© 2007 Petrolink International

Jon Curtis

President

© 2007 Petrolink International

WITS vs WITSML

A WITSML Data Stream

<nameWell>TEST</nameWell>   <nameWellbore>1</nameWellbore>   <  <indexType>Depth</indexType>   <startIndex>7051.0</startIndex>   <endIndex>7851.0</endIndex>   <indexCurve>DMEA</indexCurve>   <stepIncrement>1.5</stepIncrement>   <indexUnits>FT</indexUnits>   <curveDescription>Measured Depth</curveDescription>   </logCurveInfo>- <logCurveInfo>  <mnemonic>TIME</mnemonic>   <unit>S</unit>   <nullValue>-999.2500</nullValue>   <curveDescription>Time</curveDescription  <mnemonic>ACTC</mnemonic>   <unit />   <nullValue>-999.2500</nullValue>

A WITS 0 Data Stream

&&0201Operator Name 1-5a0202102031520204169902270.973022888710229484!!&&1401 Operator Name 1-5a14021140888711419-9.25142026614211484!!

6

© 2007 Petrolink International

WITSML Office Aggregrator

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Real-Time Operations Centre

© 2007 Petrolink International

WITSML Office Aggregrator

© 2007 Petrolink International

• Contractor sends Depth and Time logs and Trajectory to WITSML store

• PowerStream reflects data edits made at the rig site

• TVD is true TVD: log is depth corrected at each survey station

• Memory data can replace realtime data as it becomes available

• Simplified operations - faster updates - higher data quality

Direct WITSML Data Feed

© 2007 Petrolink International

Integrated Displays

© 2007 Petrolink International

Real-Time Open Hole Analysis