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Lower Stage Tool Collar Stop Assembly

The Lower Stage Tool Collar Stop Assembly is used in conjunction with a packoff and Upper stage tool assembly.

Staged plunger lift is a method to get accumulated fluid from a lower depth to a point in the tubing where a plunger can effectively lift it to surface.  A standard stage tool design is comprised of a bottom hole bumper spring located at the end of the tubing string, a plunger, a stage tool assembly, and another plunger above the stage tool assembly.  The stage tool assembly has a dual acting seal assembly pack off to provide a seal to the tubing string and a standing valve to prevent slippage back through the spring.

The lower stage tool collar stop assembly seats the stage tool in a specific depth in the well via a standard collar stop setting procedures and  absorbs the shock of the lower plunger.

  • Material Options: Low Alloy Steel and Stainless Steel
  • Available in both 2.375 and 2.875 configurations
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