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Hydra-Jar AP
Double-Acting Hydraulic Drilling Jar

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Overview

Highest-Impact Force Reliably Delivered

The Hydra-Jar AP double-acting hydraulic drilling jar enables the driller to jar up or down and vary impact force to free stuck drillstring components, minimizing NPT and avoiding sidetracking. And, when run with the Accelerator AP impact tool, the Hydra-Jar AP drilling jar delivers up to 1 million pounds of impact force—while protecting the drillstring and surface equipment from shock.

Rugged jar design ensures consistent impact

The Hydra-Jar AP is balanced to hydrostatic pressure through ports open to the wellbore, ensuring consistent hitting performance regardless of changes in downhole pressure or temperature. This hitting performance is further enhanced by the jar’s detent system: it enables the jar to load and fire consistently in a broad range of downhole conditions.

The Hydra-Jar AP drilling jar’s proven performance in high-temperature applications worldwide has established it as a best-in-class HT technology, which includes products and services for directional drilling and MLWD operations. 

Reliable jarring in all environments with BHA compatibility

The Hydra-Jar AP drilling jar is suitable for every drilling environment: land or offshore, vertical or deviated wells, and ultradeep or ultrahot boreholes. And, because the jar works without applied torque, directional drilling tools maintain their orientation throughout the jarring operation. 

Flexible and simple jarring operation

The Hydra-Jar AP drilling jar may be run in compression or tension, enabling optimized placement in the drillstring. The jar makes up, racks, and handles like a standard-length drillpipe, reducing trip time.

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Impact Control with the
Highest Jarring Force

Hydra-Jar AP
With the Hydra-Jar AP drilling jar, the driller has total control the direction, force, and frequency of impact.

Optimize Drilling Performance with HT Technology

High Temperature
Schlumberger drilling services run more than a million feet of hole per year at high temperatures—worldwide.
Visit HT Drilling Operations page

Hydra-Jar AP Specifications

Hydra-Jar AP Drilling Jar
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