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Welcome and overview of AASPI accomplishments and software development

AASPI. Welcome and overview of AASPI accomplishments and software development. Kurt J. Marfurt Attribute-Assisted Seismic Processing and Interpretation. AASPI 2012 Sponsors. AASPI 2012 Personnel Changes. Araceli Romero– (M.S. Geophysics) – to PEMEX

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Welcome and overview of AASPI accomplishments and software development

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  1. 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) • OnurMutlu (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 C C’ 200 300 500ft 400 Time(ms) 500 600 700 800

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

  16. Time slice at t=0.6 s through amplitude volume after conventional migration Amplitude Pos 0 Neg 2km

  17. Time slice at t=0.6 s through amplitude volume after 3 iterations of PLSM Amplitude Pos 0 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 Coherence 12 1 3 8 2 1 4 0 0 1 0.6 0.8 0.2 0.4 -6E-5 -4E-5 -2E-5 0 0 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 Coherence 12 1 3 8 2 1 4 0 0 1 0.6 0.8 0.2 0.4 -8E-5 0 2E-5 -4E-5 0 Curvature Pos Neg 2km

  20. Agenda

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