| No. | Processing History | Line 1B |
|---|---|---|
| 1 | Format Conversion | SEG-D to WGC code-4 |
| 16.384 s (data correlated in field) | ||
| 0.004 s | ||
| 2 | Pre-Processor | Yes |
| Line | ||
| Yes | ||
| 3 | Amplitude Compensation | Geometric spreading using regional velocity |
| 4 | CRP Sort | Crooked profile adjustment |
| 5 | Deconvolution | Minimum phase inverse filter |
| Yes | ||
| 0.2 s | ||
| 6000 m/s | ||
| 16.384 s | ||
| 5 | ||
| 0.024 s | ||
| 0.18 s | ||
| 0.1 % | ||
| 2-15 s | ||
| 6 | Drift and Weathering Statics | Extended generalized reciprocal method (EGRM); Statics corrected from surface to datum |
| 400 m ASL | ||
| 6000 m/s | ||
| 7 | Residual Statics | Yes |
| Automatic (Miser) | ||
| Using regional velocity function | ||
| 1-11 s | ||
| +/- 0.024 s | ||
| 8 | Velocity Analysis | Velocity picked by Lithoprobe personnel |
| Yes | ||
| 9 | NMO Corrections | Yes |
| 10 | Mute | First break- from shot record displays (picked by Lithoprobe personnel) |
| 11 | Trim Statics | Using noise attenuated stack as model |
| 1-10 s | ||
| +/- 0.02 s | ||
| 12 | Inverse NMO Correction | Yes |
| 13 | DIP Moveout | Common offset domain; Partial stack |
| 30 fold gathers | ||
| 14 | Velocity Analysis | Velocity picked by Lithoprobe personnel |
| Yes | ||
| 15 | NMO Corrections | Yes |
| 16 | Stack | Nominal 60 fold |
| 17 | Pre-Filter Signal Enhancement | Random Noise Attenuation (RNA) |
| 18 | Filter | Time Variant |
| 24/48 DB/OCT | ||
| (0 s: 20-55 Hz); (2.5 s: 20-55 Hz); (5 s: 12-56 Hz); (16.384 s: 12-56 Hz) | ||
| Between specified times | ||
| 19 | Amplitude Equalization | Yes |
| (0-0.5s); (0.5-1 s); (1-1.5 s); (1.5-3.5 s); (3.5-5.5 s); (5-16.384 s) | ||
| 20 | Migration | FK Stolt (using 90 % DMO velocities) |
| Other Formats Processed | Comments |
|---|---|
| Structure Stack | Yes |
| DMO Stack | Yes |
| Migrated Structure Stack | No |