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Fengshou Industrial Park, Fengshou Village, Sandaoguan Town, Aimin District, Mudanjiang City, Heilongjiang Province,China

lyvia@mdjxinruide.com

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Hydraulic Up Jar

Hydraulic up jar is usedtobe freefromdrillingsticking, throughhydraulicprinciple,by means of elastic potential produced from drill tool elastic deformation.Once the elasticpotential energy is released, it would produce a large up striking load to reach apurpose of fishing and coring.Itfeatureseasystructures,strongjarringforce,easytoreturn,convenientoperation.Ifitis usedwithZJStypejarintensifier,itmaygainbetterjarringeffect.

The key principle is: the piston moves up and make hydraulic so that it makesenough time to make drill tool to save energy. With the piston continue to moveslowly to releasing bore, after the binding of hydraulic oil is released, elastic potentialis released by drill tool saved, immense dynamic loading is passed to drill tool dueto jar pad’s hitting on the bottom of up jar cylinder liner. A desire return mechanismmakesareciprocatingjarringaction.

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