Schlumberger

Thru-Tubing Double-Acting Tools

TT double-acting hydraulic jar

The TT double-acting hydraulic jar is a slimhole impact tool designed to free equipment stuck downhole. Jarring force is delivered on up and down strokes, and the tool’s small diameter makes it ideal for use in coiled tubing (CT) operations, snubbing, and small-diameter rotary drilling and fishing applications. The TT double-acting hydraulic jar has a robust design, high materials quality, and comprehensive quality requirements to ensure reliable performance in even the harshest downhole conditions.

Because the TT double-acting hydraulic jar is capable of torque transmission, it can be used with a downhole motor. The tool is equipped with premium seals for use in both high-temperature and high-pressure wells, and prolonged jarring can be accomplished with a temperature-compensated detent system. It also has a large bore to accommodate drop balls and flow release equipment below the tool.

TT double-acting accelerator

The TT double-acting accelerator is a slimhole impact-enhancement tool designed to multiply jar impact by providing or maximizing the stored energy source. It has a small diameter, making it ideal for CT operations, snubbing, and small-diameter rotary drilling and fishing applications.

This accelerator also acts as a shock absorber, preventing impact damage to BHA components like CT connectors and back-pressure valves. It has a nitrogen-filled compression chamber that stores tool energy while reducing tool length, as well as a large bore to accommodate drop balls and flow release equipment below the tool.

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Hydraulic Jar Specifications

TT Double-Acting Hydraulic Jar
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Accelerator Specifications

TT Double-Acting Accelerator
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