Table 4 IFT values obtained for different brine/oil complex.

From: Theoretical and experimental investigation of the impact of oil functional groups on the performance of smart water in clay-rich sandstones

Oil sample

Water sample

IFT (mN/m)

Oil(A)

FW

41.4

Oil(A)

Ca50LSW

40.2

Oil(A)

Ca10LSW

38.2

Oil(A)

Na50LSW

37.4

Oil(A)

Na10LSW

36.3

Oil(B)

FW

33.4

Oil(B)

Ca50LSW

33.2

Oil(B)

Ca10LSW

32.9

Oil(B)

Na50LSW

33

Oil(B)

Na10LSW

32.6

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