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CO2 saturation monitoring is one of the key parameters to determine the geological storage of CO2. Because of the CO2-EOR or CO2 injection, the CO2-brine-rock interactions in reservoirs will lead to a series of complex changes in the mineral composition of rocks, porosity, pore structure, properties of formation water and residual oil saturation. At the same time, the difference of the CO2 spread...
In the process of CO2-EOR and post-EOR, CO2 injection broke the original physical and chemical balance in reservoirs, and caused the complex CO2-brine-rock interactions, meanwhile, it leaded to the variations of rock composition, clay mineral, porosity, pore structure, water salinity, water type and pore fluid. By analyzing the model, core experimental study, field implementation of detection and...
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