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Pokur Formation

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—(A) Activation energy distribution for samples 2 and 4 (frequency factors ...
Published: 11 October 1999
Figure 10 —(A) Activation energy distribution for samples 2 and 4 (frequency factors 2.1 × 10 11 /s and 9.1 × 10 13 /s, respectively) and (B) temperature history as calculated for well 411 in the area of the Urengoy gas field (temperatures for base and top of Pokur Formation, respectively
Journal Article
Journal: AAPG Bulletin
Published: 11 October 1999
AAPG Bulletin (1999) 83 (10): 1320–1336.
...Figure 10 —(A) Activation energy distribution for samples 2 and 4 (frequency factors 2.1 × 10 11 /s and 9.1 × 10 13 /s, respectively) and (B) temperature history as calculated for well 411 in the area of the Urengoy gas field (temperatures for base and top of Pokur Formation, respectively...
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Series: Geological Society, London, Petroleum Geology Conference Series
Published: 01 January 2010
DOI: 10.1144/0070659
EISBN: 9781862394131
... Abstract The West Siberia basin is the largest petroleum province in Russia, with 80% of the country's gas resources in the Cenomanian Pokur Formation. Significant undiscovered gas resources have been assessed as on trend with the giant gas fields. However, the origin of the large amounts...
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—Measured δ 13 C values of methane generated during open-system pyrolysis e...
Published: 11 October 1999
Figure 11 —Measured δ 13 C values of methane generated during open-system pyrolysis experiments from sedimentary organic matter of the Pokur Formation as a function of temperature.
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Geothermal-gradient ( g ) patterns for the lower intervals of two deep well...
Published: 01 July 2016
Fig. 1. Geothermal-gradient ( g ) patterns for the lower intervals of two deep wells drilled in the southeast of the West Siberian Plate ( Duchkov et al., 1988 ). Numerals in the columns mark formations of stratigraphic section: 1, Pokur Formation (K 1–2 ); 2–5, Alym, Kiyaly, Tar, and Kulomza
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Mesozoic nomenclature. Seismic horizon nomenclature and age designations an...
Published: 01 March 2022
in the Khanti-Mansisky region (XM). The largely Cenomanian Pokur Formation is denoted by Pk. ISS = Intermediate Structural Stage.
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Present-day (a, b) and maximum (c, d) paleotemperatures at the top Cenomani...
Published: 01 October 2010
Figure 9 Present-day (a, b) and maximum (c, d) paleotemperatures at the top Cenomanian (a, c) and base Aptian (b, d) of the Pokur Formation (based on maps of Kurchikov and Stavitskiy, 1987 , with additions from Skorobogatov et al., 2003 , and Skorobogatov and Stroganov, 2006 ). Cenomanian
Journal Article
Published: 01 September 2012
Russ. Geol. Geophys. (2012) 53 (9): 895–905.
... formations (Pokur, Kuznetsovo, Ipatovo, Slavgorod, Gan’kino), which have not been studied paleomagnetically at all in West Siberia. The magnetobiostratigraphic section comprises Albian–Maastrichtian stratigraphic units (43.5 Myr) and consists of three magnetozones. For example, the Pokur, Kuznetsovo...
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Journal Article
Published: 01 April 2024
Russ. Geol. Geophys. (2024) 65 (4): 491–504.
...- and fourth-order sequences is described in this paper as binomial transgressive-regressive, which is more typical for the facial-cyclic methodology. The Upper Tanopcha Formation is part of the lower Pokur suprahorizon. Its occurrence in the alluvial plain, littoral, sublittoral is justified...
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Journal Article
Journal: AAPG Bulletin
Published: 01 October 2010
AAPG Bulletin (2010) 94 (10): 1485–1541.
...Figure 9 Present-day (a, b) and maximum (c, d) paleotemperatures at the top Cenomanian (a, c) and base Aptian (b, d) of the Pokur Formation (based on maps of Kurchikov and Stavitskiy, 1987 , with additions from Skorobogatov et al., 2003 , and Skorobogatov and Stroganov, 2006 ). Cenomanian...
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Journal Article
Published: 01 July 2004
Russ. Geol. Geophys. (2004) 45 (7): 861–872.
