Table 2. Parameters of Cores for the Injectivity Study.

number	size (cm)	pore volume (cm3)	porosity (%)	permeability (×10–3 μm2)	injecting rate (mL/min)	injecting concentration (mg/L)
1	Φ 2.5 × 6.41	6.17	19.61	21.79	0.10	25 (CTAB)
2	Φ 2.5 × 6.47	6.03	18.9	22.3	0.10	20
3	Φ 2.5 × 6.45	6.18	19.5	24.8	0.10	50
4	Φ 2.5 × 6.43	6.05	19.2	26.7	0.10	100
5	Φ 2.5 × 6.49	6.21	19.5	25.9	0.10	200
6	Φ 2.5 × 6.41	6.12	19.4	23.5	0.10	500