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

SEG Technical SEG Technical Standards Standards CommitteeCommittee MeetingMeeting

SEG Annual Meeting – SEG Annual Meeting – HoustonHoustonTuesday Sept 24, 2013Tuesday Sept 24, 2013

Overview TSC meetings in Houston Overview TSC meetings in Houston 20132013

2:00-3:00 Open public Technical Standards Meeting2:00-3:00 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 4:00-5:00 SPS v3 meeting (SPS Sub-committee, Saudi

Aramco)Aramco)

Anyone with an interest in the topics of the separate group Anyone with an interest in the topics of the separate group meetings are invited to attend.meetings are invited to attend.

AgendaAgenda

AdminAdmin 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 Launch of microseismic sub-committee (Shawn

Maxwell)Maxwell) SEG-D new requirements (Rune Hagelund)SEG-D new requirements (Rune Hagelund) Short report from sub-committees and workgroupsShort report from sub-committees and workgroups

– EM data standard (Friedrich Roth)EM data standard (Friedrich Roth)– Seismic field storage medium recommendations ()Seismic field storage medium recommendations ()– Storage format recommendations (Jill Lewis)Storage format recommendations (Jill Lewis)

AOBAOB

Technical Standards Technical Standards Committee 2013-2014Committee 2013-2014

Proposal:Proposal:Chair – Bill Rimmer Chair – Bill Rimmer (bill@rimmer.com(bill@rimmer.com))Vice-chair – TBDVice-chair – TBD

Retiring chair – Rune Hagelund Retiring chair – Rune Hagelund (rune.hagelund@daeco.no)(rune.hagelund@daeco.no)

Important web Important web addressesaddresses Technical standardsTechnical standards

http://www.seg.org/ts

Technical Standards Committee Technical Standards Committee online collaboration siteonline collaboration site

http://www.seg.org/tschttp://www.seg.org/tsc

Proposed extention of Proposed extention of SEG-DSEG-D

Proposal: Add support for little-endian Proposal: Add support for little-endian samplessamples

Rationale:Rationale:– Modern acquisition system (and processing Modern acquisition system (and processing

systems) mostly use little-endian CPUssystems) mostly use little-endian CPUs– Converting to and from big-endian samples costs a Converting to and from big-endian samples costs a

lot of processing time and increases the cost of the lot of processing time and increases the cost of the systemssystems

– Comment: This only really applies to sample Comment: This only really applies to sample formats which maps directly to a CPU data type. formats which maps directly to a CPU data type. Formats like 8015 or 8036 will not benefit much.Formats like 8015 or 8036 will not benefit much.

Proposed extention of Proposed extention of SEG-DSEG-DTechnical proposal:Technical proposal:

Add new series of sample format codes, e.g. Add new series of sample format codes, e.g. 90xx 90xx 9058 = Little-endian 4 byte IEEE float value.9058 = Little-endian 4 byte IEEE float value.

Proposed extention of Proposed extention of SEG-DSEG-D

Questions: Questions:

Is this a good idea?Is this a good idea?

Can this be done as part of current Can this be done as part of current SEG-D rev 3.0? Or do we need a SEG-D rev 3.0? Or do we need a format update?format update?

– The latter requires a longer processThe latter requires a longer process

SEG-Y rev 2SEG-Y rev 2

SPS rev 3SPS rev 3

MicroseismicMicroseismic

Sub-committees and Sub-committees and workgroupsworkgroups

EM sub-committeeEM sub-committee

Report from sub-committeeReport from sub-committee

““Seismic field storage medium Seismic field storage medium recommendations” workgrouprecommendations” workgroup

Report from workgroupReport from workgroup

““Seismic storage format Seismic storage format recommendations” recommendations” workgroupworkgroup Report from workgroupReport from workgroup

AOB?AOB?

Thank you for attending!Thank you for attending!