No.1(41),2025 PP.185-194

Neftyanaya provintsiya No. 1(41), 2025

Research of the demulsifiers in order to increase the efficiency of oil production in carbonate reservoirs

N.R. Gazizov
DOI: https://doi.org/10.25689/NP.2025.1.185-194

Abstract

The article presents the results of laboratory studies to determine the efficiency of demulsifiers using artificial water-in-oil emulsions with oil from the Tournaisian stage of the Lower Carboniferous as an example. As a result of comparing the two reagents, it was found that the demulsifier based on nonionic surfactants (NIS) DE-1 was the most efficient for these samples. It differs from the reagent with NIS (DE-2) in its lower specific consumption, solubility in both water and oil, which allows it to be used in direct and inverse emulsions, and the absence of reaction with salts and acids. The issue of further studying the efficiency of demulsifiers for breaking emulsions remains relevant, since various complications often arise at the final stages of development, which can be prevented with the help of laboratory studies.

Key words:

water-in-oil emulsion, oil, demulsifier, emulsion stability, surface-active substance (surfactant), dehydration, microscopic studies, complications of oil production, oil emulsification, dispersity

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Authors

N.R. Gazizov, student, Almetyevsk State University of Technology – Higher Petroleum School
2, Lenin Str., Almetyevsk, 423458, Russian Federation
E-mail: gazizov.2002@mail.ru

For citation:

N.R. Gazizov Issledovaniye deemul'gatorov s tsel'yu povysheniya effektivnosti dobychi nefti v karbonatnykh kollektorakh [Research of the demulsifiers in order to increase the efficiency of oil production in carbonate reservoirs]. Neftyanaya Provintsiya, No. 1(41), 2025. pp. 185-194. DOI https://doi.org/10.25689/NP.2025.1.185-194. EDN QKWNFF (in Russian)

© Non-governmental organization Volga-Kama Regional Division of the Russian Academy of Natural Science, 2015-2025 All the materials of the journal are available under the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/)

Research of the demulsifiers in order to increase the efficiency of oil production in carbonate reservoirs N.R. Gazizov DOI: https://doi.org/10.25689/NP.2025.1.185-194

Key words: water-in-oil emulsion, oil, demulsifier, emulsion stability, surface-active substance (surfactant), dehydration, microscopic studies, complications of oil production, oil emulsification, dispersity

Authors N.R. Gazizov, student, Almetyevsk State University of Technology – Higher Petroleum School 2, Lenin Str., Almetyevsk, 423458, Russian Federation E-mail: gazizov.2002@mail.ru

Research of the demulsifiers in order to increase the efficiency of oil production in carbonate reservoirs

N.R. Gazizov
DOI: https://doi.org/10.25689/NP.2025.1.185-194

Key words:

water-in-oil emulsion, oil, demulsifier, emulsion stability, surface-active substance (surfactant), dehydration, microscopic studies, complications of oil production, oil emulsification, dispersity

Authors

N.R. Gazizov, student, Almetyevsk State University of Technology – Higher Petroleum School
2, Lenin Str., Almetyevsk, 423458, Russian Federation
E-mail: gazizov.2002@mail.ru