Project Description

Hydraulic/Mechanical Drilling Jar

The Wenzel Downhole Tools Hydraulic/Mechanical Drilling Jar (HMJ) is a double acting jar, designed to deliver hydraulic delay when jarring in the up direction, and mechanical release when jarring in the down direction.  The HMJ incorporates a latch mechanism to keep the jar locked in the neutral position and eliminate unexpected jarring while tripping or racking on the derrick.