1. SEG Technical Standards Committee Meeting EAGE Conference London 2013 Tuesday Jun 11, 2013 Jill Lewis (jill@troika-int.com)

2. TSC meeting at the EAGE 2013 Overview Location: Novotel London Excel, Royal Victoria room Open TSC meeting15:00-16:00 Open TSC meeting15:00-16:00 SEG-Y Rev 2 discussion16:00-18:00 SEG-Y Rev 2 discussion16:00-18:00 The times are approximate. The room is reserved from 14:00 to 18:00

3. Technical Standards Committee 2013 Chair – Rune Hagelund (rune.hagelund@daeco.no) Chair – Rune Hagelund (rune.hagelund@daeco.no) Vice-chair – Bill Rimmer (<bill@rimmer.com) Vice-chair – Bill Rimmer (<bill@rimmer.com)

4. Important web addresses Technical standards Technical standards http://www.seg.org/ts http://www.seg.org/tshttp://www.seg.org/ts Technical Standards Committee online collaboration site Technical Standards Committee online collaboration site http://www.seg.org/tsc http://www.seg.org/tschttp://www.seg.org/tsc If you are interested in joining a workgroup or sub-committee, please submit a request at http://www.seg.org/tsc (or let us know now) http://www.seg.org/tsc

5. Agenda Proposals for new updates Proposals for new updates –SEG-D little-endian samples Ongoing work Ongoing work –SEG-Y 2.0 –SPS 3.0 –EM standard format sub-committee –Seismic field storage medium recommendations workgroup –Storage format recommendation workgroup AOB AOB

6. Proposed extention of SEG-D Proposal: Add support for little-endian samples Proposal: Add support for little-endian samples Rationale: Rationale: –Modern acquisition system (and processing systems) mostly uses little-endian CPUs –Converting to and from big-endian samples costs a lot of processing time and increases the cost of the systems –Comment: This only really applies to sample formats which maps directly to a CPU data type. Formats like 8015 or 8036 will not benefit much.

7. Proposed extention of SEG-D Technical proposal: Add new series of sample format codes, e.g. 90xx 9058 = Little-endian 4 byte IEEE float value. Add new series of sample format codes, e.g. 90xx 9058 = Little-endian 4 byte IEEE float value.

8. Proposed extention of SEG-D Questions: Is this a good idea? Is this a good idea? Can this be done as part of current SEG-D rev 3.0? Or do we need a format update? Can this be done as part of current SEG-D rev 3.0? Or do we need a format update? –The latter requires a longer process

9. SEG-Y Rev 2.0 Stewart Levin ( salevin@alumni.princeton.edu ) heading team Stewart Levin ( salevin@alumni.princeton.edu ) heading team Primary current activity of TSC Primary current activity of TSC Lots of industry interest Lots of industry interest Working documents www.seg.org/tsc - Documents/Format Development/SEG-Y/SEG-Y Rev 2.0 Working documents www.seg.org/tsc - Documents/Format Development/SEG-Y/SEG-Y Rev 2.0 www.seg.org/tsc Forum www.seg.org/tsc Forum/SEG-Y/SEG-Y Revision 2 Working Group Forum www.seg.org/tsc Forum/SEG-Y/SEG-Y Revision 2 Working Group www.seg.org/tsc

10. SEG-Y Rev 2.0 Quick overview from team

11. SPS 3.0 Team headed by Peter Green Team headed by Peter Green Not much progress since SEG 2012 Las Vegas Not much progress since SEG 2012 Las Vegas Team unfortunately not here to present status Team unfortunately not here to present status Question: Anyone interested in joining the team? Question: Anyone interested in joining the team?

12. EM sub-committee Headed by Friedrich Roth (froth@emgs.com) Headed by Friedrich Roth (froth@emgs.com)

13. Seismic field storage medium recommendations Group headed by Nils Aatland (n.s.aatland@fugro.no) Group headed by Nils Aatland (n.s.aatland@fugro.no)

14. Storage Format recommendations Headed by Jill Lewis (jill@troika- int.com) Headed by Jill Lewis (jill@troika- int.com)

15. AOB?

16. Thank you for attending!