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Hydra-Jar AP Double-Acting Hydraulic
Drilling Jar

Overview Library

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.

Jarring Operation Avoids Sidetracking and Redrilling, Saving More Than USD 1.3 Million

Drilling jar and impact tool recover stuck BHA on first attempt in Oman. Download tech report (0.33 MB PDF)


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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Library

Date Title Challenge Products Society
Nov 2012 Planning for Successful Jarring Operations - Effective Use of Drilling Impact Systems Helps Release Stuck Pipe Exploration Hydra-Jar AP SPE

Hydra-Jar AP Drilling Jar Delivers up to 1 Million Pounds of Impact Force

hydra jar animation thumbnail
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Accelerator AP Tool
and Hydra-Jar AP Ensure Optimum Impact Force

Hydra-Jar AP Drilling Jar & Accelerator AP Tool Impact Force
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Hydra-Jar AP Technical Specifications

Hydra-Jar AP Drilling Jar
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