Drilling Mud Mixer: 2D Cross-Section and Rheogram

Mud recipe

Bentonite 5.0 wt%

Target mud weight 1.20 SG

XC polymer 0.5 ppb

Temperature 25 C

Mixer

Impeller speed 120 rpm

Impeller D/T 0.40

Impeller type

Readouts

Plastic viscosity

-

Yield point

-

Reynolds number

-

Impeller power

-

Cavern / tank

-

Mixing time

-

Homogeneity

-

Hydration

-

Barite suspension

-

Herschel-Bulkley: tau = ty + K gd^n; Metzner-Otto gd = 11 N; P = Np rho N^3 D^5; Grenville N theta = 5.2 Np^(-1/3) (T/D)^2; Elson cavern (Dc/D)^3 = 4 rho Np N^2 D^2/(pi^2 ty); barite stays suspended when ty/(g d drho) > 0.2.