Conditions of formation fault-bounded oil reservoirs in the northern part of the Varandey-Adzvinskaya zone

Authors: I.O. Zverev, A.A. Polyakov, O.M. Timoshenko, Y.V. Merkushkina (Rosneft Oil Company OJSC, RF, Moscow)

Key words: Sorokin Swell, fault-bounded oil reservoirs, Lower Devonian, new exploration directions.

Based on review of the geological structure, basin history and evolution of hydrocarbon systems of the Varandey-Adzvinskaya zone, the authors made a conclusion of favorable conditions for the fault-bounded traps for oil accumulations at the eastern flank of the Sorokin Swell. The main reservoirs are related to the Lower Devonian formations. The region had several stages with different oil migration paths due to tectonic reconstruction. Structure of the nearby oil fields supports the proposed concept, making a good basis for new exploration directions.

References

1. Belonin M.D., Prishchepa O.M., Teplov E.L., Budanov G.F., Danilevskiy S.A., Timano-Pechorskaya provintsiya: geologicheskoe stroenie, neftegazonosnost' i perspektivy osvoeniya (Timan-Pechora province: geology, petroleum potential and prospects of development), St. Petersburg: Nedra Publ., 2004, 396 p.

2. Malyshev N.A., Razlomy evropeyskogo severo-vostoka SSSR v svyazi s neftegazonosnost'yu (Fractures of the European North-East of the USSR in connection with the petroleum potential), Leningrad: Nauka Publ., 1986, 112 p.

3. Malyshev N.A., Tektonika, evolyutsiya i neftegazonosnost' osadochnykh basseynov evropeyskogo severa Rossii (Tectonics, evolution, and petroleum potential of sedimentary basins of the European North of Russia), Ekaterinburg: Publ. of Ural Branch of RAS, 2002, 269 p.

4. Dedeev V.A., Getsen V.G., Zaporozhtseva I.V. et al., Struktura platformennogo chekhla Evropeyskogo severa SSSR (The structure of the platform cover of the USSR European North), Leningrad: Nauka Publ., 1982, 198 p.

5. Gayduk V.V., Prokop'ev A.V., Metody izucheniya skladchato-nadvigovykh poyasov (Methods of studying the fold-thrust belt), Novosibirsk: Nauka Publ., 1999, 160 p.

6. Nikishin A.M., Malyshev N.A., Polyakov A.A., Strukturnaya geologiya osadochnykh basseynov (Structural geology of the sedimentary basins), Moscow – Izhevsk: Publ. of Institute of Computer Science, 2008, pp. 141-168.

7. Danilevskiy S.A., Sklyarova Z.P., Trifachev Yu.M., Geoflyuidal'nye sistemy Timano-Pechorskoy provintsii (Geo-fluidal systems of the Timan-Pechora), Geo-fluidal systems of the Timan-Pechora, Ukhta: Publ. of GUP “Timano-Pechorskiy nauchno-issledovatel'skiy tsentr”, 2003, 298 p.

8. Sitar K.A., Geologo-geokhimicheskie usloviya formirovaniya neftegazonosnosti severnoy (akvatorial'noy) chasti Timano-Pechorskogo neftegazonosnogo basseyna (Geological and geochemical conditions of formation of oil and gas potential of the northern (offshore ) part of the Timan-Pechora Basin): Thesis of the candidate of Geology and Mineralogy, Moscow, 2007.

Key words: Sorokin Swell, fault-bounded oil reservoirs, Lower Devonian, new exploration directions.

Based on review of the geological structure, basin history and evolution of hydrocarbon systems of the Varandey-Adzvinskaya zone, the authors made a conclusion of favorable conditions for the fault-bounded traps for oil accumulations at the eastern flank of the Sorokin Swell. The main reservoirs are related to the Lower Devonian formations. The region had several stages with different oil migration paths due to tectonic reconstruction. Structure of the nearby oil fields supports the proposed concept, making a good basis for new exploration directions.

References

1. Belonin M.D., Prishchepa O.M., Teplov E.L., Budanov G.F., Danilevskiy S.A., Timano-Pechorskaya provintsiya: geologicheskoe stroenie, neftegazonosnost' i perspektivy osvoeniya (Timan-Pechora province: geology, petroleum potential and prospects of development), St. Petersburg: Nedra Publ., 2004, 396 p.

2. Malyshev N.A., Razlomy evropeyskogo severo-vostoka SSSR v svyazi s neftegazonosnost'yu (Fractures of the European North-East of the USSR in connection with the petroleum potential), Leningrad: Nauka Publ., 1986, 112 p.

3. Malyshev N.A., Tektonika, evolyutsiya i neftegazonosnost' osadochnykh basseynov evropeyskogo severa Rossii (Tectonics, evolution, and petroleum potential of sedimentary basins of the European North of Russia), Ekaterinburg: Publ. of Ural Branch of RAS, 2002, 269 p.

4. Dedeev V.A., Getsen V.G., Zaporozhtseva I.V. et al., Struktura platformennogo chekhla Evropeyskogo severa SSSR (The structure of the platform cover of the USSR European North), Leningrad: Nauka Publ., 1982, 198 p.

5. Gayduk V.V., Prokop'ev A.V., Metody izucheniya skladchato-nadvigovykh poyasov (Methods of studying the fold-thrust belt), Novosibirsk: Nauka Publ., 1999, 160 p.

6. Nikishin A.M., Malyshev N.A., Polyakov A.A., Strukturnaya geologiya osadochnykh basseynov (Structural geology of the sedimentary basins), Moscow – Izhevsk: Publ. of Institute of Computer Science, 2008, pp. 141-168.

7. Danilevskiy S.A., Sklyarova Z.P., Trifachev Yu.M., Geoflyuidal'nye sistemy Timano-Pechorskoy provintsii (Geo-fluidal systems of the Timan-Pechora), Geo-fluidal systems of the Timan-Pechora, Ukhta: Publ. of GUP “Timano-Pechorskiy nauchno-issledovatel'skiy tsentr”, 2003, 298 p.

8. Sitar K.A., Geologo-geokhimicheskie usloviya formirovaniya neftegazonosnosti severnoy (akvatorial'noy) chasti Timano-Pechorskogo neftegazonosnogo basseyna (Geological and geochemical conditions of formation of oil and gas potential of the northern (offshore ) part of the Timan-Pechora Basin): Thesis of the candidate of Geology and Mineralogy, Moscow, 2007.


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