Table 16 Contact angles of thin sections during initial and secondary stages for various Fluids.

From: Experimental study on property enhancement of potassium Brines with alcohol additives for well completion applications

Fluid

Contact Angle Step

Average Contact Angle

Potassium Carbonate

Initial

50

Potassium Carbonate

Secondary

58

Potassium Carbonate-Sorbitol

Initial

49

Potassium Carbonate-Sorbitol

Secondary

58.5

Potassium Formate

Initial

53

Potassium Formate

Secondary

60

Potassium Formate-Sorbitol

Initial

51

Potassium Formate-Sorbitol

Secondary

59