Table 1 Statistical analyses of the WOB and effective parameters.
From: A novel neural-evolutionary framework for predicting weight on the bit in drilling operations
Features | Variable | Descriptive index | |||||
|---|---|---|---|---|---|---|---|
Mean | Median | SD | Min | Max | Count | ||
Depth (m) | Input | 2559.33 | 2307.90 | 426.07 | 2149.80 | 3591.00 | 2250 |
RPM (1/min) | Input | 105.81 | 75.85 | 46.50 | 50.00 | 192.42 | 2250 |
ROP (m/hr) | Input | 5.16 | 4.62 | 3.52 | 0.22 | 43.42 | 2250 |
GPM (gal/min) | Input | 465.75 | 473.10 | 95.75 | 250.22 | 915.59 | 2250 |
WOB (Klb) | Output | 11.11 | 9.75 | 5.93 | 1.11 | 31.91 | 2250 |
