Downhole tools
Drilling Jars
Mechanical and hydraulic jars that deliver impact to free stuck pipe.
Overview
Drilling jars deliver a sharp impact up or down the string to free stuck pipe. Hydraulic jars use a metered fluid delay to let the driller build up load before release; mechanical jars release at a preset load.
Dual-acting jars can fire both up and down. Choosing the right type, and placing it correctly in the bottom-hole assembly, decides how effective it will be when it is needed.
Key Features
- Hydraulic, mechanical and hydro-mechanical designs
- Up and down jarring capability
- Adjustable or preset firing loads
- Sealed designs for long service intervals
Applications
- Freeing differentially or mechanically stuck pipe
- Directional and extended reach wells
- Fishing operations
Need Drilling Jars?
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