Geological model and optimal well placement substantiation at the western part Tyumen suite layers of Khanty-Mansiysk Autonomous Okrug — Ugra

The middle Jurassic Tyumen sediments have been involved in the development of oil facilities in the territory of the Khanty-Mansiysk Autonomous Okrug — Ugra for the last decade. The Jk2-5 formation is represented by complex interlayering of poorly permeable sandy-aleurite lenses and clay barriers with low reservoir properties. Recoverable oil reserves of the Jk2-5 formation on the Krasnoleninsky arch amounts to several hundred million tons. According to the collector permeability, the reserves of the object are classified as hard-to-recover.
There are no effective technologies to involve such reserves in the development now. Standard methods of drilling and operation of inclined wells doesn't allow achieving acceptable oil production rates under these reservoir conditions.
Based on the analysis of seismic survey data, correlation of well sections, field information, a geological model of a productive reservoir on the Krasnoleninsky arch was created. The multi-step hydrodynamic calculations made it possible to clarify the parameters of the profile of horizontal wells, the number and configuration of operations for multi-stage hydraulic fracturing. Based on the results of the research, recommendations were developed to well placement, drilling and well operation for specific field areas in order to increase the oil resource development efficiency.

1. Shpurov, I. V., Pisarnitskiy, A. D., Purtova, I. P., & Varichenko, A. I. (2012). Trudnoizvlekaemye zapasy nefti Rossiyskoy Federatsii. Struktura, sostoyanie, perspektivy osvoeniya. Tyumen, ZapSibNIIGG Publ., 256 p. (In Russian).

2. Kuzmin, Yu. A., & Filatov, S. A. (2012). Kharakteristika trudnoizvlekaemykh zapasov nefti mestorozhdeniy KHanty-Mansiyskogo avtonomnogo okruga - Yugry po kriteriyam Minenergo. Vestnik nedropol'zovatelya Khanty-Mansiyskogo avtonomnogo okruga, (25), pp. 25-33. (In Russian).

3. Geologiya i neftegazonosnost' Khanty-Mansiyskogo okruga: atlas (2004). Ekaterinburg, IzdatNaukaServis Publ., 146 p. (In Russian).

4. Gavrilova, E. N., Slavkin, V. S., & Ermolova, T. E. (2010). Reservoir distribution regularities in Tyumen suite deposits on the west of Latitudinal Priobie. Oil and gas geology (3), pp. 52-60. (In Russian).

5. Sevastyanov, A. A., Korovin, K. V., Zotova, O. P., & Zubarev, D. I. (2017). Geological characteristics and assessment of the potential production of the Tyumen suite deposits. Bulletin of Perm University. Geology, 16(1), pp. 61-67. (In Russian).

6. Dmitrievskiy, A. N., & Valyaev, B. M. (Eds.). (2012). Degazatsiya Zemli i genezis neftegazovykh mestorozhdeniy (k 100-letiyu so dnya rozhdeniya akademika P. N. Kropotkina). Moscow, GEOS Publ., 514 p. (In Russian).

7. Bembel, S. R. (2010). Manifestation features of present local geodynamics in the western part of Khmao - Yugra, their relation with zones of oil and gas accumulation. Oil and gas geology, (4), pp. 8-12. (In Russian).

8. Bembel, S. R. (2016). Geologiya i kartirovanie osobennostey stroeniya mestorozhdeniy nefti i gaza Zapadnoy Sibiri. Tyumen, Industrial University of Tyumen Publ., 214 p. (In Russian).

9. Kostenevich, K. A., Belous, O. I., & Slyunkina, S. A. (2017). Vliyanie usloviy formirovaniya i postsedimentatsionnykh protsessov preobrazovaniya otlozheniy na strukturu pustotnogo prostranstva i fil'tratsionno-emkostnye svoystva porod-kollektorov produktivnogo gorizonta tyumenskoy svity Krasnoleninskogo svoda. Sovremennye problemy sedimentologii v neftegazovom inzhiniringe: trudy III Vserossiyskogo nauchno-prakticheskogo sedimentologicheskogo soveshchaniya, April 10-12. Tomsk, TSPPS ND Publ., pp. 84-90. (In Russian).

10. Kos, I. M., Kropotova, E. P., Korovina, T. A., Romanov, E. A., & Fedortsov, I. V. (2004). Influence of lithology rock properties on the exploration and development processes in the wide Ob' area. Oil Industry, (2), pp. 70-73. (In Russian).

