Localization of inflow intervals and storage volume of the Bazhenov Formation, Sredne-Nazym oil field

Немова, В.Д.; Panchenko, Ivan

doi:10.17353/2070-5379/11_2017

NGTP

2017

DOI: 10.17353/2070-5379/11_2017

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Localization of inflow intervals and storage volume of the Bazhenov Formation, Sredne-Nazym oil field

В.Д. Немова¹,

Ivan Panchenko²

Abstract: Немова В.Д., Панченко И.В. Федеральное государственное бюджетное учреждение «Всероссийский научноисследовательский геологический нефтяной институт» (ФГБУ «ВНИГНИ»); ЗАО «МиМГО», Москва, Россия, nemova@vnigni.ru, panchenko@mimgo.ru ЛОКАЛИЗАЦИЯ ПРИТОЧНЫХ ИНТЕРВАЛОВ БАЖЕНОВСКОЙ СВИТЫ И ИХ ЕМКОСТНОЕ ПРОСТРАНСТВО НА СРЕДНЕ-НАЗЫМСКОМ МЕСТОРОЖДЕНИИ Впервые изучен керн баженовской свиты, подвергшийся термогазовому воздействию в пластовых условиях. Данный техногенный процесс вызвал значительный нагрев и окисление целев… Show more

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Microscopic mechanical model of the main structural element of Bazhenov Suite reservoir rocks

Grigoriev

Shilko

Psakhie

et al. 2019

J. Phys.: Conf. Ser.

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We propose a microscale model of the main structural element (“bearing” layers) of kerogen-clay-carbonate-siliceous rocks of the Bazhenov formation. The model treats the rock as a composite material with inorganic clay matrix and different content of organic inclusions (up to 25%) and micropores filled with low-viscous fluid (light hydrocarbon fractions). A computer simulation of the mechanical behavior of representative samples of structural elements of the studied rock under triaxial compression was carried out using the hybrid cellular automaton method and a coupled mechanical model that takes into account the mutual influence of porous rock deformation and filtration of a pore fluid. It is shown that the mechanical behavior of the “bearing” layer of rock at side pressures that meet the characteristic conditions of occurrence is satisfactorily described by rock plasticity models with two-parameter flow functions.

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Microscopic mechanical model of the main structural element of Bazhenov Suite reservoir rocks

Grigoriev

Shilko

Psakhie

et al. 2019

J. Phys.: Conf. Ser.

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New data on lithology, organic geochemistry and accumulation conditions of the Bazhenov formation in Western Siberia

et al. 2019

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This paper presents data on lithological composition, distribution, reservoir properties, geochemistry of organic matter and genesis of carbonate rocks of the Bazhenov formation within the central part of Western Siberia (the region of the Khantei hemianteclise). The following types of carbonates are distinguished: a) primary biogenic – shell rock interlayers and residues of coccolith; b) dia- and catagenetic – in varying degrees, recrystallized rocks with coccoliths, nodules and aporadiolarites; c) catagenetic – cracks healed with calcite in limestone of the foot of the Bazhenov formation. It was determined that the crystallization of the carbonate material of nodules took place in various conditions: in the bottom part of the sediments and in the later stages of diagenesis. The source of calcite for nodules was calcareous nanoplankton or bivalve shells. The carbonate content of the cuts decreases in the following sequence: Yuzhno-Yagunsky → Povkhovsky → Novortyagunsky → Druzhny areas, which are associated both with facial features and various physicochemical conditions of diagenesis and catagenesis. Transformation of organic matter increases in the northeast direction from South Yagunsky to Povkhovsky area, which is confirmed by molecular parameters of catagenesis. The carbonate rocks of the bottom part of the Bazhenov formation in the South Yagunsky area are similar in structure to the main oil-bearing reservoirs of the Salym and Krasnoleninsky fields.

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Upper Jurassic Sediments in the Western Side of the Frolovskoye Basin in West Siberia: Diverse Patterns and Environments of Deposition

Nemova,

Shakhov,

Bazhukova

et al. 2024

Russian Geology and Geophysics

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—The paper presents data on different types of Late Jurassic carbonaceous–siliceous–shale sequences of marine deposits in the western side of the Frolovskoye basin. The diverse sedimentation patterns in the area were presumably controlled by tectonics, sea bottom topography, and currents, with voluminous gas venting through large faults. Recent exploration drilling in the Elizarovo trough and the Vygnlor basin revealed Upper Jurassic sections of a previously unknown type with low-radioactivity lower strata markedly thicker at the account of biogenic radiolarite intercalations affected by postdepositional carbonatization. The lithology of these rocks is described with implications for deposition environments and extent of such sections.

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Localization of inflow intervals and storage volume of the Bazhenov Formation, Sredne-Nazym oil field

Cited by 5 publications

References 0 publications

Microscopic mechanical model of the main structural element of Bazhenov Suite reservoir rocks

Microscopic mechanical model of the main structural element of Bazhenov Suite reservoir rocks

New data on lithology, organic geochemistry and accumulation conditions of the Bazhenov formation in Western Siberia

Upper Jurassic Sediments in the Western Side of the Frolovskoye Basin in West Siberia: Diverse Patterns and Environments of Deposition

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