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

The origin and regional distribution of overpressure zones in the Middle Caspian region

UDC: 550.834.05
DOI: 10.33285/2413-5011-2021-12(360)-103-113

Authors:

¹ LLC "LUKOIL-Engineering", Moscow, Russia
² LLC LUKOIL-Nizhnevolzhskneft, Astrakhan, Russia

Keywords: Caspian Sea, overpressure zones, mechanism of formation, porous pressure gradient, well-logging, seismic exploration, geological history of the region, compaction of rocks, diagenetic transformation, effective stress

Annotation:

The article presents the results of a complex approach to geological and geophysical data analysis; the main purpose of which is investigation overpressure zones in the Middle Cas-pian region water areas. Two regional zones: Maykop zone and Middle Jurassic zone of over-pressure zones are identified on the territory of study in the section of the sedimentary cover. For each of them the parameters such as the position in the section, area distribution, range of pore pressure gradient and the mechanism of formation were determined.

Based on the analysis of the systemized multidisciplinary information, the criteria of overpres-sure zones have been developed and tested by their geophysical, geological and seismic parame-ters.

Bibliography:

1. Regional’naya geologiya i neftegazonosnost’ Kaspiyskogo morya / I.F. Glumov, Ya.P. Malovitskiy, A.A. Novikov, B.V. Senin. – M.: OOO "Nedra-Biznestsentr", 2004. – 342 s.

2. Medvedev P.V., Popovich S.V., Kuklinskiy A.Ya. Tektonicheskoye stroyeniye i nekotoryye voprosy neftegazogeologicheskogo rayonirovaniya platformennogo chekhla akvatorii Severnogo i Srednego Kaspiya (v predelakh Skifsko-Turanskoy platformy) // Voprosy geologii i perspektivy neftegazonosnosti Nizhnego Povolzh’ya i Kaspiyskogo morya: sb. nauch. trudov OOO "LUKOIL–VolgograNIPImorneft’". – Volgograd, 2008. – Vyp. 67.

3. Tektonika yuzhnogo obramleniya Vostochno-Evropeyskoy platformy (Ob”yasnitel’naya zapiska k tektonicheskoy karte Chernomorsko-Kaspiyskogo regiona. Masshtab 1:2500000) / Pod red. V.E. Khaina, V.I. Popkova. – Krasnodar: Kubanskiy gos. un-t, 2009. – 107 s.

4. Paleomap. Project by C.R. Scotese. – 2014. – URL: http://www.scotese.com/

5. Patina I.S. Maykopskiye klinoformy Kaspiyskogo regiona // Byulleten’ Mosk. ob-va ispytateley prirody. Otd. geologii. – 2013. – T. 88. – Vyp. 5. – S. 3–8.

6. Aristarkhov A.V., Kerusov I.N., Sokolova M.S. Prognoz porovogo davleniya na osnove seysmicheskikh skorostey dlya tseley bureniya poiskovo-razvedochnykh skvazhin // Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy. – M.: OAO "VNIIOENG", 2019. – № 2. – S. 47–57. – DOI: 10.30713/2413-5011-2019-2-47-57

7. Vydeleniye perspektivnykh ob”yektov v sredneyurskikh otlozheniyakh Manychsko-Khvalynskoy strukturnoy terrasy (akvatoriya Srednego Kaspiya) na osnove kompleksnoy interpretatsii seysmicheskikh dannykh / I.D. Agapitov, I.N. Kerusov, A.A. Belova, S.Yu. Shtun’, A.G. Alekseyev // Geofizika. – 2018. – № 3. – S. 4–9.

8. Magara K. Uplotneniye porod i migratsiya flyuidov: Prikl. geologiya nefti / Per. s angl. E.V. Kucheruka, N.I. Vysotskogo. – M.: Nedra, 1982. – 296 s.

9. Dobrynin V.M., Serebryakov V.A. Metody prognozirovaniya anomal’no vysokikh plastovykh davleniy. – M.: Nedra, 1978. – 232 s.

10. Aleksandrov B.L. Anomal’no vysokiye plastovyye davleniya v neftegazonosnykh basseynakh. – M.: Nedra, 1987. – 216 s.

11. Fertl’ U.Kh. Anomal’nyye plastovyye davleniya. Ikh znacheniye pri poiskakh, razvedke i razrabotke resursov nefti i gaza. – M.: Nedra, 1980. – 398 s.

12. Belonin M.D., Slavin V.I., Chilingar D.V. Anomal’no vysokiye plastovyye davleniya. Proiskhozhdeniye, prognoz, problemy osvoyeniya zalezhey uglevodorodov. – SPb.: Nedra, 2005. – 324 s.

13. Bowers G. Detecting high overpressure // SEG, The Leading Edge. – 2002. – Vol. 21. – № 2. – Pp. 174–177. – DOI: https://doi.org/10.1190/1.1452608

14. Bowers G.L., Katsube T.J. The role of shale pore structure on the sensitivity of Wire-Line Logs to Overpressure in A.R. Huffman, G.L. Bowers [eds.]. Pressure regimes in sedimentary basins and their prediction // AAPG Memoir. – 2002. – Vol. 76. – Pp. 43–60.

15. Swarbrick R.E. Review of pore-pressure prediction challenges in high-temperature areas // The Leading Edge. – 2012. – Vol. 31. – № 11. – Pp. 1288–1294. – DOI: 10.1190/TLE31111288.1

16. Geologiya i geokhimiya khadumskoy svity Predkavkaz’ya kak potentsial’nogo istochnika "slantsevykh" uglevodorodov / N.Sh. Yandarbiyev, N.P. Fadeyeva, E.V. Kozlova, Yu.V. Naumchev // Georesursy. – 2017. – Spetsvypusk. – Ch. 2. – S. 208–226. – DOI: http://doi.org/10.18599/grs.19.21

eview of pore-pressure prediction challenges in high-temperature areas // The Leading Edge. – 2012. – Vol. 31. – № 11. – Pp. 1288–1294. – DOI: 10.1190/TLE31111288.1

16. Геология и геохимия хадумской свиты Предкавказья как потенциального источника "сланцевых" углеводородов / Н.Ш. Яндарбиев, Н.П. Фадеева, Е.В. Козлова, Ю.В. Наумчев // Георесурсы. – 2017. – Спецвыпуск. – Ч. 2. – С. 208–226. – DOI: http://doi.org/10.18599/grs.19.21