Aquisition Parameters | Processing Parameters | Data Sets | PDF
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Aquisition Parameters
Contractor: Eagle July 1995
Acquisition Patch: 6Rx line x 180ch split spread brick (660ft step)
Receiver Lines: NE/SW @ 1760ft
Receiver Interval: 220ft
Source Lines: SE/NW @ 1980ft
Source Interval: 220ft
Energy Source: 11lbs Pentalite @ 100ft
Bin Size: 110 x 100ft
Nominal Fold: 38
Recording System: OpSeis Eagle (24 bit); 3-206Hz
Record Length: 8 seconds @ 2ms
Available: January 2000
Processing Parameters
1995 PoSTM by Western Geophysical
Demultiplex and resample to 4ms
Geometry Assignment
Spherical Divergence
Bin Sorting
Surface Consistent Deconvolution
Surface Consistent Gain
Spectral Whitening
Datum Statics
Residual Statics (two passes)
Velocity Analysis @ ½mi² (two passes)
DMO Stack
Migration
Post Migration Enhancement
2008 PrSTM by Geokinetics
SEG-Y to Internal Format
Geometry Assignment
Spherical Divergence & GeoSpreading
Minimum Phase Conversion
Geometry QC/Refraction Statics (datum = MSL @ 6000ft/sec)
Surface Consistent Spiking Deconvolution
Surface Consistent Gain
Noise Attenuation
Velocity Analysis (@ 2mi² & 1mi²) & Residual Statics (two passes)
PrSTM Velocity Analysis @ 1mi²
Offset Binning/Regularization
Kirchhoff Ray Bending PrSTM
60° w/ 40,000ft aperture
29 offsets @ 660’
Residual Velocity Analysis @ ½mi²
Relative Amplitude Compensation
Raw Stack
Three Angle stacks
Time Variant Filter & Scaling
Available Data Sets
1995 PoSTM (23.8173mi²)
DMO Stack
Migration with RAAC
Migration with TVSW/RNA/TVF/RAAC
2008 PrSTM (24.0217mi²)
Full Offset Stacks (Raw & Final)
Angle Stacks (5-20°, 10-25° & 20-35°)
PrSTM gathers (Raw, RAC & RAC+PRT)
Final Stacking velocities
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