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Troika International. WHO? Software House Seismic Data Input and Output, Media and Format Transfer, Quality Control, Standardisation And Compaction. Jill Lewis. Chair - Technical Standards Committee SEG Vice Chair 2005 - 2006 Chair 2006 – 200? Chair – SEGY Rev1.0 PESGB - PowerPoint PPT Presentation
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August, 2005 Troika International - Email: [email protected] Slide Number: 1
Troika InternationalTroika International
WHO?
Software House
Seismic Data Input and Output, Media and Format Transfer,
Quality Control,StandardisationAnd Compaction
August, 2005 Troika International - Email: [email protected] Slide Number: 2
Jill LewisJill Lewis
•Chair - Technical Standards Committee SEG•Vice Chair 2005 - 2006•Chair 2006 – 200?
•Chair – SEGY Rev1.0 PESGB •SEGY Rev 1.0 Sub-Committee SEG
•26 Years Data Transcription and Management•In Association IEEE Tape Deterioration Study
•(9 Track)•Media Study Published 1994
Formats
• Physical– 7, 9, 21 Track
• Structural/Density– 200, 356, 556, 712, 800,
1600, 3200, 6250 .......
• Data Structure – Word, XL, Lotus
– SEG
August, 2005 Troika International - Email: [email protected] Slide Number: 3
August, 2005 Troika International - Email: [email protected] Slide Number: 4
August, 2005 Troika International - Email: [email protected] Slide Number: 9
Tape ProblemsTape Problems
•9 track•Stiction (Interim Tape Cleaning)•Damage / Missing BOT (Physical Repair Kit) •Missing Burst (Viewer and Tape Drive Over-ride)•Skew Low Amplitude (Oscilloscope)
•3480/3490 •Solvent Leaching (Tape Head Aware)•Early Manufacture Chromium Dioxide Distribution
•Missing Documentation•Format Identification•Knowledge re: Complete Data-sets
Data Exchange FormatsData Exchange Formats
• 21 Track - SN 328, 338, TI9000, TI10000, TIAC• 7 Track – Freedom to develop own formats• SEG Technical Standard Committee
– SEGA – 30 Channel
– SEGB – SOS + 2.5 bytes per sample
– SEGC – SOS + 32 bits per sample
– SEGD – Addressed greater disciplines
– SEGX
– SEGDef
– SEGY
August, 2005 Troika International - Email: [email protected] Slide Number: 10
• 2005 Recognised that industry need update field acquisition format– ? Should the Committee try and come up with new format
– ? Should a new format be all things to all people
– Market Poll and companies wanted expansion of SEGD rather than SEGE
– Too much invested in software readers/writers
• Rev 2.1 Requested to enable use of High Capacity Media– Urgent to respond to high capacity media requirements of more than one line per
physical tape
• Ratified 2007
August, 2005 Troika International - Email: [email protected] Slide Number: 11
Technical StandardsTechnical Standards
• Where actually is the Data– Put Nav data into the headers
– Positioning Formats and UKOOA
• Disciplines Addressed– Ocean Sea Bed– Wireless– Telemetric– Passive
August, 2005 Troika International - Email: [email protected] Slide Number: 12
Why SEGD3.0Why SEGD3.0
• 11th June, 2008 at EAGE Rome 2008• 16 Attendees• Questions:
– Is a new format required – Yes of some sort
– Do we need field and processed format – Yes
– Does format need to self contained and media independant – Yes
– Could SEGD 3.0 be used with different attributes - Yes
• Sub-committee to advise on required attributes
• Report to TSC for distribution and commenting before SEG
– Process Format, current exchange methods to be sent to TSC to identify commonality and create a discussion document
August, 2005 Troika International - Email: [email protected] Slide Number: 13
EM And CSEMEM And CSEM
• SEGD Can be part of a true Data Management tool• Designed to handshake with Processing • Positioning Information• Multi Discipline• EPSG Compliant• Data Management Teams
– First Time Commonality
– Data from Field to Interpretation
• Rune Hagelund – Author SEGD 3.0
August, 2005 Troika International - Email: [email protected] Slide Number: 14
SEGD 3.0 - The DetailSEGD 3.0 - The Detail
