Table 5 Flac3D Vibration Velocity Monitoring Results.
Num of fracturing hole | S1 | S2 | S3 | |||
|---|---|---|---|---|---|---|
PPV/cm·s−1 | Inaccuracies | PPV/cm·s−1 | Inaccuracies | PPV/cm·s−1 | Inaccuracies | |
2 | 1.367 | 0.14% | 0.347 | 21.78% | 0.150 | 61.24% |
4 | 1.820 | 0.51% | 0.409 | 19.70% | 0.176 | 45.14% |
Num of fracturing hole | S1 | S2 | S3 | |||
|---|---|---|---|---|---|---|
PPV/cm·s−1 | Inaccuracies | PPV/cm·s−1 | Inaccuracies | PPV/cm·s−1 | Inaccuracies | |
2 | 1.367 | 0.14% | 0.347 | 21.78% | 0.150 | 61.24% |
4 | 1.820 | 0.51% | 0.409 | 19.70% | 0.176 | 45.14% |