Table 8 The TCT of three fluids CN4, CNG24 and CNG34 after exposure to temperature below 20 °F.

From: A novel formulation of an eco-friendly calcium nitrate-based heavy completion fluid

Brines

CN4

CNG14

CNG24

CNG34

TCT (℉)

 < 20

 < 20

 < 20

 < 20