Abstract

In this paper, we consider the problems that arise when determining the mineral composition of the rocks of the Lower Bberezovskaya subformation.

The Lower Berezovskaya reservoir is composed of clayey gaize with high porosity and low permeability; clay minerals are represented by smectites, which have a high swelling capacity in an aquatic environment. The main method for studying the material composition is the X-ray diffraction method, but it is complicated by the presence of amorphous silica and clays with low crystallinity and poor stoichiometry in the composition of the rocks of the Lower Berezovskaya subformation. A methodological approach is proposed for the study of the rocks of the Cognac-Santonian-Campanian Stage by X-ray diffraction analysis.

Key words:

X-ray diffraction analysis; sample preparation; the Lower Berezovskaya subformation; x-ray amorphous silica; opal-cristobalite-tridymite; leaching

References

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Authors

M.A. Aleksandrov, Tyumen Petroleum Research Center
42, M. Gorky st., Tyumen, 625002, Russian Federation
E-mail: maaleksandrov@tnnc.rosneft.ru

A.V. Solovyeva, PhD, Tyumen Petroleum Research Center
42, M. Gorky st., Tyumen, 625002, Russian Federation
E-mail: avsolovyova@tnnc.rosneft.ru

N.N. Arzhilovskaya, Tyumen Petroleum Research Center
42, M. Gorky st., Tyumen, 625002, Russian Federation
E-mail: nnarzhilovskaya@tnnc.rosneft.ru

R.S. Shulga, Tyumen Petroleum Research Center
42, M. Gorky st., Tyumen, 625002, Russian Federation
E-mail: rsshulga@tnnc.rosneft.ru

For citation:

M.A. Aleksandrov, A.V. Solovyeva, N.N. Arzhilovskaya, R.S. Shulga Osobennosti opredelenija mineral'nogo sostava porod nizhneberezovskoj podsvity na primere Harampurskogo licenzionnogo uchastka [Features of determining the mineral composition of rocks of the Lower Berezovskaya subformation on the example of Kharampursky gas condansate field]. Neftyanaya Provintsiya, No. 2(26), 2021. pp. 1-17. DOI https://doi.org/10.25689/NP.2021.2.1-17 (in Russian)