1 |
Read SEGD data |
2 |
Zero-time corrections and cross-correlation with the
theoretical sweep |
3 |
Vertical stacking (4 repeated sweep records) |
4 |
Geometry setup (CMP spacing 10 m for both streamer and
wireless data) |
5 |
First-break picking |
6 |
Trace edit |
7 |
Surface-consistent refraction static
corrections |
8 |
Elevation static corrections (200 m, 5000
m/s) |
9 |
Notch filter: 60 Hz |
10 |
Predictive deconvolution (150 ms window and 24 ms
gap) |
11 |
Spectral balancing: 10-30-90-110 Hz |
12 |
Band-pass filter: 10-25-110-130 Hz (time
variant) |
13 |
Median filters (2500 m/s, 5000 m/s) |
14 |
AGC (300 ms) |
15 |
Velocity analysis (constant velocity stacks -
CVS) |
16 |
Local crossdip correction |
17 |
Surface-consistent residual static corrections (2
runs) |
18 |
NMO corrections (40% stretch mute) |
19 |
Stack (diversity) |
20 |
FX-deconvolution |
21 |
Balance amplitude |
22 |
Migration (phase shift, 5000-6500 m/s) |
23 |
Time-to-depth conversion (constant velocity, 6000
m/s) |
24 |
Export for plotting and 3D visualizations |