Dual Action Coiled Tubing Spring Jar

The DTI Dual Action CT Spring Jar enables repeatable upward or downward jarring blows to the work string.

The amount of tension or compression placed on the coiled tubing in order to fire the jar is dependent on the amount of preload placed into the jar springs, which is adjustable at surface.

The release loads are relatively light, typically 1500LBS – 5000LBS, depending on Jar Outside Diameter size. Because there is no hydraulic chamber inside the Jar, it is not susceptible to high temperature, has increased impact ratio and requires very little force to re-cock.

The DTI Dual Action CT Spring Jar is simple to operate and to redress. A calibration tool is available in order to surface test the Jar release load.