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Baoji Dongjue Petroleum Technology Co., Ltd
APR :Downhole Drill Stem Testing(DST) Tools
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Hydraulic Jar
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baoji
3 1/8″ :
3 7/8″ :
5″ :
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The Hydraulic Jar is a straight-pull operated jar with a closed hydraulic system and a unique balance piston used to equalize oil pressure with tubing pressure. The hydraulic jar is also able to transmit torque to the right at any position along full stroke and helps free a stuck tool or tool string by resisting a pull on the workstring.Features
* Design of the hydraulic system ensures long life with little maintenance.* Rig time is reduced.
* Jar can be re-cocked rapidly.
* Jar time delay is adjustable.
* Amount of pull to trip the jar can be varied within the limits of the time-delay system.
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