SEG Technical Standards Committee Meeting SEG Annual Meeting – Houston Tuesday Sept 24, 2013

Overview TSC meetings in Houston :00-3:00 Open public Technical Standards Meeting 2:00-3:00 Open public Technical Standards Meeting 3:00-4:00 SEG-Y rev 2 startup meeting (Stewart Levin) 3:00-4:00 SEG-Y rev 2 startup meeting (Stewart Levin) 4:00-5:00 SPS v3 meeting (SPS Sub-committee, Saudi Aramco) 4:00-5:00 SPS v3 meeting (SPS Sub-committee, Saudi Aramco) Anyone with an interest in the topics of the separate group meetings are invited to attend.

Agenda Admin Admin Status of SEGY 2.0 (Stewart Levin) Status of SEGY 2.0 (Stewart Levin) Status of SPS 3.0 (Joseph Cignoli) Status of SPS 3.0 (Joseph Cignoli) Launch of microseismic sub-committee (Shawn Maxwell) Launch of microseismic sub-committee (Shawn Maxwell) SEG-D new requirements (Rune Hagelund) SEG-D new requirements (Rune Hagelund) Short report from sub-committees and workgroups Short report from sub-committees and workgroups –EM data standard (Friedrich Roth) –Seismic field storage medium recommendations () –Storage format recommendations (Jill Lewis) AOB AOB

Technical Standards Committee Proposal: Chair – Bill Rimmer Chair – Bill Rimmer Vice-chair – TBD Vice-chair – TBD Retiring chair – Rune Hagelund Retiring chair – Rune Hagelund

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

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 use 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.

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.

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

SEG-Y rev 2

SPS rev 3

Microseismic

Sub-committees and workgroups

EM sub-committee Report from sub-committee Report from sub-committee

Seismic field storage medium recommendations workgroup Report from workgroup Report from workgroup

Seismic storage format recommendations workgroup Report from workgroup Report from workgroup

AOB?

Thank you for attending!