SCOTON

Hydraulic-mechanical Drilling Jar DESCRIPTION Hydraulic-mechanical drilling Jar is a double acting jar, Hydraulic-mechanical drilling Jaris designed to deliver hydraulic delay when jarring in the up direction, and mechanical release when jarring in the down direction. It provides excellent functional stability and strong jarring forces in both jarring direction. It is used to free stuck drill string components and is recommended for directional/ deep wells drilling application. And our company is one of the typical drilling jar manufacturers .  Working principle of Hydraulic-mechanical Drilling Jar Up Jarring Lower the drill stem to ensure that drilling jar is closed completely (in locking position).Up jarring is achieved by slowly increasing the lifting force on the drill steam,until there is sufficient pull force to overcome the spring resistance and initial hydraulic time delay. During the time delay, the overpull at surface can be adjusted to vary...

SCJ type super fishing jar is a fishing tool that provides larger jarriing force when compared with others of the same specifications. This jar's structure is compact, performance is reliable and is easy to adjust and operate under different drilling conditions. The SCJ type super jar is a new type of top jarring tool used in oilfield, geological exploration and drilling operation. Working principle of  Super Fishing Jar SCJ type super fishing jar achieves the top jarring action by means of hydraulic mechanism. When the drill tool attached directly above the super fishing jar is raised, there is sufficient time for the drill tool to store elastic energy due to the damping action between the tapered piston and the sealing body. When the taper piston slowly moves to the release bore, the drill tool suddenly contracts and produces an upward dynamic load by the instant unloading of the pressurized hydraulic oil. A reliable impact working surface is designed in the product structure...