Multi-disciplinary approach for identifying and forecasting high-porosity vuggy zones in the Riphean reservoir of the Yurubcheno-Tokhomskoye field

UDK: 551.762.33
DOI: 10.24887/0028-2448-2020-12-74-79
Key words: vugs, Eastern Siberia, oil-and-gas occurrence, Riphean, well-log, core, 3D seismic
Authors: K.A. Tihoniva (RN-KrasnoyarskNIPIneft LLC, RF, Krasnoyarsk), A.A. Koziaev (RN-KrasnoyarskNIPIneft LLC, RF, Krasnoyarsk), D.V. Nazarov (RN-KrasnoyarskNIPIneft LLC, RF, Krasnoyarsk), S.K. Kvachko (RN-KrasnoyarskNIPIneft LLC, RF, Krasnoyarsk), E.A. Gubina (RN-KrasnoyarskNIPIneft LLC, RF, Krasnoyarsk), N.M. Kutukova (Rosneft Oil Company, RF, Moscow)

The article considers one of the largest fields operated by Rosneft Oil Company in Eastern Siberia – Yurubcheno-Tokhomskoye oilfield. Main reservoir of the field associated with the oldest sedimentary deposits of the planet – Riphean. The field is classified as very complex in terms of geological aspects and has practically no analogues. Reservoir properties of rocks are associated with a system of natural fracture system and the presence of vuggy zones. The paper describes a multi-disciplinary approach for identifying and forecasting high- porosity vuggy zones in the Riphean carbonate reservoir. The results of the classification of vugs based on core data are presented and the features of its distribution are empirically substantiated. A well logs interpretation technique was developed based on standard methods and using advanced technologies. Various approaches based on 3D seismic data have been proposed for predicting high- porosity vuggy zones. For the forecast we used both modern interpretation technologies, such as seismic inversion and spectral decomposition, and innovative technologies based on scattered seismic waves processing and interpreting. The results obtained are aimed at increasing the efficiency exploration, production and geological support for well drilling, by reducing geological risks. The relevance of the work is due, firstly, to the fact that previously the Riphean reservoirs of Yurubcheno-Tokhomskoye oilfield were considered exclusively from the perspective of predicting fracturing, and the vuggy zones was not given sufficient attention due to poor amount of the core data. Secondly, the paper presents advanced technologies that can be useful in the study of other objects with vuggy reservoir type.

References

1. Meretskiy A.A., Merzlikina A.S., Ispol'zovanie rasseyannykh seysmicheskikh voln dlya prognoza kollektorskikh svoystv (Using scattered seismic waves to predict reservoir properties), Proceedings of II Scientific-practical conference “Matematicheskoe modelirovanie i komp'yuternye tekhnologii v razrabotke mestorozhdeniy” (Mathematical modeling and computer technology in the development of the fields), Ufa, 15–17 April 2009, Moscow:  Neftyanoe khozyaystvo Publ., 2009.

2. Kharakhinov V.V., Shlenkin S.I. et al., Treshchinnye rezervuary nefti i gaza (Fractured oil and gas reservoirs), Moscow: Nauchnyy mir Publ., 2015, 284 p.

3.  Kharakhinov V.V., Shlenkin S.I., Neftegazonosnost' dokembriyskikh tolshch Vostochnoy Sibiri na primere Kuyumbinsko-Yurubcheno-Tokhomskogo areala neftegazonakpoleniya (The oil and gas potential of the Precambrian strata of Eastern Siberia on the example of the Kuyumbinsko-Yurubcheno-Tokhomsky area of the oil and gas region), Moscow: Nauchnyy mir Publ., 2011, 420 p.

4. Vetrova N.I., Geokhimiya i C-, Sr-khemostratigrafiya pozdnedokembriyskikh karbonatnykh otlozheniy Sibirskoy platformy (khorbusuonskaya seriya i dashkinskaya svita) (Geochemistry and C-, Sr-chemostratigraphy of Late Precambrian carbonate deposits of the Siberian platform (Khorbusuon series and Dashkinskaya suite)): thesis of candidate of geological and mineralogical science, Novosibirsk, 2018.

