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

Upper Zone ESP / Lower Zone ESP (ESP Packer)

System 26: Dual Zone - Dual ESP - Concentric Tubing- Independent Production To Surface

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

Multiple reservoirs can be produced independently in the same well bore. In cases where the upper zone and the lower zone require an ESP, a dual zone completion can be used with concentric tubing strings to allow fiscal measurement of production from each zone or reservoir.

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.

Pump Support For Y-Tool Applications

Advantages

  • Increased production by producing two zones independently with dissimilar productivity
  • Allows fiscal measurement of production from each zone
  • Only need to drill one well to maximise production from both zones

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