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For risk associated with storage of CO 2 under the Earth’s surface, the impervious cap is one of the most significant factors. Geological structures such as faults can provide conduits for CO 2 to escape through the cap. When conductive faults intersect the storage formation and overlying permeable layers, CO 2 leaks may exhibit three distinct behaviors: initial upward migration...
The injected CO 2 in a target formation can continue to migrate through permeable pathways due to geological heterogeneity as well as buoyancy. This movement drives a countercurrent flow of brine leading to increased residual phase trapping. The purpose of this simulation study is to understand the effects of geological structures, especially faults, on the dynamic behavior of the buoyancy-driven...
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