Table 1 Statistical metrics for rheology profile matching.

From: Synthesis of polylactic acid/Henna polymer composite and its application in optimizing drilling fluid rheology and filtration performance

 

Matched equations

R2

Fluid type

Bigham plastic

Hershel Buckley

Newtonian

Power law

Bingham plastic

Hershel Buckle

Newtonian

Power law

Base

Y=

0.027X + 9.07

Y=

9 + 0.029*X0.98

Y=

0.0428X

Y=

6.8*X0.168

0.995

0.996

0.21

0.68

0.5 wt%

Y =

0.03X + 10

Y=

9.5 + 0.04 × 0.96

Y=

0.045X

Y=

7.6 × 0.165

0.991

0.992

0.22

0.69

1 wt%

Y =

0.033X + 10.2

Y=

9.4 + 0.05 × 0.94

Y=

0.049X

Y=

8.1 × 0.16

0.994

0.995

0.21

0.71

2 wt%

Y =

0.041X + 12.1

Y=

12 + 0.047 × 0.972

Y=

0.06X

Y=

9 × 0.18

0.999

0.999

0.22

0.68

4 wt%

Y =

0.041X + 12

Y=

12.2 + 0.055 × 0.95

Y=

0.062X

Y=

9.1 × 0.18

0.998

0.998

0.32

0.66

10 wt%

Y =

0.042X + 12.2

Y=

12 + 0.057 × 0.95

Y=

0.063X

Y=

9.3 × 0.17

0.999

0.999

0.21

0.61

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