Numerical Investigation into the Impact of CO₂-Water-Rock Interactions on CO₂ Injectivity at the Shenhua CCS Demonstration Project, China

Figure 4

The horizontal distribution of changes in porosity, mineral volume fraction, and concentrations of major aqueous species and pH for different amounts of dolomite (a, b, and c), calcite (d, e, and f), and oligoclase (g, h, and i) at the depth of −75 m after 30 years of CO₂ injection.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

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(i)