5. Korobov A.D., Korobova L.A., Hydrothermal nature of cavern formation in the Vendian-Riphean collectors in the Baikitskaya Anteclise – a key to predicting zones of oil and gas accumulation (In Russ.), Izvestiya of Saratov University = New series. Series: Earth Sciences, 2006, V. 6, no. 1, pp. 57-63, DOI: https://doi.org/10.18500/1819-7663-2006-6-1-57-63

6. Mel'nikov N.V., Vend-kembriyskiy solenosnyy basseyn Sibirskoy platformy (Stratigrafiya, istoriya razvitiya) (Vendian-Cambrian salt basin of the Siberian Platform (Stratigraphy, development history)), Novosibirsk: Publ. of SNIIGGiMS, 2018, 177 p.

7. Kozyaev A.A., Bibik A.N., Kvachko S.K. et al., Spektral'naya dekompozitsiya – effektivnaya metodika dlya izucheniya geologicheskikh osobennostey, na primere mestorozhdeniy Vostochnoy Sibiri (Spectral decomposition is an effective technique for studying geological features, on the example of fields in Eastern Siberia), Proceedings of Geomodel 2016 – 18th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development, 2016, DOI: 10.3997/2214-4609.201602210

8. Osipenko A.A., Boykov O.I., Nazarov D.V. et al., Practical aspects of the identification of the void space of cavern-and-fracture reservoirs in conditions of an extremely low porosity (In Russ.), Karotazhnik, 2019, no. 6 (300), pp. 134–144.

9. Pozdnyakov V.A., Shilikov V.V., Merzlikina A.S., Allocation of high fractured zones in carbonate reservoir of Eastern Siberia (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2011, no. 7, pp. 86–88.

10.  Lisitsa V.V., Pozdnyakov V.A. et al., Scattered seismic responses: simulation and imaging. Part 1. Two-dimensional media (In Russ.), Tekhnologii seysmorazvedki, 2013, no. 1, pp. 46–58.

11. Likhachev P.A., Kozyaev A.A., Izuchenie kharakteristik sistemy estestvennoy treshchinovatosti i kavernoznosti dlya optimizatsii razrabotki karbonatnogo rezervuara (Research of the characteristics of the system of natural fracturing and cavernosity to optimize the development of carbonate reservoirs), Proceedings of Geomodel 2019 – 21th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development, 2019, DOI: 10.3997/2214-4609.201950022

12. Gadyl'shin K.G., Kolyukhin D.R., Lisitsa V.V. et al., Use of scattered wavefield to locate fine cavernous layers in fractured formations of Yurubcheno-Tokhomskoye field (In Russ.), Tekhnologii seysmorazvedki, 2017, no. 1, pp. 56-62.

13. Kozyaev A., Petrov D., Melnik A. et al., Vuggy zone forecast through the integration of logging data and azimuthal characteristics of scattered seismic waves, Proceedings of 6th scientific conference – Tyumen 2019, Tyumen, 25–29 March 2019.

The article considers one of the largest fields operated by Rosneft Oil Company in Eastern Siberia – Yurubcheno-Tokhomskoye oilfield. Main reservoir of the field associated with the oldest sedimentary deposits of the planet – Riphean. The field is classified as very complex in terms of geological aspects and has practically no analogues. Reservoir properties of rocks are associated with a system of natural fracture system and the presence of vuggy zones. The paper describes a multi-disciplinary approach for identifying and forecasting high- porosity vuggy zones in the Riphean carbonate reservoir. The results of the classification of vugs based on core data are presented and the features of its distribution are empirically substantiated. A well logs interpretation technique was developed based on standard methods and using advanced technologies. Various approaches based on 3D seismic data have been proposed for predicting high- porosity vuggy zones. For the forecast we used both modern interpretation technologies, such as seismic inversion and spectral decomposition, and innovative technologies based on scattered seismic waves processing and interpreting. The results obtained are aimed at increasing the efficiency exploration, production and geological support for well drilling, by reducing geological risks. The relevance of the work is due, firstly, to the fact that previously the Riphean reservoirs of Yurubcheno-Tokhomskoye oilfield were considered exclusively from the perspective of predicting fracturing, and the vuggy zones was not given sufficient attention due to poor amount of the core data. Secondly, the paper presents advanced technologies that can be useful in the study of other objects with vuggy reservoir type.

References

1. Meretskiy A.A., Merzlikina A.S., Ispol'zovanie rasseyannykh seysmicheskikh voln dlya prognoza kollektorskikh svoystv (Using scattered seismic waves to predict reservoir properties), Proceedings of II Scientific-practical conference “Matematicheskoe modelirovanie i komp'yuternye tekhnologii v razrabotke mestorozhdeniy” (Mathematical modeling and computer technology in the development of the fields), Ufa, 15–17 April 2009, Moscow:  Neftyanoe khozyaystvo Publ., 2009.

