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Khaziev R.R.
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radmir361@mail.ru |
Institute for Problems Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, IPEM TAS Kazan |
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Andreeva E.E.
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Institute for Problems Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, IPEM TAS Kazan |
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Anisimova L.Z.
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Institute for Problems Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, IPEM TAS Kazan |
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Fakhrutdinov I.R.
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Institute for Problems Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, IPEM TAS Kazan |
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Baranova A.G.
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Institute for Problems Ecology and Mineral Wealth Use of Tatarstan Academy of Sciences, IPEM TAS Kazan |
DOI: 10.24411/2076-6785-2020-10114
Abstract
The work considers the peculiarities of the lithological and tectonic structure of the territory of the northeastern part of the South Tatar arch (STA). Favorable factors for formation of hydrocarbon accumulations in the area under study were revealed: presence of anticlinal structures of the first order, presence of fractured and cavernous rocks in sediments of the Lower sakmar stage, presence of rocks-fluid stops in overlying sediments ensuring preservation of potential
oil deposits. In addition, additional prerequisites for the formation of hydrocarbon deposits (HC) were identified: the presence of faults that provide the possibility for vertical migration of HC with the subsequent filling of potential traps;
as well as secondary changes forming the hollow space of rock collectors. The obtained conclusions make it possible to give a favorable forecast during geological exploration for hydrocarbons in Sakmar sediments on the studied territory.
Materials and methods
Theoretical data: maps of the tectonic structure studying territory and the map of modern neotectonic movements of the earth's crust. “Field” methods: description of core material (both primary according to geological journals, and re-description by a team of authors). Laboratory methods: raster electron microscopy (REM) data of core samples. Object of study: in present work object of research was a core material taken from sakmarian age sediments during exploratory drilling on the territory of the North-Eastern slope of the South-Tatar ark (STA). (In agreement with the subsoil user, data about exploration area, the number of drilled wells, and their sequence numbers are not disclosed.)
Keywords
extra-viscous oils, EVO, carbonate collector, filtration-capacitive properties, FCP, oil reservoir, South Tatar arch, STA, raster electronic microscopy, REM
