Tam Hidrolik Delme kavanozu Tipi "Qyii"

Full Hydraulic Drilling Jar Type "QYII" (here-in-after called "QYII" Jar) is a kind of unfreezing tool for drill string when they get stuck. It is an integral hydraulic jar with up jarring and down jarring. Adopted cone structure make tools of delay more stable, and more reliable performance. "QYII" type hydraulic with drilling jar delay functions available in shock released before the drill string stretching and fully elastic energy storage, and thus the optimum shock effect, When a bottom hole assembly becomes stuck, the jar can deliver an extra-heavy impact to unfreeze with up jarring or down jarring, thus normal drilling operation can be recovered quickly.
When the "QYII" jar is used, operators can adjust to pick it up or slack it off on surface to create up jarring impact or down jarring impact (without adjustment to the torque or outside part) and can adjust impact from very small range to the biggest range. The "QYII" jar can be operated easily and conveniently with high reliability and applied to downhole operations, such as drilling, coring, fishing, work over, etc.