Wettability Alteration of Sandstone by Chemical Treatments

Table 2

Contact angle of the sandstone after treated with FC911.

Concentration of FC911 (%)	0	0.1	0.2	0.3	0.5	1
Contact angle (°)
Brine	43	65	72	80	40	40
Normal decane	12	64	68	74	52	76