«Geology, geophysics and development of oil and gas fields»

Geological justification for the treatment of well bottomhole zones in carbonate reservoir conditions using the example of Vendian-Cambrian deposits of the Preobrazhenskiy productive formation of the Verkhnechonskoye field

UDC: 662.276.6
DOI: -

Authors:

¹ Institute of Oil and Gas of the Siberian Federal University, Krasnoyarsk, Russia

Keywords: Vendian-Cambrian deposits, horizontal well, reservoir pressure, flow rate, productivity factor, complex reservoir

Annotation:

Nepa-Botuobinskaya oil and gas region remains a promising region for hydrocarbon production to this day. It has unique deposits in their geological structure, which are characterized by high reservoir properties, hard-to-recover reserves and the presence of a complex carbonate reservoir. The Verkhnechonskoye field studied in the work is at the first stage of development and for more efficient hydrocarbon production in the conditions of a carbonate reservoir it is necessary to use modern geological and technical measures that contribute to an intensive impact on the bottomhole zone of wells in order to increase the potential of producing wells and enhance oil recovery. One of the factors for the use of geological and technical measures are the geological structure and filtration properties of the productive reservoir, which play a significant role in identifying working intervals of wells, forecasting the flow rate and the productivity factor of wells. The work will provide a geological assessment of the acid treatment of wells, followed by the calculation of the parameters of the treatment and determining the current potential of producing wells in the conditions of a carbonate reservoir.

Bibliography:

1. Berzin A.G., Rudykh I.V., Berzin S.A. Osobennosti formirovaniya mnogoplastovykh zalezhey uglevodorodov mestorozhdeniy Nepsko-Botuobinskoy anteklizy // Geologiya nefti i gaza. – 2006. – № 5. – S. 14–20.

2. Vorob’ev V.S., Vilesov A.P. Litologicheskaya kharakteristika preobrazhenskogo produktivnogo gorizonta Verkhnechonskogo mestorozhdeniya (Vostochnaya Sibir’) // Neft. khoz-vo. – 2012. – № 10. – S. 26–32.

3. Vorob’ev V.S. Ispol’zovanie gorizontal’nykh skvazhin pri postroenii geologicheskikh modeley // Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy. – 2014. – № 12. – S. 24–32.

4. Primenenie metoda rentgenovskoy tomografii pri petrofizicheskikh issledovaniyakh kerna neftyanykh i gazovykh mestorozhdeniy / S.V. Galkin, A.A. Efimov, S.N. Krivoshchekov [i dr.] // Geologiya i geofizika. – 2015. – T. 56. – № 5. – S. 995–1007.

5. Gubina E.A. Vend-kembriyskiy karbonatnyy neftegazonosnyy kompleks Nepsko–Botuobinskoy neftegazonosnoy oblasti // Neftegazovaya geologiya. Teoriya i praktika. – 2011. – T. 6. – № 4. – S. 1–9.

6. Podkhody k osvoeniyu nizkopronitsaemykh karbonatnykh otlozheniy Srednebotuobinskogo mestorozhdeniya / E.S. Zyuzev, E.N. Maksimova, K.N. Chertina [i dr.] // Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy. – 2021. – № 11(359). – S. 28–34. – DOI: 10.33285/2413-5011-2021-11(359)-28-34

7. Kornil’tsev Yu.A. Gidrodinamicheskiy analiz razrabotki zalezhey nefti gorizontal’nymi skvazhinami. – Kazan’: Izd-vo "Pluton", 2002. – 230 s.

8. Makhmudbekov E.A., Vol’nov A.I., Vol’nov I.A. Intensifikatsiya dobychi nefti. – M.–Izhevsk: Institut komp’yuternykh issledovaniy, 2018. – 388 s.

9. Megakompleksy i glubinnaya struktura zemnoy kory, neftegazonosnykh provintsiy Sibirskoy platformy // Trudy Sibirskogo nauchno-issledovatel’skogo instituta geologii, geofiziki i mineral’nogo syr’ya // Pod red. V.S. Surkova. – M.: Nedra, 1987. – 204 s.

10. Prokaten’ E.V., Stepanov R.I. Analiz zon povyshennoy treshchinovatosti rifeyskogo karbonatnogo kollektora v predelakh Tersko-Kamovskogo uchastka Yurubcheno-Tokhomskoy zony neftegazonakopleniya // Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy. – 2024. – № 2(386). – S. 13–21.

11. Kislotnye obrabotki plastov i metodiki ispytaniya kislotnykh sostavov / M.A. Silin, L.A. Magadova, V.A. Tsygankov [i dr.]. – M.: RGU nefti i gaza imeni I.M. Gubkina, 2011. – 142 s.

12. Stepanov S.V., Smirnov A.S. Raschetno-parametricheskiy analiz raboty neftyanykh skvazhin podgazovoy zony Verkhnechonskogo mestorozhdeniya na osnove chislenno-analiticheskoy modeli // Neft. khoz-vo. – 2016. – № 10. – S. 72–77.

13. Suleymanov B.A. Teoriya i praktika uvelicheniya nefteotdachi plastov. – M.–Izhevsk: Institut komp’yuternykh issledovaniy, 2022. – 288 s.

14. Suchkov B.M. Gorizontal’nye skvazhiny. – M.–Izhevsk: NITs "Regulyarnaya i khaotichnaya dinamika", 2006. – 424 s.

15. Fatsial’nyy analiz v neftegazovoy litologii // Trudy II Regional’nogo soveshchaniya, posvyashchennogo 100-letiyu so dnya rozhdeniya d-ra geol.-mineral. nauk L.N. Botvinkinoy // Pod red. V.S. Surkova. – Tomsk: Izd-vo Tomskogo politekhnich. un-ta, 2012.

16. Shemin G.G. Tsiklostratigrafiya venda i nizhnego kembriya tsentral’nykh rayonov Sibirskoy platformy. – Novosibirsk: INGG SO RAN, 1991.