HYDRAULIC JAR

Delivers an upward shock to help free stuck tools in the well bore
HYDRAULIC JAR

DESCRIPTION

The Hydraulic Jar is used in the event that equipment becomes stuck in the well bore, and provides an upward shock to assist in freeing the tools.

Over-pull at surface is applied to the string, which causes oil to move through a flow restrictor. This hydraulic delay allows energy to be stored in the string. At the end of the stroke, the restriction is removed causing the mandrel to move rapidly upward. This results in a sudden impact to help free the stuck tools. If the tools are not free, a downward stroke resets the Hydraulic Jar for the next attempt.

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FEATURES

  • Provides temporary resistance so that energy is stored in the stretched drill pipe prior to firing
  • No resistance to reset
  • Can be fired multiple times

APPLICATIONS

  • Drill stem testing
  • Tubing-conveyed perforating
  • Well flow operation

Competitor Comparable Tools

Competitor/Tool Name Model
Schlumberger Hydraulic Jar JAR-F
Schlumberger Slim JAR-G
Halliburton Pressure-Balanced Jar
Halliburton Big John Hydraulic Jar
Expro Hydraulic Jar JAR
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