Mud rheology - Power-law

Input(s)

$\mathrm{K}$: Consistency Index $(\mathrm{cP})$

$\mathrm{n}$: Power-Law Index (fraction)

$\gamma$: Shear Rate $(1 / \mathrm{s})$

Output(s)

$\tau$: Shear Stress $\left(\mathrm{lbf} / 100 \mathrm{ft}^{2}\right)$

Formula(s)

$$ \tau=\mathrm{K} *\left(\gamma^{\mathrm{n}}\right) $$

Reference(s)

Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015. Houston, Texas, Page: 184.