Research Article
Research on the Rate of Penetration Prediction Method Based on Stacking Ensemble Learning
Table 10
Comparison of predicted ROP data and actual ROP data.
(a) |
| | Bit tooth penetration freshness (%) | Bit tooth out freshness (%) | Bit tooth wear (%) | Bit pressure (kN) | Speed (r/min) | Drilling fluid circulation rate (L/s) |
| | 100 | 50 | 50 | 80 | 30 | 24 | | 100 | 90 | 10 | 40 | 50 | 50 | | 100 | 95 | 5 | 30 | 63 | 16 |
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(b) |
| | Drilling fluid density (g/cm3) | Funnel viscosity of drilling fluid (s) | The pressure drop of the bit (MPa) | The bit diameter (mm) | Actual average ROP (m/h) | Predicted average ROP (m/h) |
| | 1.6 | 57 | 0.53 | 215.9 | 3.8 (low) | <4 m/h | | 1.12 | 51 | 1.31 | 311.2 | 23.42 (high) | >15 m/h | | 1.2 | 51 | 0.13 | 149.2 | 2.16 (medium) | >1.5 m/h and <2.5 m/h |
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