Maximum Drilling Rate
Maximum Drilling Rate - Large hole formula |
||
| \( MDR \;=\; 67 \; ( MW_o - MW_i ) \; C_r \;/\; D_h^2 \) | ||
| Symbol | English | Metric |
| \( MDR \) = Maximum Drilling Rate | \(ft\;/\;hr \) | - |
| \( MW_o \) = Mud Weight Out (ppg) | \(lbm \;/\; gal\) | - |
| \( MW_i \) = Mud Weight In (ppg) | \(lbm \;/\; gal\) | - |
| \( C_r \) = Circulation Rate (gpm) | \(gal \;/\; min\) | - |
| \( D_h \) = Drill Hole Size | \(in\) | - |
Tags: Drilling