2. Kharakhinov V.V., Shlenkin S.I. et al., Treshchinnye rezervuary nefti i gaza (Fractured oil and gas reservoirs), Moscow: Nauchnyy mir Publ., 2015, 284 p.

3.  Kharakhinov V.V., Shlenkin S.I., Neftegazonosnost' dokembriyskikh tolshch Vostochnoy Sibiri na primere Kuyumbinsko-Yurubcheno-Tokhomskogo areala neftegazonakpoleniya (The oil and gas potential of the Precambrian strata of Eastern Siberia on the example of the Kuyumbinsko-Yurubcheno-Tokhomsky area of the oil and gas region), Moscow: Nauchnyy mir Publ., 2011, 420 p.

4. Vetrova N.I., Geokhimiya i C-, Sr-khemostratigrafiya pozdnedokembriyskikh karbonatnykh otlozheniy Sibirskoy platformy (khorbusuonskaya seriya i dashkinskaya svita) (Geochemistry and C-, Sr-chemostratigraphy of Late Precambrian carbonate deposits of the Siberian platform (Khorbusuon series and Dashkinskaya suite)): thesis of candidate of geological and mineralogical science, Novosibirsk, 2018.

5. Korobov A.D., Korobova L.A., Hydrothermal nature of cavern formation in the Vendian-Riphean collectors in the Baikitskaya Anteclise – a key to predicting zones of oil and gas accumulation (In Russ.), Izvestiya of Saratov University = New series. Series: Earth Sciences, 2006, V. 6, no. 1, pp. 57-63, DOI: https://doi.org/10.18500/1819-7663-2006-6-1-57-63

6. Mel'nikov N.V., Vend-kembriyskiy solenosnyy basseyn Sibirskoy platformy (Stratigrafiya, istoriya razvitiya) (Vendian-Cambrian salt basin of the Siberian Platform (Stratigraphy, development history)), Novosibirsk: Publ. of SNIIGGiMS, 2018, 177 p.

7. Kozyaev A.A., Bibik A.N., Kvachko S.K. et al., Spektral'naya dekompozitsiya – effektivnaya metodika dlya izucheniya geologicheskikh osobennostey, na primere mestorozhdeniy Vostochnoy Sibiri (Spectral decomposition is an effective technique for studying geological features, on the example of fields in Eastern Siberia), Proceedings of Geomodel 2016 – 18th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development, 2016, DOI: 10.3997/2214-4609.201602210

8. Osipenko A.A., Boykov O.I., Nazarov D.V. et al., Practical aspects of the identification of the void space of cavern-and-fracture reservoirs in conditions of an extremely low porosity (In Russ.), Karotazhnik, 2019, no. 6 (300), pp. 134–144.

9. Pozdnyakov V.A., Shilikov V.V., Merzlikina A.S., Allocation of high fractured zones in carbonate reservoir of Eastern Siberia (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2011, no. 7, pp. 86–88.

10.  Lisitsa V.V., Pozdnyakov V.A. et al., Scattered seismic responses: simulation and imaging. Part 1. Two-dimensional media (In Russ.), Tekhnologii seysmorazvedki, 2013, no. 1, pp. 46–58.

11. Likhachev P.A., Kozyaev A.A., Izuchenie kharakteristik sistemy estestvennoy treshchinovatosti i kavernoznosti dlya optimizatsii razrabotki karbonatnogo rezervuara (Research of the characteristics of the system of natural fracturing and cavernosity to optimize the development of carbonate reservoirs), Proceedings of Geomodel 2019 – 21th Science and Applied Research Conference on Oil and Gas Geological Exploration and Development, 2019, DOI: 10.3997/2214-4609.201950022

12. Gadyl'shin K.G., Kolyukhin D.R., Lisitsa V.V. et al., Use of scattered wavefield to locate fine cavernous layers in fractured formations of Yurubcheno-Tokhomskoye field (In Russ.), Tekhnologii seysmorazvedki, 2017, no. 1, pp. 56-62.

13. Kozyaev A., Petrov D., Melnik A. et al., Vuggy zone forecast through the integration of logging data and azimuthal characteristics of scattered seismic waves, Proceedings of 6th scientific conference – Tyumen 2019, Tyumen, 25–29 March 2019.


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