tom3 pp.338-347

S.A. Krasnoperova

THE CONDUCTING TRACER STUDIES IN THE FIELDS OF UDMURTIA

Annotation. The article deals with the problem of increasing the reservoir fluid conductivity and changing its hydrogeological structure through the use of flooding technology. This is especially true at a late stage of development. To solve this problem, the article describes tracer (indicator) studies of one of the oil fields of the Udmurt Republic. Thanks to such studies, it is possible to obtain reliable information about the movement of reservoir fluids in time and space, as well as to establish hydrodynamic relationships of deposits and identify the real speed and direction of movement of underground water. The tracer method is based on the introduction of a specified volume of labeled liquid into the control injection well, which is pushed to the control producing wells by a displacing agent by subsequent (after injection of the labeled substance) continuous water supply to the control injection well. Simultaneously, samples are taken from the mouth of producing wells. These investigations at the site the injection wells in Bashkirian oil fields by pumping fluid labeled indicator Uranium A in streaks A4-3, A4-4, A4-5 and fluid labeled with Eosin H, proplast A4-6. The choice of the indicator is due to the fact that the geological and physical conditions of the field (rock composition, reservoir oil composition, fresh water injection, reservoir water mineralization, pH of the medium, and reservoir temperature) are most acceptable for use as tracers of fluorescein derivatives. Based on the results of indicator studies, it was found that the parameters of tracer flow filtration in the dissected and monolithic parts of the productive reservoir are quite close and reliably correlate. This confirms the presence of a hydrodynamic connection between all the layers in the injection well center. Thus, the object A4 of the Bashkir tier of the studied field as a whole is a single hydrodynamic connected both vertically and horizontally natural reservoir.
Keywords: indicator, tracer studies, Uranin A, Eosin H, field, oil, productive formation.

For citation: Krasnoperova S.A. [The conducting tracer studies in the fields of Udmurtia] Upravlenie tekhnosferoi, 2020, vol. 3, issue 3. (In Russ.) Available at: f-ing.udsu.ru/technosphere pp. 338–347. DOI 10.34828/UdSU.2020.75.44.006

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About the Author

Krasnoperova Svetlana Anatolyevna

Candidate of Biological Sciences, Associate Professor, Department of Oil and Gas Geology, Federal State Budgetary Educational Institution of Higher Education "Udmurt state University", 426034, Universitetskaya str., 1/4, Izhevsk, Russia.

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