Environmentally Safe Technology to Increase Efficiency of High-Viscosity Oil Production for the Objects with Advanced Water Cut

Aleksandra Palyanitsina, Elena Safiullina, Roman Byazrov, Dmitriy Podoprigora and Alexey Alekseenko
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Aleksandra Palyanitsina: Oil and Gas Faculty, Saint Petersburg Mining University, 199106 St. Petersburg, Russia
Elena Safiullina: Oil and Gas Faculty, Saint Petersburg Mining University, 199106 St. Petersburg, Russia
Roman Byazrov: Oil and Gas Faculty, Saint Petersburg Mining University, 199106 St. Petersburg, Russia
Dmitriy Podoprigora: Oil and Gas Faculty, Saint Petersburg Mining University, 199106 St. Petersburg, Russia
Alexey Alekseenko: Oil and Gas Faculty, Saint Petersburg Mining University, 199106 St. Petersburg, Russia

Energies, 2022, vol. 15, issue 3, 1-20

Abstract: The depletion of conventional oil reserves creates a significant demand for the development and improvement of methods and technologies for the production of hard-to-recover oil. A huge potential for hard-to-recover oil in Western Siberia lies in the Pokur suite (PK). These deposits are characterized by high oil viscosity and, accordingly, early water breakthrough. This study identifies and substantiates an effective technology for oil production from such and similar deposits using polymer flooding. The obtained data are based on research of the geological structure, the main reservoir properties and those of its fluids, chemical and laboratory methods of analysis, and the results of mathematical and hydrodynamic modeling. According to the results of hydrodynamic modeling, the greatest technological effect of polymeric water flooding is observed in the model of collector permeability at 70 mD and above 1000 mD, but this technology is not recommended for reservoirs with an average permeability of less than 10 mD. Implementation of the best practices through the prism of the resource nexus allows sustainable water management by applying environment-friendly polymers for enhanced oil recovery and contributes to the UN Goal 6 of clean water and sanitation.

Keywords: polymer flooding; chemical EOR; mobility ratio; displacement efficiency; oil recovery; high viscosity oil; ecological technology; mathematical simulation; oil extraction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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