Spring jar technical drawing with sectioned view

Wireline Spring Jar

The Hunting Spring Jar is designed to impact a very high impact load to a tool string without excessive jarring action

Product summary

The Hunting Spring Jar is designed to impact a very high impact load to a tool string without excessive jarring action

With a reasonably short tool string, an upward pull on the wireline compresses the jar spring until such time as the inner ring has moved up enough to allow the balls to move in from the external ring allowing the jar to ‘fire’.

Applications

  • Spring Jars provide an upward jarring action and are commonly run with mechanical jars on either standard intervention operations, or fishing operations.

  • Spring jars are run above the mechanical jars and below the stem

Features

  • Design to impact a toolstring with a greater load without excessive jarring actions

Benefits

  • Reduces excessive jarring actions

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