Technical Session Summary

1
Technical SessionSummary

• 2003 POSC Seminar
• Houston 18/19 September 2003

2
WITSML Issues Collection

• Regular Technical Team conference calls through
  2002 to develop 1.2 standard
• Feedback to WITSMLTT Yahoo Discussion Group from
  technical team while developing prototypes
• Feedback to WITSML.org web site from general
  public
• Input from POSC Special Interest Group

3
Analysis of Issues

• 54 Issues Reviewed
• 25 resolved for current version (1.2)
• Errors in schema or example data
• Documentation changes
• Clarification of usage
• 50 for v1.2.1
• Minor schema changes and additions
• 25 deferred to v1.3
• Longer term schema changes

4
Issue Discussions

• Realtime object
• Should it be persisted on a WITSML Server?
• What happens if the server receives a
  DeleteFromStore message for Realtime objects?
• Log object discussions
• Additions to Log schema
• Relationship between log and realtime
• Alignment w/POSC PWLS
• Handling of sub-objects
• Improved schema to assist with processing objects
• Deleting wells
• Impacts on sub-well objects

5
WITSML Versions

• Preliminary Plan
• (Not approved by the Steering Board)
• V1.2 Now Q1 2004
• V1.2.1 From Q3 2004
• V1.3 From Q3 2005

6
WITSML Message

• If you want to implement WITSML, the v1.2
  standard is sufficiently mature and stable to
  develop commercial software against.
• In 2004, there will be many other systems
  available that implement the 1.2 version

7
Questions?

• http//www.WITSML.org