Geodynamic framework of oil and gas occurrence in the Sea of Okhotsk region
The Sea of Okhotsk region is the most informati ve object for identi fi cati on of deep oil and gas occurrence settings and mapping of endodrainage systems — the deep channels for fl uid transportati on, which control the scale of fl uid fl ows that in turn determine the energy of geodynamic processes of naft idogenesis. This is caused primarily by the high geological and geophysical explorati on maturity, dense seismic explorati on coverage, and recent increase in informativity and depth of 2D and 3D seismic data, gravimetry and magnetometry materials, deep seismic and magnetotelluric sounding, and seismic tomography imaging. The largest deep channels serve as sub‑verti cal ways of fluid offt ake from the major fluid‑carrying line of the region, namely, Kuril‑Kamchatka Slab; its structure was recently mapped in the course of seismic tomography imaging. Acti ve crust‑mantle medium works in the area of endodrainage function, which consists of geoblocks and blocks with various geodynamic, mainly rift‑related nature. The Sea of Okhotsk geodynamic province isolated within the Kuril‑Kamchatka Slab functi on in Cenozoic and composed of autonomous crust‑mantle geoblocks, is represented in Cenozoic secti on by rift‑related sedimentary basins with high petroleum potential, which are clustered in the major rift‑related megasystems, they are: North‑West‑Central and South‑Okhotsk. The following Cenozoic geoblock and block structures are the parts of them: North‑Okhotsk‑cis‑Okhotsk (Tauisky‑Gizhiginsky system), Shantarsky, North‑Okhotsky and West‑Kamchatka;
West‑Okhotsky — Deryuginsksy and Hokkaido‑Kuril structural basins and Golyginsky trough. The Tatarsky and cis‑Pacifi c rift‑related systems are delineated separately. All the mega‑systems and systems are combined into the Sea of Okhotsk petroleum province, but they represent the autonomous petroleum sub‑provinces and potenti ally oil and gas bearing sub‑provinces. The following factors play a major role in oil and gas occurrence: 1) existence of fluid‑saturated permeable drainage systems for high‑energy fluid flows supply from the depth, which are associated with the lithosphere extensional structures, including those strike‑slip in the zones of ultra‑deep fluid‑fault systems; 2) development of natural oil and gas pools overlapped by reliable impermeable beds.
Key words: Sea of Okhotsk region; geodynamics and oil & gas occurrence; endodrainage systems; fluids; fold structure; rift -related sedimentary basins; pull-apart tectonics.
For citation: Kharakhinov V.V. Geodynamic framework of oil and gas occurrence in the Sea of Okhotsk region. Geologiya nefti i gaza. 2018;(2):25–39. DOI: 10.31087/0016‑7894‑2018‑2‑25‑39.
1. Veselov O.V., Gretskaya E.V, Il'ev A.E., Kononov V.E., Kochergin E.V. et. al. Tectonic zoning and hydrocarbon potential of the Sea of Okhotsk. Moscow: Nauka, 2000. – 130 p.
2. Tectonic map of the Sea of Okhotsk region. G.A. Avdeiko, N.A. Bogdanov, V.S. Rozhdestvenskii, N.I. Filatova, V.V. Kharakhinov et. al. 1:2 500 000. Moscow: Roskartografiya, 2000.
3. Geology and mineral resources of Russia: in 6 volumes. Vol. 5. Arctic and Far East seas. Book 2. Far East seas, their continental and island framing. In: I.S. Gramberg, V.L. Ivanov, Yu.E. Pogrebitskii eds. St. Petersburg: Izdatelstvo VSEGEI, 2005. 303 p.
4. Kharakhinov V.V., Tuezov I.K., Baboshina V.A., Tereshchenkov A.A. et al. Structure and dynamics of lithosphere and astenosphere of the Sea of Okhotsk region. Moscow: Natsional'nyi geofizicheskii komitet RAN, 1996. – 335 p.
5. Gottikh R.P., Pisotskii B.I., Galuev V.I., Kaplan S.A. Deep structural and tectonic inhomogeneities of Earth’s crust and possible processes associated with oil and gas generation and accumulation (geochemical aspect). Otechestvennaya geologiya. 2012;(2):3–14.
6. Starostenko V.I., Lukin A.E., Tsvetkova T.A., Zaets L.N., Dontsov V.V., Savinykh Yu.V. On the participation of super-deep fluids in naphthyogenesis (according to the study of the unique oil deposit of the White Tiger). Geofizicheskiy zhurnal. 2011;33(4):3–32.
7. Lukin A.E., Pikovskii Yu.I. On the role of deep and ultra-deep fluids in oil and gas generation. Geologicheskii zhurnal. 2004;(2):21–33.
8. Lukin A.E. On the origin of oil and gas (geo-synergetic concept of natural hydrocarbon-generated systems). Geologicheskii zhurnal.1999;(1):30–42.
9. Vartanyan G.S. Fluidosphere and endo-drainage systems of the Earth as geological evolution drivers. Otechestvennaya geologiya. 2000;(6):14–22.
