Neftyanaya Provintsiya 
No.4(28),2021, Part 2

The investigation of oil reservoirs using the tracer method

S.A. Krasnoperova

DOI: https://doi.org/10.25689/NP.2021.4.353-365


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The article deals with the problem of increasing the reservoir fluid conductivity and changing its hydrogeological structure through the use of waterflooding technology. This is especially true at a later stage of development. To solve this problem, the article describes tracer (indicator) studies of one of the oil fields of the Bashkir object of the Udmurt Republic. Based on tracer research methods, it is possible to obtain reliable information about the presence of high-permeability filtration channels (super reservoirs) between the injection well and the nearest production wells of the Bashkir object, as well as about the distribution of injected water flows and determining the filtration rate of the injected agent in the reservoir. The obtained results of these studies will make it possible to develop a program for the application of flow diverting technologies and refine the technology of impact on the source of an injection well of an oil field. These studies were carried out at the section of the injection well of the Bashkirian stage of the oil field by injecting the fluid labeled with the Uranin A indicator into the А4-3, А4-4, А4-5 interlayers and the Eosin H-labeled fluid into the A4-6 interlayer. The choice of the indicator is due to the fact that the geological and physical conditions of the field (composition of rocks, composition of reservoir oil, fresh water injection, salinity of reservoir water, pH of the medium, and reservoir temperature) are most suitable for use as tracers of fluorescein derivatives. According to the results of indicator studies, it was revealed that the filtration parameters of the tracer flow along the dissected and monolithic parts of the productive formation are quite close and reliably correlate. This confirms the presence of a hydrodynamic connection between all interlayers in the source of the injection well, that is, the Bashkirian stage of the studied field as a whole is a single hydrodynamic connected natural reservoir both vertically and horizontally.

Key words:

indicator, tracer studies, Uranin A, Eosin N, field, oil, productive formation


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S.A. Krasnoperova, Candidate of Biological Sciences, Associate Professor, Department of Oil and Gas Geology, Federal State Budgetary Educational Institution of Higher Education "Udmurt state University"

1/7, Universitetskaya st., Izhevsk, 426034, Russian Federation

E-mail: krasnoperova_sve@mail.ru

For citation:

S.A. Krasnoperova Issledovanie neftjanyh plastov pri pomoshhi trassernogo metoda [The investigation of oil reservoirs using the tracer method]. Neftyanaya Provintsiya, No. 4(28), Part 2, 2021. pp. 353-365. DOI https://doi.org/10.25689/NP.2021.3.353-365 (in Russian)


   © S.A. Krasnoperova, 2021
       This is an open access article under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/)