1. 4. Spectral Decomposition
AASPI
Welcome and overview of AASPI accomplishments and software development
Kurt J. Marfurt
Attribute-Assisted Seismic Processing and Interpretation

2. AASPI 2012 Sponsors

3. AASPI 2012 Personnel Changes
Araceli Romero– (M.S. Geophysics) – to PEMEX
Yoryenys del Moro (M.S. Geophysics) – to Noble Energy
Nabanita Gupta (Ph.D. Geology) – to Shell
out
Trey White (M.S. Geology) – to Pioneer (if they like him!)
Ben Dowdell (M.S. Geophysics) – to Noble Energy
Roderick Perez (Ph.D. Geophysics – to BP
Jordan Myers (M.S. Geology) – at Chaparal
going
Tengfei Lin (M.S. Geophysics)
Onur Mutlu (M.S. Geophysics)
Larry Aboaba (M.S. Geophysics)
Trey Stearns (M.S. Geophysics) in in
Jamie Rich (Asst. Prof. of Geophysics!)

4. AASPI 2012 Software Development
85% of the port to multiplatform performance (Linux and Windows 7)
GUI connection to application programs via parameter files
Device independent graphics
C library utilities to simplify GUI maintenance and port
implemented “intelligent” GUI defaults and expanded GUI provided documentation
two python scripts to replace shell scripts (only 30 to go!)
all but one SEP module (Math) gone!
Developed and released (some in December 2012) the following new algorithms
gtm – clustering using generative topographic maps
cwt – Marcilio’s version of spectral decomposition with bandwidth extension
Phase residue mapping of unconformities
High resolution (factor component) velocity analysis
complex_stratal_slice (stratal slices of complex spectral components)
complex_pca_spectra (PC-filtering of complex stratal slices)
crossplot (plots two attributes and displays against a 2D color bar)
Prototyped the following new algorithms
Constrained 3D least-squares prestack time migration (input for diffraction imaging)
Developed multiple utilities
aaspi_mpi_kill (kills MPI jobs)
aaspi_cleanup (cleans up the large number of intermediate files)
aaspi_set_default parameters (sets installation or personal defaults)
aaspi_geometric_workflow (defines a common multiattribute workflow)

5. AASPI 2012 Geologic Focus Barnett Shale Woodford Shale
Mississippi Lime
Red Fork Channels
Fractured Basement
Conglomerate “Wash” (Mexico)

6. AASPI Software

7. geology.ou.edu/aaspi
documentation

8. Most applications have a flow chart

9. Many applications now have gray “Theory” boxes

10. Followed by instructions defining parameters and how to complete the GUI

11. These are followed by references and examples

12. Preconditioned least-squares migration (Shiguang Guo M.S. thesis)

13. 2km C C’
Time structure map of the top Mississippian Lime horizon C C’
2km
400
500ft
600
Time(ms)
800
Vertical slice along the CC’

14. Line CC’ after 3 iterations of PLSM
200
300
500ft
400
Time(ms)
500
600
700
800

15. Line CC’ after conventional migration
200
300
500ft
400
Time(ms)
500
600
700
800

16. Time slice at t=0.6 s through amplitude volume after conventional migration
Pos
Neg
2km

17. Time slice at t=0.6 s through amplitude volume after 3 iterations of PLSM
Pos
Neg
2km

18. Top Mississippi Lime horizon slice through co-rendered most negative curvature and coherence volume after conventional migration %
Histogram(Coherence ) %
Histogram(curvature) 16 5 4 12
Coherence 3 1 8 2 4 1
0.2
0.4
0.6
0.8 1
-6E-5
-4E-5
-2E-5
Curvature
Pos
Neg
2km

19. Top Mississippi Lime horizon slice through co-rendered most negative curvature and coherence volume after 3 iterations of PLSM %
Histogram(Coherence ) %
Histogram(curvature) 16 5 4 12
Coherence 3 1 8 2 4 1
0.2
0.4
0.6
0.8 1
-8E-5
-4E-5
2E-5
Curvature
Pos
Neg
2km

20. Agenda Time Presenter 8:00-9:00 CONTINENTAL BREAKFAST 9:00-10:00
POSTERS
10:00-11:45
Presentations
12:10-13:00
LUNCH
13:00-14:15
14:15-15:45
POSTER BREAK
15:45-17:00
17:00-19:00
WINE, BEER, CHEESE AND FEEDBACK