1. 3D Seismic Processing
Eric Verschuur
AES 1530

2. 3D marine acquisition

3. 3D marine acquisition One sail line fills one strip of midpoints
repeat with parallel sail lines
Midpoint area

4. 3D seismic acquisition Fold plot or coverage plot:
number of traces per bin cell

5. true midpoints plotted in bin cells
3D seismic acquisition
Midpoint scatter:
true midpoints plotted in bin cells

6. 3D seismic acquisition Along on in-line, fixed cross-line:
plot of offset versus midpoint

7. 3D CMP gathers

8. 3D processing Geometry assign CMP sorting Velocity analysis
NMO correction
3D DMO correction
Stacking
3D migration

9. 3D migrated result

10. 3D interpretation

11. 3D interpretation

12. 3D interpretation: integrated displays

13. 3D filtering for interpretation

14. Interpretation of 3D image

15. Where should we drill? ? ? ?