Abstract
The paper assesses the techno-economic potential of Russia to implement carbon capture and storage technologies that imply the capture of anthropogenic CO2 and its injection into geologic reservoirs for long-term storage. The focus is on CO2 enhanced oil recovery projects that seem to be the most economically promising option of carbon capture and storage. The novelty of the work lies in the formulation of a potential assessment method of CO2 enhanced oil recovery, which allows for establishing a connection between energy production and oil extraction from the viewpoint of CO2 supply and demand. Using linear optimization, the most promising combinations of CO2 sources and sinks are identified and an economic evaluation of these projects is carried out. Based on this information, regions of Russia are ranked according to their prospects in regards to CO2 capture and enhanced oil recovery storage. The results indicate that Russia has a significant potential to utilize its power plants as CO2 sources for enhanced oil recovery projects. It has been estimated that 71 coal-fired power plants, and 185 of the gas-fired power plants of Russia annually produce 297.1 and 309.6 Mt of CO2 that can cover 553.4 Mt of the demand of 322 Russian oil fields. At the same time, the total CO2 storage capacity of the Russian fields is estimated at 7382.6 Mt, however, due to geological and technical factors, only 22.6% can be used for CO2-EOR projects. Of the 183 potential projects identified in the regional analysis phase, 99 were found to be cost-effective, with an average unit cost of € 19.07 per ton of CO2 and a payback period of 8.71 years. The most promising of the estimated regions is characterized by a well-developed energy industry, relatively low transportation costs, numerous large and medium-sized oil fields at the final stages of development, and favorable geological conditions that minimize the cost of injection. Geographically, they are located in the North-Western, Volga, and Ural Federal districts.
Highlights
The average efficiency of oil recovery in Russia, by different estimates, ranges between 27 and34%, and 65–70% of Russian oil remains untapped in the reservoir [1]
A regional analysis of the relative positions of CO2 sources and sinks leads to the following results: 1. The Northwestern Federal District is characterized by significant distances between large power plants (North-Western part—Leningrad, Vologda, Kaliningrad provinces) and oil-fields (Northern part—Komi Republic and Nenets Autonomous Area)
The transportation of CO2 captured from large power plants to the oil-fields of the Volga Federal District may be economically feasible
Summary
The average efficiency of oil recovery in Russia, by different estimates, ranges between 27 and. 34%, and 65–70% of Russian oil remains untapped in the reservoir [1]. With high sweep place in theindepleted fields is in the form flooded reserves. Efficiency, oil saturation of a can reservoir can as be 2–5%. Residual oilresidual saturation of a reservoir be as low the US was the leader in. 2-EOR prospects forfor several deposits in in Bashkortostan, Tatarstan and theSamara. Tatarstan and the quite positive—it positive—it was was found found that CO22 flooding could increase recovery efficiency by 13–15%; for financial financial reasons, reasons, the the projects projects were were discontinued discontinued[7]
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