10. Sakulina T.S., Kalenich A.P., Atakov A.I., Tihonova I.M., Krupnova N.A., Pyzhjanova T.M. Geological model of the Оkhotsk sea region according to basic profiles I-OM and 2DW-M. Razvedka i ohrana nedr. 2011;(10):11–17.
11. Koulakov I.Yu., Dobretsov N.L., Bushenkova N.A., Yakovlev A.V. Slab shape in subduction zones beneath the Kurile-Kamchatka and aleutian arcs based on regional tomography results. Russian Geology and Geophysics. 2011;52(6):830–851. DOI: 10.1016/j.rgg.2011.05.008
12. Bijward H., Spakman W., Engdahl E.R. Closing the gap between regional and global travel time tomography. J. Geophys. Res. 1998;103:30,055–30,078.
13. Dobretsov N.L., Koulakov I.Yu, Litasov K.D., Kukarina E.V. An integrate model of subduction: Contributions from geology, experimental petrology, and seismic tomography. Russian Geology and Geophysics. 2015;56(1–2):13–38. DOI: 10.1016/j.rgg.2015.01.002.
14. Letnikov F.A. Fluid mechanism of destruction of the earth's continental crust and formation of sedimentary oil- and gas-bearing basins Doklady Earth Sciences. 2005;401(2):200–202.
15. Letnikov F.A., Dorogokupets P.I. On the role of Earth’s core ultra-deep fluid systems in endogenous geological processes. Doklady Akademii nauk. 2001; 378(4):535–537.
16. Rodkin M.V. Role of deep fluid behaviour in geodynamics and seismotectonics. Moscow: Natsional'nyi geofizicheskii komitet RAN, 1993.193 p.
17. Sokolov B.A., Starostin V.I. Fluid-dynamic systems of ore formation and oil generation. Vestnik Moskovskogo un-ta. Seriya 4: Geologiya. 1998;(5):3–9.
18. Zharov A.E., Kirillova G.L., Margulis L.S., Chuiko L.S., Kudel'kin V.V., Varnavskii V.G., Gagaev V.N. Geology, geodynamics, and petroleum potential of sedimentary basins in the Gulf of Tartary. Vladivostok: Izd-vo DVO RAN, 2004. 220 p.
19. Kharakhinov V.V. Petroleum geology of the Sakhalin Region. Moscow: Nauchnyi mir, 2010. 276 p.
20. Varnavskii V.G., Zharov A.E., Kirillova G.L., Krovushkina O.A. et. al. Geology and oil and gas occurrence in the Okhotsk-Shantarsk sedimentary basin. Vladivostok: Izd-vo DVO RAN, 2002. 148 p.
21. Tuezov I.K. Geothermal structure of lithosphere and astenosphere of the Asian-Pacific joint zone and adjacent parts of Asia and Pacific Ocean. Vladivostok: Izd-vo DVO AN SSSR, 1990. 107 p.
22. Zabanbark A. Structure and oil and gas perspectives of the Californian borderland. Oceanology. 2008;48(1):129–137.
23. Khoshtariya V.N., Martyn A.A., Dmitriev S.E., Kirpichnikov A.V., Pyatnitskii Yu.I. The results of E&P works carried out by LLC Gazprom Geologorazvedka in the eastern Sakhalin shelf (Sea of Okhotsk). Geologiya nefti i gaza. 2016;(2):33–42.
24. Akulichev V.A., Obzhirov A.I., Shakirov R.B., Maltseva E.V., Gresov A.I., Telegin Yu.A. Conditions of gas hydrate formation in the Sea of Okhotsk. Doklady Earth Sciences. 2014;454(1):94–96.
25. Nikiforov V.M., Shkabarnya G.N., Zhukovin A.Y., Kaplun V.B., Palshin N.A., Varentsov I.M., Cuong D.H., Phach P.V., Vuong H.V.,Starzhinsky S.S. Vertical fault systems in the tectonosphere geoelectrical section in petroliferous domains of Sakhalin Island (Russia) and Gulf of Tonkin (Vietnam): Evidence from magnetotelluric sounding Russian Journal of Pacific Geology. 2016;35(6):3–15.
26. Grannik V.M. East-Sakhalin island-arc system of the Sea of Okhotsk region. Litosfera. 2013;(1):36–51.
27. Kharakhinov V.V., Astaf'ev D.A., Kalita M.A., Korchagin O.A., Ignatova V.A., Naumova L.A. Possibility of new hydrocarbon fields discovery in the Sakhalin shelf and West Kamchatka. Vesti gazovoi nauki. 2015;2(22):21–35.
28. Belonin M.D., Grigorenko Yu.N., Margulis L.S., Andieva T.A. et. al. Exploration potential of West Kamchatka and adjacent shelf (oil and gas). St. Petersburg: Nedra, 2003. 120 p.
29. Sharapov V.N., Simbirova I.G., Bondarenko P.M. Structure and geodynamics of seismic focal zone of the Kuril-Kamchatka region. Novosibirsk: Nauka, 1984. 199 p.
30. Petrishchevsky A.M. Tectonic interpretation of density heterogeneities in the crust and upper mantle of Kamchatka. Russian Journal of Pacific Geology. 2006;25(1):31–46.
Russian Society of Subsoil Use Experts, Moscow, Russia;