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Zjs Type Jar Intensifier - China

price: contact company for price

The ZJS type jar intensifier is a kind of down hole fishing jar

designed to increase jarring energy to top jar .Therefore , it must be

run in conjunction with YSJ type hydraulic top jar or CSJ type super

jar. Its main function is to supply acceleration to the upper end of

the jar during the free jarring stroke. With a special function , the

intensifier is essentially a fluid spring which not only can

accelerate the top jarring action but also make the jarring action

directly to strike on the fish and reduce damages to the drill tool

and fishing tool.

Working principle

When it is used, the jar intensifier is connected on the top of drill collar and on the lower end of drill stem. When the fishing tool engage the fish and the drill tool is lifted up , the silicone oil in the top chamber of piston is compressed and a large number of energy is thus stored .During lifting , when top jar reach up to free impact stroke, the stored energy in the jar intensifier will suddenly release, the energy suddenly released will provide a very large acceleration for drill collar and top jar to move upward .When the top jar reaches up to max. stroke, a strong top jarring action will impact directly on the fish, as a result, one time jarring is produced, and more times jarring will be effected by repeating this course.

Company Contact:

  • Phone: +

  • Address: No.2999 ,XinYang Road,FengXian District, Shanghai, China

  • Email: Email

Published date: August 2, 2013 -

  • Business Description: Tianhe Oil Group,originally established in 1973, is a comprehensive

    enterprise of equipment manufacturing and oilfield service providing.

    We're specialized in innovating, manufacturing and sales of drill and

    petroleum extraction tools, equipments and oil field services.

    Tianhe Oil Group is a council member of CPEIA (China Petroleum and Equipment Industry Association), having been confered as a national Hi Tech company. Tianhe is a well known Chinese trademark. We've been certified in compliance with ISO, API, NS 1, and HSE management system,we have now high end machining centers like CNC turning centers from Mazak,all in one MILLTURN center from WFL Millturn Technologies GmbH&Co.KG as well as a wide range of other sophisticated tooling equipments.

    A strong domestic sales network has been established,covering all oilfields of CNPC, SINOPEC and CNOOC. Specifically today, we're exporting to 45 countries around the globe, overseas trading amount has topped over 80% of our business.

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