SEG Technical Standards Committee Meeting EAGE Conference Vienna 2011 Wednesday May 25, 2011

Technical Standards Committee 2011 Chair – Rune Hagelund Chair – Rune Hagelund Vice-chair – Stewart Levin Vice-chair – Stewart Levin

Important web addresses Technical standards Technical standards Technical Standards Committee online collaboration site Technical Standards Committee online collaboration site

Agenda New releases New releases –SEG-D Rev 3.0, May 2011 update –SEG TSC online community New sub-committees/work groups New sub-committees/work groups –EM standard format sub-committee –“Seismic field storage medium recommendations” workgroup Status of SPS and new OGP P1/P2 Status of SPS and new OGP P1/P2 AOB AOB

SEG-D Rev 3.0, May 2011 Update of the SEG-D Rev 3.0 standard Update of the SEG-D Rev 3.0 standard No modification of the binary format No modification of the binary format Clarifications and ”bug fixes” Clarifications and ”bug fixes”

SEG-D Rev 3.0, May 2011 Various issues revealed with Nov 2009 version Various issues revealed with Nov 2009 version SEG Denver 2010 – update needed SEG Denver 2010 – update needed Meeting held in Oslo January 2011 Meeting held in Oslo January 2011 Updated version uploaded to Troika ftp site March 2011 for comments Updated version uploaded to Troika ftp site March 2011 for comments Final version May 2011 Final version May 2011 Published to SEG Technical Standards site Published to SEG Technical Standards site Release letter included Release letter included

Important clarifications Use of Extended Recording mode Use of Extended Recording mode –Non-continuous acquisition, length of traces, new example E11, etc. CRS definition, use of multiple stanzas CRS definition, use of multiple stanzas Source definition block structure, associating positions etc. with source. Source definition block structure, associating positions etc. with source. Usage of SEG-D when “millivolt” samples are undefined Usage of SEG-D when “millivolt” samples are undefined Extended channel type and physical unit list. Extended channel type and physical unit list.

Measurement block Still not to be used Still not to be used Awaiting Energistics completing Unit of Measure update Awaiting Energistics completing Unit of Measure update Weekly phone meetings Weekly phone meetings Need to clarify some structure issues Need to clarify some structure issues Hopefully done within a few months Hopefully done within a few months SEG San Antonio 2011 SEG San Antonio 2011

SEG Online Collaboration Site New site for exchange of information from the TSC New site for exchange of information from the TSC –Announcements –Document exchange –TSC forum –Wiki page RSS and subscription options available RSS and subscription options available

Discontinue use of Troika ftp/mail-lists The Troika ftp site and mail lists are discontinued as of May 2011 The Troika ftp site and mail lists are discontinued as of May 2011 All messages to and from the TSC will go through the new site. All messages to and from the TSC will go through the new site. User account at required User account at requiredwww.seg.org –Non-SEG members can create one Notification published in The Leading Edge June 2011 Notification published in The Leading Edge June 2011 To continue to receive info from TSC regarding standards development etc. you must subscribe to forums and announcements at the community site

Demo

EM sub-committee Launch in TLE April 2011 Launch in TLE April 2011 Headed by Friedrich Roth Headed by Friedrich Roth

New workgroup “Seismic field storage medium recommendations” “Seismic field storage medium recommendations” Official launch today Official launch today Will be published in TLE June 2011 Will be published in TLE June 2011 Group headed by Nils Aatland Group headed by Nils Aatland

Seismic field storage medium recommendations Appendix F (device recommendations) removed from SEG-D Rev 3.0 Appendix F (device recommendations) removed from SEG-D Rev 3.0 Industry has requested guidance on storage of seismic field data Industry has requested guidance on storage of seismic field data New storage media being discussed New storage media being discussed –Disk, flash devices, etc. Workgroup to produce recommendation document. Workgroup to produce recommendation document.

Seismic field storage medium recommendations Initial task: Define scope Initial task: Define scope Volunteers requested Volunteers requested

SPS and new P1/P2 formats Ownership of P# transferred to OGP in 2009 Ownership of P# transferred to OGP in 2009 Draft of new P1 and P2 format available (internal distribution only) Draft of new P1 and P2 format available (internal distribution only) P# adopted comma separated format similar to SPS 2.x P# adopted comma separated format similar to SPS 2.x Very flexible Very flexible SPS and P# expected to use similar (or identical) format SPS and P# expected to use similar (or identical) format Relationship between SPS and P# being discused Relationship between SPS and P# being discused Coordination meeting planned for late June Coordination meeting planned for late June

New P# formats New specification of Coordinate Reference Systems New specification of Coordinate Reference Systems Improved position specification Improved position specification Position quality information Position quality information Will likely affect SEG-D, SEG-Y. Will likely affect SEG-D, SEG-Y. –Update required –How and when to be discussed later (SEG San Antonio 2011)

AOB?

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