11. Kurilenkova, G. A., Usmanov, I. Sh., Melenyuk, Yu. M., & Shakirova, I. V. (2012). Osobennosti geologicheskogo stroeniya i perspektivy neftenosnosti sredneyurskikh otlozheniy severnykh rayonov territorii deyatel'nosti OAO "Surgutneftegaz" v Shirotnom Priob'e. Voprosy geologii, bureniya i razrabotki neftyanykh i gazoneftyanykh mestorozhdeniy Surgutskogo regiona: sbornik nauchnykh trudov "SurgutNIPIneft'", (12). Moscow, Oil Industry Publ., pp. 3-11. (In Russian).

12. Bembel, S. R. (2019). Geologicheskie modeli zalezhey nefti tyumenskoy svity v zapadnoy chasti KHMAO - Yugry. Hard to recover oil and gas reserves. Trudnoizvlekaemye zapasy nefti i gaza. Problemy, issledovaniya i innovatsii: materialy Vserossiyskoy nauch-noprakticheskoy konferentsii, May 15. Ufa, Ufa State Petroleum Technological University Publ., pp. 24-25. (In Russian).

13. Bronskova, E. I. (2016). Comprehensive analysis of April field geological structure to provide effective additional exploration and development of Tyumen suite deposits. Geology, Geophysics and Development of Oil and Gas Fields, (8), pp. 36-44. (In Russian).

14. Shpurov, I. V. (2013). Geologo-tekhnologicheskoe modelirovanie i razrabotka mestorozhdeniy nefti yurskikh otlozheniy Zapadnoy Sibiri. St. Petersburg, Nedra Publ., 208 p. (In Russian).

15. Emelyanov, D. V., Zharkov, A. V., Glebov, A. S., & Likhoded, I. A. (2016). Maintenance of horizontal wells drilling in facies-unstable low-permeable reservoirs of Tyumen suite of Krasnoleninskoye field. Nauchno-tekhnicheskiy vestnik OAO "NK "Rosneft'", (4), pp. 48-51. (In Russian).

16. Golovanova, M. P., Shik, N. S., Slavkin, V. S., & Yermolova, T. E. (2002). Perspektivy resursnoy bazy prirodnykh rezervuarov tyumenskoy svity v svyazi s primeneniem novykh tekhnologicheskikh resheniy. Geologiya nefti i gaza, (3), pp. 7-14. (In Russian).

17. Klubkov, S. V. (2015). Stimulating the development of hard-to-recover hydrocarbons will help sustain the current level of oil production in Russia. Oil & Gas Journal Russia, (6), pp. 6-11. (In Russian).

18. Medvedev, N. Ya. (1997). Geotekhnologicheskie osnovy razrabotki zalezhey s trudnoizvlekaemymi zapasami nefti. Moscow, VNIIOENG Publ., 336 p. (In Russian).

19. Khuzin, R. R. (2012). Geotekhnologicheskie osnovy osvoeniya trudnoizvlekaemykh zapasov melkikh slozhnopostroennykh mestorozhdeniy nefti. Samara, Neft'. Gaz. Novatsii Publ., 384 p. (In Russian).

20. Verkhovtsev, P. N., Elesin, M. V., & Islamgaliev, R. F. (2014). Opyt provedeniya mnogostadiynogo gidrorazryva plast v gorizontal'nykh skvazhinakh OAO "RN-Nyagan'neftegaz". Nauchno-tekhnicheskiy vestnik OAO "NK "Rosneft'", (2), pp. 19-22. (In Russian).

21. Gaifullin, R. R., Gorin, V. V., Grishchenko, A. S., Kotelnikov, A. Yu., Kudrya S. S., & Harisov, V. R. (2014). Razvitie tekhnologii mnogostadiynogo gidrorazryva plasta v OAO "Samotlorneftegaz". Nauchno-tekhnicheskiy vestnik OAO "NK "Rosneft'", (2), pp. 23-30. (In Russian).

22. Gorbunov, P.A., Vorobyev, S.V., & Bembel, S.R. (2020). Features of the forecast of oil and gas potential in the northern part of the West Siberian Plate based on the tectonic dislocation model of the sedimentary cover. The Eurasian Scientific Journal, 1(12). (In Russian). Available at: https://esj.today/PDF/60NZVN120.pdf