Table 4 Comparative performance of PLA/Henna vs. conventional additives.

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

Additive type

Plastic viscosity (cp.)

Yield point (Pa)

Filtration volume (mL)

Spurt loss (mL)

Base fluid

27

9.07

10

2

PLA/Henna (2 wt%)

41

12.1

4

1

Xanthan Gum (2 wt%)

38–42

11–13

6–8

1.2–1.5

CMC (2 wt%)

35–39

10–12

7–9

1.5–2

Silica NP (1 wt%)

40–44

12–14

5–7

1–1.3

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