KFU. Card publication. Use of field geophysics data for partitioning of bituminous rocks of the Nizhne-Karmalskoye field, Republic of Tatarstan

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USE OF FIELD GEOPHYSICS DATA FOR PARTITIONING OF BITUMINOUS ROCKS OF THE NIZHNE-KARMALSKOYE FIELD, REPUBLIC OF TATARSTAN

Form of presentation

Articles in Russian journals and collections

Year of publication

2025

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Authors, employees of KFU

Mullakaev Almaz Ilyasovich, author

Sungatullin Rafael Kharisovich, author

Authors, students KFU

Kosarev Yaroslav Sergeevich, author

Bibliographic description in the original language

Sungatullin R. Kh., Kosarev Ya. S., Mullakaev A. I. Use of field geophysics data for partitioning of bituminous rocks of the Nizhne-Karmalskoye field, Republic of Tatarstan // News of the Ural State Mining University, 2025, issue 2(78), pp. 89–97. DOI: 10.21440/2307-2091-2025-1-95-103

Annotation

Object of study – bituminous sandstones of the Sheshmian horizon of the Ufimian stage of the Nizhne-Karmalskoye f ield on the western slope of the South Tatar Arch in the Sheshma river basin. Significance and purpose of the work. During the development of bitumen fields, thermal methods are used to reduce the viscosity of hydrocarbons. This leads to unpredictable circulation in productive sandy layers due to complex dis tribution of permeable and impermeable zones for bitumen migration paths. Therefore, an important task is to clarify the causes and characteristics of internal heterogeneity in bitumen reservoirs, which requires detailed lithological, petrophysical and geophysical studies of productive strata. To date, there is no universal set of well logging methods for the exploration of bitumen deposits. Therefore, the purpose of this article is to use integral analysis of well logging data for more detailed dissection of bitumen-bearing rocks. Methodology. The results of borehole geophysical surveys were processed using multivariate mathematical statistical methods in STATISTICA 10 software with the preparation of integral diagrams for complex interpretation and ob taining new geological knowledge about bitumen-bearing rocks. T he results of the work and their application. The application of multivariate mathematical-statistical methods to the processing of geophysical data from boreholes with integral parameters allowed a detailed analysis of the lithological section. Comparison with the results of laboratory studies of bitumen saturation for the Nizhne-Karmalskoye field showed the possibility of clear identification of bituminous intervals in the upper sandy pack of the Sheshmian hori zon, using the integral “fluid” factor. The thicknesses of bitumen-saturated (more than 5%) intervals in the studied f ield are 5–12 m, which allows to recommend the application of the method of steam-assisted gravity drainage for bitumen production in the Nizhne-Karmalskoye field. Conclusions. An integral approach to processing well logging information allows to identify relationships between physical parameters, lithotypes with different filtration-capacitive properties and bitumen saturation. Methods of multivariate mathematical statistics in processing borehole geophysical data allow more detailed dissection of the bituminous rock section and more precise drawing of stratigraphic boundaries.

Keywords

sandstones, sheshmian horizon, bitumen, well logging, mathematical statistics, integral parameters, field, Nizhne-Karmalskoye

The name of the journal

News of the Ural State Mining University

URL

https://iuggu.ru/index.php

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=314060&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Mullakaev Almaz Ilyasovich	ru_RU
dc.contributor.author	Sungatullin Rafael Kharisovich	ru_RU
dc.contributor.author	Kosarev Yaroslav Sergeevich	ru_RU
dc.date.accessioned	2025-01-01T00:00:00Z	ru_RU
dc.date.available	2025-01-01T00:00:00Z	ru_RU
dc.date.issued	2025	ru_RU
dc.identifier.citation	Sungatullin R. Kh., Kosarev Ya. S., Mullakaev A. I. Use of field geophysics data for partitioning of bituminous rocks of the Nizhne-Karmalskoye field, Republic of Tatarstan // News of the Ural State Mining University, 2025, issue 2(78), pp. 89–97. DOI: 10.21440/2307-2091-2025-1-95-103	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=314060&p_lang=2	ru_RU
dc.description.abstract	News of the Ural State Mining University	ru_RU
dc.description.abstract	Object of study – bituminous sandstones of the Sheshmian horizon of the Ufimian stage of the Nizhne-Karmalskoye f ield on the western slope of the South Tatar Arch in the Sheshma river basin. Significance and purpose of the work. During the development of bitumen fields, thermal methods are used to reduce the viscosity of hydrocarbons. This leads to unpredictable circulation in productive sandy layers due to complex dis tribution of permeable and impermeable zones for bitumen migration paths. Therefore, an important task is to clarify the causes and characteristics of internal heterogeneity in bitumen reservoirs, which requires detailed lithological, petrophysical and geophysical studies of productive strata. To date, there is no universal set of well logging methods for the exploration of bitumen deposits. Therefore, the purpose of this article is to use integral analysis of well logging data for more detailed dissection of bitumen-bearing rocks. Methodology. The results of borehole geophysical surveys were processed using multivariate mathematical statistical methods in STATISTICA 10 software with the preparation of integral diagrams for complex interpretation and ob taining new geological knowledge about bitumen-bearing rocks. T he results of the work and their application. The application of multivariate mathematical-statistical methods to the processing of geophysical data from boreholes with integral parameters allowed a detailed analysis of the lithological section. Comparison with the results of laboratory studies of bitumen saturation for the Nizhne-Karmalskoye field showed the possibility of clear identification of bituminous intervals in the upper sandy pack of the Sheshmian hori zon, using the integral “fluid” factor. The thicknesses of bitumen-saturated (more than 5%) intervals in the studied f ield are 5–12 m, which allows to recommend the application of the method of steam-assisted gravity drainage for bitumen production in the Nizhne-Karmalskoye field. Conclusions. An integral approach to processing well logging information allows to identify relationships between physical parameters, lithotypes with different filtration-capacitive properties and bitumen saturation. Methods of multivariate mathematical statistics in processing borehole geophysical data allow more detailed dissection of the bituminous rock section and more precise drawing of stratigraphic boundaries.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	sandstones	ru_RU
dc.subject	sheshmian horizon	ru_RU
dc.subject	bitumen	ru_RU
dc.subject	well logging	ru_RU
dc.subject	mathematical statistics	ru_RU
dc.subject	integral parameters	ru_RU
dc.subject	field	ru_RU
dc.subject	Nizhne-Karmalskoye	ru_RU
dc.title	Use of field geophysics data for partitioning of bituminous rocks of the Nizhne-Karmalskoye field, Republic of Tatarstan	ru_RU
dc.type	Articles in Russian journals and collections	ru_RU