Table 1.
Related research statistics.
| References | Method | Input parameters | Evaluation |
|---|---|---|---|
| Weiji Liu15 | BP-PSO |
WOB, RPM, Depth, PP, MW, ML, TOB, WOH, PL, BT, PT, TMP |
R2 = 0.9568 RMSE = 0.4853 |
| Ming Tang16 | BP-PCA |
MW, PL, Depth, TOB WOB, RPM, DC, ME |
R2 = 0.9566 RMSE = 6.5681 |
| Hegde8 | Decision Trees | WOB, RPM, Q, UCS |
R2 = 0.96 RMSE = 7.36 |
| Mehrad10 | LSSVM-COA |
UCS, FR, WOB, Depth, MD, RPM |
R2 = 0.405 RMSE = 0.802 |
| Naipeng Liu11 |
Stacked Model -PSO |
WOB, Depth, Q SPP, RPM, MW, T |
R2 = 0.9568 RMSE = 0.4853 |
| Hashemizadeh12 | RNN | Depth, WOH, BIT, RPM, | RMSE = 1.64 |
| RF | TOB, SPP, Q, MW, MV, HS, FH | RMSE = 1.29 | |
| Hu Yin13 | ARF | WOB, RPM, Q | / |
| Zhong Cheng14 | LSTM |
RPM, Depth, WOB, TOB, Q SPP, Pump Time, Pump total |
R2 = 0.96 |
WOB: Weight On Bit, MD: Mud Weight, RPM: Rotations Per Minute, Q: Flow Rate, TOB: Torque On Bit, SPP: Standpipe Pressure, ME: Modulus of Elasticity, BIT: Drill Bit, PP: Pump Pressure, MV: Mud Viscosity, MW: Mud Density, HS: Hole Size, ML: Formation Lithology, FH: Formation Hardness, WOH: Weight On Hook, FR: Mud Flow Rate, PL: Pump Flow, TMP: Temperature, BT: Bit Time, DC: Cutting Depth, PT: Pump Time.