Enhanced Wettability Modification and CO₂ Solubility Effect by Carbonated Low Salinity Water Injection in Carbonate Reservoirs

Table 2

Geochemical reactions.

Aqueous reactions	H^+ + OH^− H2O
	CO2 (aq) + H2O H^+ +
	H^+ + CaCO3 Ca^2+ +
	H^+ + MgCO3 + Mg^2+
	H^+ + + Na^+
	Ca^2+ +
	+ Mg^2+
	NaHCO3 + Na^+
	H^+ + MgOH^+ H2O + Mg^2+
	H^+ + NaOH H2O + Na^+
	CaSO4 Ca^2+ +
	Na^+ +
	MgSO4 Mg^2+ +
	Sr^2+ +
	SrSO4 Sr^2+ +
Mineral dissolution/precipitation	Calcite + H^+ Ca^2+ +
	Dolomite + 2(H^+) Ca^2+ + 2() + Mg^2+