Features of the petrophysical model of carbonate reservoirs at Irkutsk license areas

Authors: D.A. Filatov, V.A. Kolesov, N.B. Krasilnikova (RN-KrasnoyarskNIPIneft LLC, RF, Krasnoyarsk), V.V. Isaeva (RN-Exploration LLC, RF, Moscow)
E-mail: FilatovDA@kr-nipineft.ru
Key words: carbonate reservoir, petrophysical model, laboratory investigations of core, well logging, Eastern Siberia.

Irkutsk license plots of Rosneft Oil Company are located at the North-Western, Western slopes of Nepsky arch of Nepsko-Botuobinskaya anteclise. Geological oil and gas exploration in the area of Irkutsk license plots has been started during the early 70-s of the last century. Within the period of 2009-2013 on the area of the considered license plots there were drilled 15 exploratory wells. These wells were considered as the base for studying rock properties and rock material composition as in the wells of new fund there has been done full core sampling, core samples were subject to the wide range of petrophysical investigations – using both standard samples and fullsized samples, there has been done the expanded complex of well logging. This paper presents obtained petrophysical functions, description and grounding of algorithms of well logging data interpretation. 

References
1. Metodicheskie rekomendatsii po podschetu geologicheskikh zapasov nefti i
gaza ob"emnym metodom (Guidelines for the calculation of geological reserves
of oil and gas by volumetric method): edited by Petersil'e V.I., Poroskun V.I., Yatsenko G.G., Moscow- Tver': Publ. of VNIGNI, NPTs “Tver'geofizika”, 2003, 259 p.
2. Nikitin A.N., Kompleksnye issledovaniya kerna, otobrannogo iz skvazhiny №9
Mogdinskogo litsenzionnogo uchastka (Integrated core analysis, selected from the
hole number 9 of Mogdinsky license area), V. 5. Spetsial'nye YaMR issledovaniya
(Special NMR research), Tver': Publ of NPTs “Tver'geofizika”, 2013, 32 p.
3. Bibik A.N., Materialy po operativnoy otsenke zapasov Vostochno-Preobrazhenskogo  neftyanogo mestorozhdeniya (otkrytie) Katangskogo rayona Irkutskoy oblasti (Materials for the rapid assessment of stocks of Vostochno-Preobrazhenskoe oil field (opening) of Katanga district of the Irkutsk Region), 2012, 180 p.
E-mail: FilatovDA@kr-nipineft.ru
Key words: carbonate reservoir, petrophysical model, laboratory investigations of core, well logging, Eastern Siberia.

Irkutsk license plots of Rosneft Oil Company are located at the North-Western, Western slopes of Nepsky arch of Nepsko-Botuobinskaya anteclise. Geological oil and gas exploration in the area of Irkutsk license plots has been started during the early 70-s of the last century. Within the period of 2009-2013 on the area of the considered license plots there were drilled 15 exploratory wells. These wells were considered as the base for studying rock properties and rock material composition as in the wells of new fund there has been done full core sampling, core samples were subject to the wide range of petrophysical investigations – using both standard samples and fullsized samples, there has been done the expanded complex of well logging. This paper presents obtained petrophysical functions, description and grounding of algorithms of well logging data interpretation. 

References
1. Metodicheskie rekomendatsii po podschetu geologicheskikh zapasov nefti i
gaza ob"emnym metodom (Guidelines for the calculation of geological reserves
of oil and gas by volumetric method): edited by Petersil'e V.I., Poroskun V.I., Yatsenko G.G., Moscow- Tver': Publ. of VNIGNI, NPTs “Tver'geofizika”, 2003, 259 p.
2. Nikitin A.N., Kompleksnye issledovaniya kerna, otobrannogo iz skvazhiny №9
Mogdinskogo litsenzionnogo uchastka (Integrated core analysis, selected from the
hole number 9 of Mogdinsky license area), V. 5. Spetsial'nye YaMR issledovaniya
(Special NMR research), Tver': Publ of NPTs “Tver'geofizika”, 2013, 32 p.
3. Bibik A.N., Materialy po operativnoy otsenke zapasov Vostochno-Preobrazhenskogo  neftyanogo mestorozhdeniya (otkrytie) Katangskogo rayona Irkutskoy oblasti (Materials for the rapid assessment of stocks of Vostochno-Preobrazhenskoe oil field (opening) of Katanga district of the Irkutsk Region), 2012, 180 p.


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