin M.D., Budanov G.F., Danilevskii S.A., Prishchepa O.M., Teplov E.L. Timano-Pechorskaya provintsiya: geologicheskoe stroenie, neftegazonosnost’ i perspektivy osvoeniya [Timan-Pechora Province: geological structure, hydrocarbon potential, and future development trends]. Moscow: Izdatel’stvo «Nedra»; 2004. 396 p. In Russ.
2. Sobornov K.O. Petroleum potential of the squeezed diapir’ zones of the Timan-Pechora basin. Mineral resources of Russia. Economics & management. 2023;181(2):29–37. In Russ.
3. Gee D.G., Bogolepova O.K., Lorenz H. The Timanide, Caledonide and Uralide orogens in the Eurasian high Arctic, and relationships to the palaeo-continents Laurentia, Baltica and Siberia. In: European Lithosphere Dynamics. 2006. pp. 507–520.
4. Sobornov K.O. Regional structure, salt diapirism and petroleum potential of the offshore part of the Timan-Pechora basin. Scientific journal of the Russian gas society. 2023;37(1):16–29. DOI 10.55557/2412-6497-2023-1-16-29. In Russ.
5. Atlas geologicheskikh kart Timano-Pechorskogo sedimentatsionnogo basseina [Atlas of geological maps, Timan-Pechora Sedimentation Basin]. In: N.I. Nikonova, ed. Ukhta: Regional’nyi Dom pechati; 2002. 132 p. In Russ.
6. Kotik I.S., Saetgaraev A.D., Kotik O.S., Bushnev D.A., Valyaeva O.V., Savelyeva A.A. Petroleum source rocks and hydrocarbon potential of Lower Palaeozoic deposits in Laisky swell of Denisovsky trough, Timan-Pechora Petroleum Province (based on Kerlaiskaya-1 well data). Geologiya nefti i gaza. 2023;(1):53–66. DOI: 10.31087/0016-7894-2023-1-53-66. In Russ.
7. Nikonov N.I., Kuranov A.V. Prospetive directions of oil and gas exploration in the Pre-Ural foredeep. Aktual’nye problemy nefti i gaza. 2017;19(4):1–7. DOI: 10.29222/ipng.2078-5712.2017-19.art4. In Russ.
8. Fortunatova N.K., Shvets-Teneta-Gurii A.G., Bushueva M.A., Kanev A.S., Luchina S.A., Avdeeva A.A., Volodina A.G., Kholmyanskaya N.Yu. Methodology of lithologically screened and lithological oil and gas traps prediction in Upper Devonian-Tournaisian and Lower Permian carbonate plays of eastern Volga-Urals Petroleum Province. Geologiya nefti i gaza. 2019;(3):23–38. DOI: 10.41748/0016-7894-2019-3-23-38. In Russ.
9. Bazhenova T.K., Bogoslovskii S.A. Rezul’taty raschetnogo modelirovaniya nefte- i gazoobrazovaniya v progibakh Timano-Pechorskogo basseina [Results of oil and gas generation computer modelling in downwarps of Timan-Pechora Basin]. In: Doklad na nauchno-prakticheskoi konferentsii «Kompleksnoe izuchenie i osvoenie syr’evoi bazy nefti i gaza severa evropeiskoi chasti Rossii». St. Petersburg: VNIGRI; 2012. In Russ.
10. Grunis E.B., Rostovshchikov V.B., Sbitneva Ya.S., Kolokolova I.V., Akhmetzhanova Z.M. New ideas of the Urals Foredeep architecture in the context of oil and gas potential. Geologiya nefti i gaza. 2021;(1):7–18. DOI: 10.31087/0016-7894-2021-1-7-18. In Russ.