Braford PA Phase 1
Northeast Pennsylvania
358 square miles

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Aquisition Parameters

• Contractor:   Geokinetics
• Area:   ~358 mi2
• Template:   20 NW-SE receiver lines of 144 groups; NE-SW source lines with ½ step brick
• Source line & point interval:   1,320ft @ 220ft (98/mi2)
• Receiver line & point interval:   880ft @ 220ft (146/mi2)
• Maximum offset:   17,971ft
• Natural Bin Size:   110x110ft
• Nominal Fold:   120
• Source Type:   Dynamite 2.2lbs @ 20ft / Vibroseisas necessary
• Record length:  6sec
• Sample rate:  2ms
• Acquisition Period:  commenced Q2 2009

Anticipated Processing Sequence

1. Reformat & merge geometry
2. Trace Edit
3. Spherical Divergence Correction / Gain Recovery
4. Noise Suppression/Removal
5. Surface Consistent Amplitude Compensation
6. Preliminary Velocity Analysis @ 1mi grid
7. Refraction Statics Correction
8. Surface Consistent Deconvolution
9. Velocity Analysis Update @ 1mi grid
10. Residual Statics Correction
11. Data Regularization
12. Kirchhoff PreStackTime Migration (K PrSTM) ½mi grid for velocity analysis
13. Velocity Analysis for smoothed migration velocities
14. Kirchhoff PreStackTime Migration ½mi velocity lines for QC
15. Full Volume curved-ray K PrSTM->(Raw PrSTMgathers unflattened)
16. Final Stacking Velocity Analysis (¼mi grid)
17. Post migration conditioning->(NMO corrected PrSTMgathers)
18. Angle stacks (near, mid & far)
19. Stack->(Raw)
20. Post stack conditioning->(Conditioned)

Available Data Sets

1. Full offset 3D KPrSTMstack volume (SEG-Y)
   1. Raw
   2. Conditioned
2. KPrSTMgathers (SEG-Y)
   1. Raw w/ migration velocities removed (unflattened)
   2. NMO corrected, conditioned w/o mute
3. Partial angle stacks (SEG-Y);Near, Mid, Far
4. Velocity fields (ASCII)
   1. Migration
   2. Stacking