A dimensionality reduction simulation method for CO2 transport based on plume radius matching

Abstract

The application discloses a CO2 migration dimensionality reduction simulation method based on plume migration radius matching, establishes a three-dimensional numerical model of a target reservoir, simulates CO2 migration by taking a preset three-dimensional injection rate, and obtains a three-dimensional CO2 plume at a preset time; based on the three-dimensional CO2 plume, the maximum lateral migration radius of CO2 is determined; a two-dimensional vertical profile model corresponding to the three-dimensional numerical model is established; an equivalent injection rate is determined, so that the lateral migration radius of the CO2 plume formed by the two-dimensional vertical profile model at the same preset time is matched with the maximum lateral migration radius. The application can greatly improve the calculation efficiency while ensuring the simulation accuracy of the key area, and provides an efficient and reliable simulation tool for long-term performance prediction and complex working condition analysis of the CO2 storage project under the coupling of multiple physical fields.

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