Similar to our standard hydraulic/mechanical jar (HMJ) in design and operation, the benefits of a hydraulic delay downstroke make the double-acting hydraulic/mechanical drilling jar (DAHMJ) more effective for directional, horizontal, and extended-reach drilling. Additionally, no bleed-through operation is required when tagging or picking up off the bottom, making the DAHMJ ideal for compressional placement in the drill string.
- More effective jarring – Hydraulic delay in both upstroke and downstroke
- Engineered for high-friction directional, horizontal, and extended-reach wells – Allows weight stacking before firing, even while horizontal
- Continuous, consistent performance – Modified fluid shearing technology from the aerospace industry provides reliable firing
- Improved safety on the rig floor – The internal mechanical latch prevents unexpected jarring when making connections or drilling and eliminates the need for an external safety collar