...V.I. Moskvin; V.P. Danilova; E.A. Kostyreva; M.A. Levchuk; T.M. Parfenova; N.V. Moiseeva; E.N. Ivanova; A.N. Fomin Allochthonous bitumens of the Abalak Formation and oils of the Shaim petroliferous area (PA) were studied in detail at the molecular level. They are similar in some geochemical...

... horizons. The Purpei–Vasyugan area is divided into three subareas according to the structure of the Vasyugan Formation including the petroliferous horizon Yu 1 . Transition zones have been recognized between the Vasyugan Formation and the bordering Abalak, Tatar, and Naunak formations along the western...

... of the Abalak Formation and Lower Vasyugan Subformation, the clay rocks of these units with the content of OM in clarke-exceeding concentrations, despite their intrinsic initial oil generation potential, were not mature and did not produce oil, i.e., they are not oil source rocks. The main parameters...

... (BH-10554, 10009), Lovinskoe (BH-10292), Tal’nikovoe (BH-10417), Ubinskoe (BH-10054), Andreevskoe (BH-10374), Ust’-Iusskoe (BH-8000), Pulyt’inskoe (BH-11108), and Mulym’inskoe (BH-10513) ( Fig. 1 ). The boreholes penetrated the Abalak and Danilovo Formations (uppermost Upper Bathonian—lowermost...

..., Siberian Branch of the RAS 2017 IGM, Siberian Branch of the RAS Concentration of the organic matter in the Kogalym Member is slightly increased, though varies broadly. Different published sources evaluate it between <1% and 5–7%, with an average concentration of 2.75% for the Abalak Formation...

...) ( Gurari, 2004 ). The Dorothia insperata , Trochammina rostovzevi Zone (JF25) corresponds to the lower Abalak Formation and spans the upper Upper Bathonian–Callovian. The zonal assemblage includes a total of 51 foraminifer species ( Table 1 ). They are diverse agglutinated taxa (24 species...

...Fig. 5. Thicknesses of formations of Vasyugan and Georgiev Horizons (A) and depth and relief of basement of the Vasyugan Horizon (Abalak, Vasyugan, and Tochino Formations) in the Urengoi district and adjacent territories (B). ...

...Fig. 5. Ichnofossil distribution over different types of the Callovian–Oxfordian section of the West Siberian basin. A , Vasyugan Formation, Upper Pur facies subregion; B , Vasyugan Formation, Ob’–Tara and Ob’–Agan subregions; C , Abalak Formation; D , Naunak Formation; E , Tochino...

... Formation III, IV Kazym–Konda, Frolovskii–Tambei; Abalak Formation V Nurma (subzone); Nurma Formation VI Purpe–Vasyugan; Vasyugan Formation VII Gydan; Gol’chikha Formation VIII Taz–Kheta; Sigovoe Formation, Barabinsk Member IX, X, XI Omsk, Tebisskaya, Bagan; Tatarskaya Formation...

... and glauconite (Mauryn’ya and Lopsiya Formations) as well as by the Danilovo Formation on Yamal and by the upper part of the Abalak Formation in the Kazym-Konda facies district. In the east, near the Yenisei River, in the Taz-Kheta district, the Kimmeridgian is composed of the upper part of the Sigov Formation...

... boundaries of the formation is still controversial. Researchers focus greater attention on the study of the Abalak Formation transition into the BF ( Zubkov, 2001a ; Balushkina et al., 2013 ; Yurchenko et al., 2015 ; Panchenko and Nemova, 2015 ), rather than on the upper boundary of the Bazhenov Formation...

...Fig. 1. Generalized map of Callovian and Upper Jurassic facies regions in West Siberia and location of SDB-6. 1 — Yamal-Nadym subfacies (Abalak Formation), 2 — Upper Pur subfacies (Vasyugan Formation) of Pur-Irtysh facies; 3 — Taz-Kheta facies (Tochino and Sigovo Formations) [ 22 , 23 ]. ...

...Fig. 13. Hydrogen index (HI) vs. T max (temperature of maximum rate of hydrocarbon generation) diagram for Vasyugan and Georgiev horizons of West Siberia. 1 – 8 , Formations: 1 , Abalak; 2 , Vasyugan, Upper Subformation; 3 , Vasyugan, Lower Subformation; 4 , Georgiev; 5 , Nurmin; 6...