Effect of CO₂ Huff and Puff Rounds on Crude Oil Properties

Table 2

The ions of formation water.

Composition	Na^+ + K^+	Ca^2+	Mg^2+	SO4^2−	Cl^−	HCO3^−
Content (wt%)	0.2763	0.0072	0.0035	0.0338	0.3741	0.0290