Analysis of International Experience of Carbon Dioxide Injection in Various Geological and Technological Conditions of Oil Field Development

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Abstract

Due to the growth of carbon dioxide in the atmosphere, reducing its emissions undoubtedly belongs to one of the most priority environmental tasks. At the same time, its injection into the reservoir in order to increase oil recovery can be considered as a promising method of CO2 utilization. The article considers the domestic and foreign experience of using this technology. The following methods used to supply CO2 to the reservoir were analyzed: injection of carbonized water, continuous injection of CO2, displacement of oil by cyclic injection of CO2 and water, as well as a number of alternative technologies. The processes of mixing, limited-mixing and immiscible displacement were described when using gas methods to increase oil recovery, thermobaric conditions of these processes were determined. The influence of the minimum mixing pressure on the efficiency of carbon dioxide injection was analyzed, the analysis of theoretical and experimental methods for studying these processes was carried out. The impact of carbon dioxide on the corrosion of field equipment was assessed. Conclusions about the necessity of using pipes made of high-alloy steel with a high chromium content with the additional use of protective nonionic surfactants when injecting carbon dioxide were drawn.

Keywords

enhanced oil recoverycarbon dioxide injectionminimum mixing pressurecorrosion of field equipmentsurfactants

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Article information

Published
22 March 2024
Issue date
22 March 2024
Issue
Vol. 23, No. 2 (2023)
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