Mud rheology - Power-law model - Power-law index
Input(s)
\(\theta_{\mathrm{a}}\): Fann Dial Reading at \(600 \mathrm{Rpm}(\mathrm{cP})\)
\(\theta_{\mathrm{b}}\): Fann Dial Reading at \(300 \mathrm{Rpm}(\mathrm{cP})\)
Output(s)
n: Power Law index (dimensionless)
Formula(s)
\[
\mathrm{n}=3.322 * \log \left(\frac{\theta_{\mathrm{b}}}{\theta_{\mathrm{a}}}\right)
\]
Reference(s)
Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015. Houston, Texas, Page: 194.