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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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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

  • 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!)


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)


AASPI 2012 Geologic Focus

  • Barnett Shale

  • Woodford Shale

  • Mississippi Lime

  • Red Fork Channels

  • Fractured Basement

  • Conglomerate “Wash” (Mexico)


AASPI Software


geology.ou.edu/aaspi

documentation


Most applications have a flow chart


Many applications now have gray “Theory” boxes


Followed by instructions defining parameters and how to complete the GUI


These are followed by references and examples


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


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’


Line CC’ after 3 iterations of PLSM

C

C’

200

300

500ft

400

Time(ms)

500

600

700

800


Line CC’ after conventional migration

C

C’

200

300

500ft

400

Time(ms)

500

600

700

800


Time slice at t=0.6 s through amplitude volume after conventional migration

Amplitude

Pos

0

Neg

2km


Time slice at t=0.6 s through amplitude volume after 3 iterations of PLSM

Amplitude

Pos

0

Neg

2km


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


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


Agenda


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