Dual Back-Up ESP Systems

 

For wells with high workover costs or difficult access. In the event of an electrical submersible pump (ESP) failure, a back-up ESP already deployed in the well can be immediately turned on to maintain production and minimise the effect on oil well performance. The second ESP is suspended below the upper ESP with a bypass assembly. The bypass tubing provides a production path for the lower ESP.

Normally the upper ESP is run first to prevent temperature effecting the backup system runlife. The lower ESP can be appropriately sized to accommodate changes in well performance such as decreasing reservoir pressure or increasing water cut.

Replace the Y-block with the Zenith Auto Flow-Through tool for automatic switching between upper and lower ESPs. The Auto Flow-Through also prevents circulation from upper to lower ESP and vice-versa, and provides pump protection from descending solids on shut-down.
 
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Reduce operating expenses

  • Minimise lifetime intervention costs
  • Reduce downtime and deferred production when ESP failure occurs

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Features and specifications

 

With the engineering know-how to make certain the completion will integrate correctly with your ESP, the Zenith completion design team have extensive experience in ensuring each completion is fit-for-purpose to meet or exceed your oil production requirements.

 

Please contact Zenith for more information.

Related articles

 

In order to assist you in finding the solution to best fit your requirements, please see the following links to related product and service information throughout our website. For documentation and downloads, please visit the Resources tab.

 

 

 

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