DOI: 10.24412/2076-6785-2021-3-17-21
Abstract
The trend of increasing oil production in the Volga-Ural oil and gas province requires increasing the mineral resource base by opening new fields or entering into development of hard-to-recover (unconventional) hydrocarbon reserves. In Tatarstan Republic, natural bitumen (NB) and superviscous oils (SVO) of the Kazanian stage are unconventional, which are not currently involved in development. SVO deposits in Kazanian stage sediments are usually a set of deposits confined to mainly carbonate reservoirs, representing a complex reservoir in terms of reserve development. One of these deposit is the Gorskoye SVO field, located on the Eastern side of the Melekess Depression, on the border of the Tatarstan Republic and the Samara Region. In present work, a lithological and facies analysis kazanian-age sediments was carried out based on the core material data. The most promising areas of reserves development are identified according to the data of the lithological description of the core material.
Materials and methods
Theoretical: lithological and facial maps of Kazanian sediments in the territory of Tatarstan; the concept of lithofacial analysis. Practical: tabular data with a detailed description of the core material from the exploratory wells within the Gorsky field, photos of the Kazan sediment sections.
Keywords
facies analysis, syper-viscous oils, carbonate reservoir, filtrationcapacitance properties, imposed epigenesist
