Table 2.
Original23 and reprocessing parameters used to process some of the BABEL seismic profiles used for this study.
| Original processing (1990–1991) | Reprocessing (2019) |
|---|---|
| Frequency filter | |
| Editing | Editing |
| Balancing | |
| Resampling | |
| Spherical divergence compensation | Spherical divergence compensation |
| Bandpass filter (5-10-60-70 Hz) | |
| FK-filter | |
| Whole trace equalization | |
| Receiver array simulation | |
| Deconvolution | Wiener deconvolution (filter length of 135 ms; gap length 30 (0–3.5 s), 35 (5–23 s) |
| AGC (window of 3000 ms) | |
| NMO corrections | NMO corrections |
| Muting | |
| CDP Stacking | CDP Stacking |
| Band-pass filter (5-10-60-70 Hz) | |
| Shot and streamer correction | |
| FK-filter: Pass: polygonal | |
| Deconvolution | Coherency filtering (FX-deconvolution) |
| Balance | |
| Curvelet denoising for random noise attenuation | |
| FD migration | |
| Time-to-depth conversion (5500 m/s to 7500 m/s) |