Aquisition Parameters | Processing Parameters | Data Sets | PDF
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Aquisition Parameters
Galveston / Trinity Bay
Recording System: Sercel 368
Energy Source: 640 and 1500 in ³ airgun arrays
Spread Geometry: 2 lines of 180 channels
Receiver Lines: 220 ft intervals; 2640 ft apart
Source Lines: 110 ft intervals; 330 ft apart
Nominal Fold: 9000%
Cell Size: 55 x 165 ft
Average Far Offset: 20,000 ft
Survey Completed: 1996
East Bay
Recording System: Sercel 368/360 Channels
Energy Source: 640 and 1500 in ³ airgun arrays
Spread Geometry: 2 lines of 180 channels
Receiver Lines: 220 ft intervals; 2640 ft apart
Source Lines: 110 ft intervals; 330 ft apart
Nominal Fold: 9000%
Cell Size: 55 x 165 ft
Average Far Offset: 20,000 ft
Survey Completed: 1997
East Bay Extension
Recording System: Sercel 368/360 Channels
Energy Source: 640 and 1500 in ³ airgun arrays
Spread Geometry: 2 lines of 180 channels
Receiver Lines: 220 ft intervals; 2640 ft apart
Source Lines: 110 ft intervals; 330 ft apart
Nominal Fold: 9000%
Cell Size: 55 x 165 ft
Average Far Offset: 20,000 ft
Survey Completed: 1997
Processing Parameters
Prestack
Data initialization
Deconvolution
3D refraction statics
3D velocity analysis
3D surface consistent residual statics
3D Kirchhoff prestack time migration
Radon demultiple
3D velocity analysis (0.5 x 0.5 mile grid)
CMP stack
Trace interpolation (55 x 82.5 ft)
3D Tau-P noise reduction
Poststack
Data initialization
Refraction statics computation and application
Surface consistent deconvolution
Trace balance
Zero phase frequence deconvolution
Velocity analysis 3 x 3 miles
Miser (auto statics)
Velocity analysis 2 x 2 miles
Relative amplitude, analysis, and compensation
Zone anomaly processing
Dip moveout correction (DMO)
Velocity analysis 0.5 x 0.5 miles
Final stack
Random noise attenuation
Trace interpolation 82.5 x 55 ft
Extended Stolt migration
Post migration F-K filter (crossline direction)
Post F-K Tau-P filter (crossline direction)
Available Data Sets
Geometry Gathers
Stack Volume
PostStack Time Migration Volumes
Kirchhoff PreStack Time Migration (kPSTM) Volumes
kPSTM Gathers
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