A New Home for Old Data: The Preservation of Offshore West Coast United States 2D and 3D Seismic Dat

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A New Home for Old Data The Preservation of
Offshore West Coast United States 2D and 3D
Seismic DataA Working Model

• William C. Kempner ChevronTexaco
• Jon R. Childs U.S. Geological Survey

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Outline

• Archiving Objectives
• The Data Story
• The Data Inventory
• The Model for Data Transfer
• The Mechanics of the Transfer
• Conclusion

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ChevronTexaco Has Data

• West Coast Offshore 2D and 3D Seismic Data
• Acquired in 1960s, 70s and 80s during
  exploration of the West Coast margins
• Up to50,000 line miles of both proprietary
  seismic data, and data owned in partnership

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Requirements for (Any) Data Archiving or
Preservation Project

• A Good Story!......... A Vision
• You need Project Champions
• Usually people who
• Dont see clearly idealistic
• Dont know what they are getting into by
  default!
• Sense of Ownership and Responsibility
• Dont listen very well to people not interested
• PERSISTENT do what they think is right
• Cost Benefit Analysis It is still a
  business.it isnt free!
• Management, Legal, and Technical Support
• ??? Money

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ChevronTexaco Archiving Objectives

• Maintain the Integrity of the Data Set
• (as a single database if possible)
• Preserve Data
• Transfer to modern medium
• Give ChevronTexaco long term access
• Put the data in the Public Domain thru Internet
  Access

3 years to facilitate a process that meets these
criteria
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The Data Story!

• General Description
• 9 track tapes 10s and 10s of thousands
• Support Information Walls of Boxes and Boxes
• Films Stacks and Stacks
• The Good Story
• Data Archival is on the bottom rung of most
  corporate business plans!
• Area has no obvious near term potential for
  industry
• Has been fully expensed no write-off value
• Paying yearly storage costs which continue to
  increase (), while storage medium reaches its
  shelf life!
• One signature away from being destroyed!
• The data was expensive to acquire MM
• Never in public domain hasnt been accessed in
  10-15 years
• Invaluable resource to academic, engineering,
  geophysical communities

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Index Map for Offshore Seismic Data Coverage
Northern California
Central
Southern California
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Model for Offshore Seismic Data Preservation
CHEVRONTEXACO To Donate Seismic Data
Transfer Ownership
American Geological Institute
Grants Primary Distributorship
USGS NATIONAL ARCHIVE OF MARINE SEISMIC
SURVEYS (NAMSS)
PUBLIC ACCESS
http//walrus.wr.usgs.gov/NAMSS/
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CT Tape Storage Facilities (Proprietary Data)
Commercial Tape Storage Facilities (CT/Group
Data)
CT Hardcopy Storage
Business Structure
Physical Process Of Moving Data
CT
CT Transfers Ownership To AGI
3rd Party Onsite Transcription
AGI
AGI Grants Distributorship to USGS
3D Party/USGS Transcription
Films, Sepia, Support Data Sent to USGS
Academic Research, Grants, etc ICS
_at_UCSB SCECIRIS, and others Pay for Reprocessing
and Additional Tape Transcription
SCAN IMAGES
National Archive Of Marine Seismic Data Funding

USGS The NAMSS web site at walrus.wr.usgs.gov/N
AMSS/
USGS
PUBLIC ACCESS
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Conclusions

• CT, AGI and USGS are in the final stages of
  developing a process to transfer and preserve
  portions of the West Coast Offshore Seismic Data
• This coordinated effort fulfills the objectives
  of CT
• by preserving, updating and providing accessing
  to data
• This work has expanded the Role and Function of
  both the AGI and the USGS in preserving these
  invaluable data sets
• National Archive of Marine Seismic Surveys
  (NAMSS) the vision ...the solution

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• End