Experimental investigations of oil flow under pressure below bubble point pressure
https://doi.org/10.18599/grs.2025.3.27
Abstract
The article considers the features of live oil flow investigation under pressure below bubble point pressure and the methodology for performing special core analysis. Attention is focused on the technical and methodological aspects of the experimental studies: requirements for laboratory equipment, design of experiments, preparation of recombined oil samples, interpretation and analysis of the experimental results. The experiments were carried out for two lithotypes of reservoir rocks on elongated core models (84 cm) using a recombined model of reservoir oil with a GOR ≈ 50 m3/m3 and a bubble point pressure ≈ 80 bar. Based on the research results, inflow curves of core models were obtained for outlet pressure range from 30 to 70 bar. A decrease in the productivity coefficient due to the two-phase of oil and gas flow occurrence was estimated. The results of the experimental studies were analyzed taking into account theoretical concepts of investigated processes.
About the Authors
I. I. Ibragimov
Almetyevsk State Technological University “Petroleum Higher Schlool”
Russian Federation
Russian Federation
Ildar I. Ibragimov – Cand. Sci. (Engineering), Head of Laboratory, Associate Professor
186a Sovetskaya st., Almetyevsk, 423462
I. M. Indrupskiy
Oil and Gas Research Institute of the Russian Academy of Sciences
Russian Federation
Russian Federation
Ilya M. Indrupskiy – Dr. Sci. (Engineering), Chief Researcher, Deputy Director for Science
3 Gubkina st., Moscow, 119333
I. R. Kamalov
Almetyevsk State Technological University “Petroleum Higher Schlool”
Russian Federation
Russian Federation
Ilnur R. Kamalov – Master’s student
186a Sovetskaya st., Almetyevsk, 423462
M. V. Yanaykin
Almetyevsk State Technological University “Petroleum Higher Schlool”
Russian Federation
Russian Federation
Mikhail V. Yanaykin – Master’s student
186a Sovetskaya st., Almetyevsk, 423462
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Review
For citations:
Ibragimov I.I., Indrupskiy I.M., Kamalov I.R., Yanaykin M.V. Experimental investigations of oil flow under pressure below bubble point pressure. Georesursy = Georesources. 2025;27(3):243-251. (In Russ.) https://doi.org/10.18599/grs.2025.3.27
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