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Improved Management of the SAGD Steam Chamber via Inflow Control Devices

Improved Management of the SAGD Steam Chamber via Inflow Control Devices. Presented by Sudiptya Banerjee SPE Heavy Oil/Horizontal Well Special Interest Group Calgary, Alberta March 28 th , 2013. Uneven Production from a Horizontal Lateral.

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Improved Management of the SAGD Steam Chamber via Inflow Control Devices

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  1. Improved Management of the SAGD Steam Chamber via Inflow Control Devices Presented by Sudiptya Banerjee SPE Heavy Oil/Horizontal Well Special Interest Group Calgary, Alberta March 28th, 2013

  2. Uneven Production from a Horizontal Lateral • Sections of the lateral are favored for production due to the influence of: • Frictional pressure drop in the completion string • Variations in Kv and Kh along the wellbore • Variations in fluid composition and mobility • Non-uniform reservoir pressure along the lateral length

  3. Flow Control Devices: The Application to SAGD • Producer Flow Equalization: • Supplements injection flow control • Smaller variation in steam trap control liquid height • Potential to choke back live steam entering the producer (autonomous flow controllers only) • Injector Flow Equalization: • Even steam distribution/steam chamber growth • Higher sweep efficiency • Higher thermal efficiency • Potential for cheaper design (longer laterals, smaller ODs)

  4. Types of Flow Control Devices Frictional Geometry Big flow area, low velocity, viscosity sensitive Restriction Geometry Small flow area, high velocity, partially viscosity insensitive Varies; big flow area, low velocity, viscosity insensitive Autonomous Geometry

  5. Performance Characterization Hybrid Geometry

  6. Visualizing the Fluid Flow Path

  7. Fluid Dynamics in the Device (Oil, 189 cP)

  8. Fluid Dynamics in the Device (Water, 1 cP)

  9. Case Study – SPE 153706

  10. Bitumen Production

  11. Cumulative Steam-Oil-Ratio (CSOR)

  12. Conclusion • Improved steam injection correlates to better thermal efficiency • Use of autonomous flow control devices in the producer provides additional confidence in steam trap control • Modeling critical to proper application • Questions?

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