|ShoreMatter, the Shorematter logo and all other Shorematter marks contained herein are trademarks of
shorematter.com Intellectual Property. Other logos and trademarks are intellectual property of their respective owners.
External links are provided for reference purposes. Shorematter is not responsible for the content of external links.
A downhole tool used in conjunction with a jar
to store energy that is suddenly released
when the jar is activated. The energy provides
an impact force that operates associated
downhole tools or, in a contingency role, helps
release a tool string that has become stuck.
Depending on the operating mode, the energy
in tension or compression can be stored by
means of a mechanical spring or a
compressible fluid such as nitrogen gas.
Accelerators should be selected on the basis
of their compatibility with the jar to be used.