“QYIII” Full Hydraulic Drilling Jar

Model “QYIII” Full Hydraulic Drilling Jar is a kind of unfreezing tool when they get stuck. It is an integral hydraulic jar with up jarring and down jarring. It adopts the valve structure, making time-lag more stable and performance more reliable. The time-lag of Model “QYIII” Full Hydraulic Drilling Jar can generate the elastic elongation of drill string richly, reserving energy as to obtain the best jarring effect. When downhole tools are stuck, “QYIII” Full Hydraulic Jar can offer a huge impact force to unfreeze. As a result, common drilling operation can be regained rapidly.

When the “QYIII” 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 outside part) and can adjust impact freely within permissible range. The “QYIII” jar can be operated easily and conveniently with high reliability and applied to downhole operations, such as drilling, coring, fishing, workover, etc.

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