Lithological and Petrophysical Features of Promising Productive Late Miocene Nutovo Deposits on the New Territories of the Northeastern Shelf of the Sakhalin Island
T. F. Dyakonovaa, *, N. A. Tyurinaa, ** (https://orcid.org/0009-0009-1608-6957), L. K. Bataa, *** (https://orcid.org/0000-0002-8818-8962), S. V. Mukhidinovb, ****, E. A. Bulgakovab, *****, A. O. Potapovb, ******, A. D. Egorovaa, ******* (https://orcid.org/0000-0002-0652-1195), A. G. Kalmykova, ******** (https://orcid.org/0000-0002-8862-8227), M. V. Snachevb, *********, and G. A. Kalmykova, ********** (https://orcid.org/0000-0001-8274-3622)
aMoscow State University, Moscow, 119991 Russia
bLLC Gazprom neft shelf, St. Petersburg, 191186 Russia
*email: dyakonovatf@yandex.ru
**email: turina2000@gmail.com
***email: leilabata@gmail.com
****email: mukhidinov.ShV@gazprom-neft.ru
*****email: bulgakova.ea@gazprom-neft.ru
******email: potapov.AO@gazprom-neft.ru
*******email: a.nosikova@oilmsu.ru
********email: a.kalmykov@oilmsu.ru
*********email: Snachev.MV@gazprom-neft.ru
**********email: g.kalmykov@oilmsu.ru
Received May 20, 2025
Abstract— The article presents the results of lithological and petrophysical studies of the Late Miocene Nutovo Formation in the new area of the northeastern shelf of Sakhalin Island. Two main depositional environments have been identified for the target sediments: a beach foreshore zone, represented by sandstones with high poroperm properties and a shallow shelf composed of clay-sandy-silty rocks. Based on core analysis and well-logging data, a lithological-facies model has been developed to predict productive intervals. Special attention is given to the upper Nutovo Subhorizon, where commercial oil inflows were obtained. The results of this study can be applied to further development of the region’s fields.
Keywords:
northeastern shelf of Sakhalin Island,
Late Miocene deposits,
petrophysical studies,
well logging interpretation,
deposition model
DOI: 10.3103/S0145875225700991