... [in Russian] , 679 pp., Nedra, Moscow , 1975 . Group 1 is the most representative; it includes 12 samples from the Pokur Formation (Aptian-Albian-Cenomanian), 204 samples from the Megion Formation and its analogs (Berriasian-Hauterivian), 79 samples from the Achimovka unit (Neocomian), 29 samples...
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Journal Article
Published: 01 September 2020
Russ. Geol. Geophys. (2020) 61 (9): 1028–1035.
... and at 340–258 m in well 19 ( Fig. 2 ). The Pokur Formation is stripped at core depths of 593– 408 m, 522–368.2 m, and 441.2–349 m in wells 8, 10, and 2, respectively, with the respective thicknesses 185 m, 153.8 m, and 92.2 m. The formation is composed mainly of continental facies deposited...
FIGURES
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Normal-magnetization plots for rock samples from the <span class="search-highlight">Pokur</span> ( a ,  b ), Ipat...
Published: 01 September 2012
Fig. 2. Normal-magnetization plots for rock samples from the Pokur ( a , b ), Ipatovo ( c ), Gan’kino, and Slavgorod ( d , e ) Formations. Figures show the numbers of the samples.
Journal Article
Published: 01 November 2001
Russ. Geol. Geophys. (2001) 42 (11): 1691–1699.
... of the bar led to an abundance of small structure-tectonical traps, in which oil, gas, gas-condensate, and oil-gas-condensate fields have been discovered. The main reserves of hydrocarbons are localized in the roof of the Pokur Formation of Cenomanian age, where oil and gas fields are disclosed. The oil...
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Journal Article
Published: 01 August 2003
Russ. Geol. Geophys. (2003) 44 (8): 781–795.
... center and ongoing transgression in the southeast and in the north, the sea shoaled and the upper sand member of the Vikulov Formation was deposited within its limits. Aggradational facies referred to as the Pokur Formation were deposited over a broad territory of the central, northern, and eastern...
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Journal Article
Published: 01 May 2014
Russ. Geol. Geophys. (2014) 55 (5-6): 681–690.
... the principal Cenomanian pools are connected with. The lower Pokur Formation contains carbonaceous associations, which are a source of the biogenic gas filling the Cenomanian traps ( Ermilov et al., 2004 ; Kontorovich et al., 2013 ). The Turonian–Maastrichtian megacomplex includes the Kuznetsov, Berezov...
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Schematic maps of the scale of generation of liquid hydrocarbons by organic...
Published: 01 July 2019
Fig. 6. Schematic maps of the scale of generation of liquid hydrocarbons by organic matter of the Togur Formation for type II kerogen in the Ust-Tym sedimentary basin at the time of deposits formation. a , Pokur (93.9 Ma); b , Kuznetsov (89.8 Ma); c , Ipatov (83.6 Ma); d , Talit (61.6 Ma); e
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1986
AAPG Bulletin (1986) 70 (7): 830–852.
..., 1977 ; Du Rochet, 1980 ) suggested that Cenozoic glaciations in the West Siberian basin may have influenced the concentration of massive Cenomanian gas deposits in the north. Under this hypothesis, the formation waters of the Pokur Suite reached saturation levels by the end of the Paleogene, causing...
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Journal Article
Published: 01 August 2013
Russ. Geol. Geophys. (2013) 54 (8): 966–979.
... beds (and even up to 60 m thick, in the Tukolando–Vadinskaya-320 well) with the average TOC content of 1.02–3.68%. The Vym’, Malyshevka, Sigovo, and Pokur Formations are most enriched in organic carbon (average TOC contents are >2.1%). The amount of highly carbonaceous rocks in the Vym’, Sigovo...
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Series: Geological Society, London, Special Publications
Published: 01 January 2002
DOI: 10.1144/GSL.SP.2002.196.01.24
EISBN: 9781862394445
... for the Urengoy gas field of West Siberia. For the calculations, the underlying model of the Urengoy field (including the thickness of the Pokur Formation and pressure and temperature data) was taken from Cramer et al. (1999 ). Fig. 3. Rates of thermal methane generation, gas release from groundwater...