Upper Zone Injection / Lower Zone ESP (ESP Packer)
Upper Zone Injection / Lower Zone ESP (ESP Packer)

Upper Zone Injection / Lower Zone ESP (ESP Packer)

System 20: Dual Zone - Single ESP -Concentric Tubing Strings

Flow Crossover Assembly (Independent Production To Sureface)
  1. ESP Gauge
  2. ESP Motor
  3. MLE Protector
  4. MLE Cable
  5. ESP Seal Protector
  6. ESP Pump Intake
  7. ESP Pump
  8. Discharge Pressure Sub
  9. Discharge Head
  10. ESP Packer
  11. Cross Coupling Clamp
  12. Offset Union
  13. Stinger
  14. Flow Crossover
  15. Outer Tubing (ESP Production From Lower Zone)
  16. Inner Tubing (Upper Zone Natural Flow Production)

Simultaneous production and injection can be achieved in a single well bore. Injection into the upper zone provides pressure support for the lower production zone to increase production.

Produced water from the lower zone can be recycled and injected back into the well. In this case an ESP packer is used to separate zones.

Compared to the seal bore packer, this configuration has no means of zonal isolation during workover, and requires sufficient distance between zones for the ESP packer and ESP.

Offset Union

Advantages

  • Injection to upper zone to boost lower zone reservoir pressure to increase production in a single well bore
  • Ability to recycle produced water from the produced zone and recycle into the upper injection zone

Disadvantages

  • No zone isolation during workovers
  • ESP cable potentially needs protection past upper perforations
  • Requires enough distance between zones for ESP packer and ESP

Download the Dual Zone ESP Completions Catalogue PDF