Numerical Modeling of CO₂ and Brine Leakage through Open Fracture in a Fault Zone: Open Channel Flow or Darcy Flow

Figure 6

Distributions of the dissolved CO₂ mass fraction , gas saturation , and gas phase flow rate along the fracture profile in Case  1 during the few days around the breakthrough of CO₂-rich phase at 258th day. Note that the fraction of dissolved CO₂ constantly becomes saturated if gas phase CO₂ evolves, working as a flag to trace the occurrence of two phases in fracture.

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