
ISSN 1608-5078 (Online)
Estimation of displacement efficiency for Devonian formations based on the results of specialized well tests
I.M. Indrupskiy, K.V. Kovalenko, D.M. Gazizova, A.F. Sibgatullin, D.P. Anikeev, N.V. Shabalin, K.R. Sadeev, A.A. Lutfullin
Original article
open access
The displacement efficiency and residual oil saturation are the most important characteristics determining the recoverable volumes of oil and the waterflooding efficiency. The main data about these parameters are provided by laboratory core studies. Specialized field tests make it possible to evaluate the same characteristics in-situ, directly on a well, thus excluding the influence of scale effect and impact of core sampling and preparation.
This paper presents the results of a field study to evaluate the displacement efficiency and residual oil saturation on a well draining terrigenous Devonian formations on one of the areas of the Romashkinskoye field. The results are compared with generalized dependencies based on core data. Significant influence of the scale effect (the effect of sweep multiplicity) on the estimated parameter values was noted, which indicates the need to supplement laboratory experiments with specialized field studies.
displacement efficiency, residual oil saturation, field study, well logging, well tests, pulsed neutron logging, scale effect
Ilya M. Indrupskiy – Dr. Sci. (Engineering), Head of the Laboratory, Oil and Gas Research Institute of the Russian Academy of Sciences
3, Gubkin st., Moscow, 119333, Russian Federation
e-mail: i-ind@ipng.ru
Kazimir V. Kovalenko – Dr. Sci. (Geology and Mineralogy), Leading Researcher, Oil and Gas Research Institute of the Russian Academy of Sciences
3, Gubkin st., Moscow, 119333, Russian Federation
Dilyara M. Gazizova – Master student, Almetyevsk State Oil Institute
2, Lenin st., Almetyevsk, 423450, Russian Federation
Almaz F. Sibgatullin – Master student, Almetyevsk State Oil Institute
2, Lenin st., Almetyevsk, 423450, Russian Federation
Daniil P. Anikeev – Cand. Sci. (Engineering), Senior Researcher, Head of Laboratory, Oil and Gas Research Institute of the Russian Academy of Sciences
3, Gubkin st., Moscow, 119333, Russian Federation
Nikita V. Shabalin – Master student, Almetyevsk State Oil Institute
2, Lenin st., Almetyevsk, 423450, Russian Federation
Kamil R. Sadeev – Head of the Group of the Field Development Department, Tatneft Dobycha SP Tatneft PJSC
75, Lenin st., Almetyevsk, 423450, Russian Federation
Azat A. Lutfullin – Cand. Sci. (Engineering), Deputy Head of the Department of Field Development, Tatneft Dobycha SP Tatneft PJSC
75, Lenin st., Almetyevsk, 423450, Russian Federation
Indrupskiy I.M., Kovalenko K.V., Gazizova D.M., Sibgatullin A.F., Anikeev D.P., Shabalin N.V., Sadeev K.R., Lutfullin A.A. (2023). Estimation of displacement efficiency for Devonian formations based on the results of specialized well tests Georesursy = Georesources, 25(2), pp. 236–244. https://doi.org/10.18599/grs.2023.2.17