Aquisition Parameters | Processing Parameters | Data Sets | PDF
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Aquisition Parameters
Grand Lake
Recording System: Opseis Eagle
Energy Source: 11 lbs @ 160 ft
Spread Geometry: 6 lines of 180 channels
Receiver Lines: 220 ft intervals; 1980 ft apart
Source Lines: 220 ft intervals; 1980 ft apart
Nominal Fold: 30
Cell Size: 110 x 110 ft
Average Far Offset: 20,000 ft
Survey Completed: 1998
Black Bay
Recording System: Sercel 368 / Opseis Eagle
Energy Source: Airgun 640 in.3 and Pentolite 5.5 lbs @ 100 ft
Spread Geometry: 2 lines of 180 channels airgun source / 6 lines of 180 channels Pentolite source
Receiver Lines: 220 ft intervals; 1980 ft apart
Source Lines: 220 ft intervals; 1980 ft apart / 110 ft intervals; 1760 ft apart
Nominal Fold: 30 / 90
Cell Size: 110 x 110 ft
Average Far Offset: 20,000 ft
Survey Completed: 1999
Processing Parameters
Pre Stack
Data initialization
Gain correction
Refraction statics
Deconvolution (minimum phase)
Velocity analysis
3D surface consistent residual statics
DMO velocities
Trace equalization
3D DMO
3D migration (one pass phase shift plus interpolation)
CDP sort
Velocity analysis
3D stack
Tau-P noise reduction
Post Stack
Reformat and resample to 4 ms sample rate
Spherical divergence, gain recovery and trace edit
3D geometry definition, Q.C. and application
Binning of data into a 110 x 110 ft bin grid
Deconvolution
3D refraction statics analysis and application
Preliminary 3D velocity analysis
3D surface consistent automatic statics
3D velocity analysis
3D surface consistent statics
3D DMO on velocity subset
3D DMO velocity analysis
3D DMO and CMP stack
3D migration - PSPI algorithm
3D Tau-P noise reduction
Final filter / final scale
Available Data Sets
Geometry Gathers
Stack Volume
PostStack Time Migration Volumes
Phase Shift Plus Interpolation PreStack Time Migration (PSPI PSTM) Volumes
PSPI PSTM Gathers
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