New Zaozyornaya-1 stratigraphic well is drilled in the north-eastern part of the Karabashsky zone. The well encountered pre-Jurassic and Jurassic-Cretaceous sedimentary sequences. In the studied well column, oil source rocks are identified in the Jurassic and Lower Cretaceous deposits. The combination of pyrolysis data and maturity indices of saturated and aromatic hydrocarbons demonstrates an increase in Organic Matter maturity from ПК₃ in the Cherkashinsky Fm to МК₂ in the Tyumen Fm. The results of studies allow concluding that the sapropelic OM of the Bazhenov Fm found in the first half of the main oil generation zone have the best generation characteristics. The Cherkashinsky deposits were not involved in oil and gas generation processes because of their low generation potential and low degree of OM maturity. The results of the advanced geochemical studies allowed revealing the genetic association of oil obtained from the abnormal Bazhenov section after hydraulic fracturing with the immediately underlying source interval of the Bazhenov deposits.

Mikhail B. Skvortsov
Head of Department
Candidate of Technical Sciences
All‑Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: skvortsov@vnigni.ru

Svetlana V. Mozhegova  ORCiD  Scopus
Senior Researcher
Aprelevka Division
of All-Russian Research Geological Oil Institute,
1, 1st ul. Ketritsa, Aprelevka, 143363, Russia
e-mail: mozhegova@vnigni.ru

Ivan K. Komkov
Candidate of Geological and Mineralogical Sciences
Head of sector
All‑Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: komkov@vnigni.ru

Yuliia A. Kiselyova
Senior Researcher
Aprelevka Division
of All-Russian Research Geological Oil Institute,
1, 1st ul. Ketritsa, Aprelevka, 143363, Russia
e-mail: yamyalkina@yandex.ru

Irina L. Paizanskaya  ORCiD 
Candidate of Chemical Sciences
Head of the Laboratory of Organic Geochemistry
Aprelevka Division
of All-Russian Research Geological Oil Institute,
1, 1st ul. Ketritsa, Aprelevka, 143363, Russia
e-mail: payzianskaia@vnigni.ru
ORCID ID: 0009-0005-1393-3795

Sergey V. Vorobyev
Candidate of Geological and Mineralogical Sciences
Head of Department
All‑Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: s.vorobyev@vnigni.ru

Sergey M. Frenkel
Candidate of Geological and Mineralogical Sciences
Head of Department
All‑Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: frenk@vnigni.ru

Kirill V. Eroshkin
Head of the sector
All‑Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: eroshkin@vnigni.ru

Anna A. Alferova   ORCiD 
1st Category Engineer
Aprelevka Division of
All-Russian Research Geological Oil Institute,
1, 1st ul. Ketritsa, Aprelevka, 143363, Russia
e-mail: a.alferova@vnigni.ru

Elizaveta M. Kravchenko  ORCiD
1st Category Engineer
Aprelevka Division of
All-Russian Research Geological Oil Institute,
1, 1st ul. Ketritsa, Aprelevka, 143363, Russia
e-mail: e.kravchenko@vnigni.ru

Elena A. Sorokina
1st Category Geologist
All‑Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: sorokina@vnigni.ru

Irina A. Evstratova
A leading geologist
All‑Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: torgovykh_i@mail.ru

Eleonora I. Kosolapova
1st Category Geologist
All‑Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: kosolapova@vnigni.ru

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