Table 7 The evaluation of fluid corrosion by measured parameters.

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

 

Coupon A

Coupon B

Coupon C

Coupon D

Fluid

CN4

CNG14

CNG24

CNG34

Length (mm)

58

57

57

63.6

Width (mm)

20

20

21

16.3

Thickness (mm)

4.18

4

3.64

2.5

Circle diameter (mm)

6.1

6

6.08

6.4

Previous weight (g)

36.5365

35.7143

31.3725

20.0480

Next weight (g)

36.5350

35.7132

31.3712

20.0470

Temperature (°F)

300

300

300

300

Corrosion rate (mpy)

0.829

0.589

0.720

0.599