Pilot Production Performance Update And Utilization Factor Determination

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Pilot Production Performance Update And
Utilization Factor Determination
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Outline

1. Battery production update as of October 17, 2002
2. Comparison production Performances between
   Interior wells and ET ODaniel A-1
3. Utilization factor determination
4. Development of database using OFM

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Battery Production Update As Of October 17, 2002
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Comparison production Performances between
Interior wells and ET ODaniel A-1
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Effect of gas rate on oil production at ODaniel
A-1
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- Epics
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- Epics
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Utilization Factor
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Utilization Factor
Based on our gas compositional analysis we found
that production rate from interior wells, ET
ODaniel A-1 and Brunson F-1 affected by by CO2
flooding. Then, the net and gross utilization
factors calculations are taken on those wells
following the equation below
Gross Utilization Total CO2 Injected / Total oil
produced Net Utilization (Total CO2 Injected
Total CO2 produced)/Total oil produced
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Utilization Factor (Contd)

• Total CO2 injected 122, 687 MSCF
• Total CO2 produced at interior wells, ET ODaniel
  A-1 and Brunson F-1 63014 MSCF
• Total oil produced at ET ODaniel and Brunson F-1
  (see decline analysis) 6744 STB

Gross Utilization 18.2 MSCF/STB Net
Utilization 8.8 MSCF/STB
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Gross Utilization Calculation in other CO2 Pilots
(Assuming Bo1.3 and Sw0.65)
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Is OBrien B-1 production affected by CO2
flooding?
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Database in OFM?
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Example of Historical Oil Production
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Example of Tracer data