Penetration rate - Drill-rate model - Alternative equation
Input(s)
\(K^{\prime}\): Drill-Rate Model Proportionality Constant (dimensionless)
\(N\): Bit rotating Speed (rev/min)
\(a_{N}\): Rotating Speed Exponent (dimensionless)
Output(s)
\(R\): Penetration Rate \((\mathrm{ft} / \mathrm{h})\)
Formula(s)
\[
\log R=\log K^{\prime}+a_{N} \log N
\]
Reference(s)
Watson, D., Brittenham, T., & Moore, P. L. (2003). Advanced Well Control (Vol. 10). Society of Petroleum Engineers, Page: 49.