| No. |
Processing History |
Line 88-18 |
| 1 |
Format Conversion |
Yes |
|
Demultiplexing |
Yes |
|
Record Length |
18 s (data correlated in field) |
|
Sample Interval |
0.004 s |
| 2 |
Merge-Master/Slave Files |
240 trace records |
| 3 |
Crooked-Line Geometry |
Yes |
| 4 |
Field Statics |
Yes |
| 5 |
Amplitude Compensation |
Geometric spreading (using a regional velocity function) |
| 6 |
CRP Sort |
Crooked profile adjustment |
|
Bin Width |
1000 m |
| 7 |
Deconvolution |
Minimum phase inverse filter |
|
Autocorrelation: |
|
|
Near Trace Start Time |
1 s |
|
Linear Start Time Velocity |
4500 m/s |
|
Stop Time |
17.5 s |
|
Number of Windows |
4 |
|
Average Window Length |
5 s; Overlap: 33 % |
|
Minimum Prediction Distance |
0.024 s |
|
Pre-Whitening |
0.1% |
|
Operator Length |
0.18 s |
|
Trace Balance Window |
2-8 s |
| 8 |
Residual Statics |
Yes |
|
Surface Consistant |
"Miser" used (automatic) |
|
NMO Correction |
Using one regional velocity function |
|
Window |
2-11 s |
|
Maximum Static |
+/- 0.03 s |
|
Residual Shot and Receiver StaticsCorrections |
Yes |
| 9 |
Velocity Analysis |
Yes |
|
Constant Velocity Stacks |
Velocities picked by Lithoprobe personnel |
| 10 |
Amplitude Equalization |
AGC |
|
Window Length |
1 s |
| 11 |
Pre-NMO Editing |
Trace edits (picked by Lithoprobe personnel) |
| 12 |
NMO Corrections |
Yes |
| 13 |
Mute |
First break (picked by Lithoprobe personnel) |
|
Common Offset Stacks |
Yes |
| 14 |
Stack |
Nominal 60 fold; Equal weighting |
| 15 |
Filter |
Bandpass (also applied to all intermediate Q.C. plots) |
|
Slope/Pass Band |
24-48 DB/OCT: 10-56 Hz |
| 16 |
Amplitude Equalization |
AGC |
|
Window |
1 s |
| 17 |
Noise Compensation |
Random noise attenuation (RNA) |