UN Thread Wireline Tools And Equipment 1.25" OD Downhole Alloy Steel Wireline Knuckle Jar

Wireline Knuckle Jar 1.25" OD Downhole Alloy Steel Wireline Jar

The knuckle jar is an extended type of the knuckle joint, the knuckle jar is used to combine with running tools, and operated to transmit effective jarring forces up and down. The knuckle jar not only has the rotation and change function of the universal section, but also has the function of the jarring, which is usually applied in some workings where the tool length is limited and does not require shock due to the short overall length and the smaller shock force. The wireline knuckle jar works as a backup means of de-carding when entering precision test instruments.

Specification of wireline knuckle jar

Other wireline tools

About Techore Oil Tools

With the professional Research and Development (R&D) department and skilled engineers whom were committed to the design of downhole tools for more than ten years, Techcore Oil Tools equipped with advance equipment is specialized in manufacture the oil downhole tools and its related parts in high quality.

* Techcore insist on superior quality, strong packing & timely delivery.
* Techcore do the best to supply thoughtful and prompt after-sales service to guarantee for the customers' benefits
* Techcore supply the cost effect products with 12 months guarantee
* Techcore insist on the traceability of each Drill stem testing tools and related DST parts

Techcore oil tools is certified by ISO, all the manufacture is strictly conformed with ISO system including Quality Control Management, Environmental Management and Occupational Health & Safety Management. For each downhole tools and each parts, we make the trace-ability from the raw material till the products. And any TPI inspection are available with us from SGS/BV/ TUV /DNV etc..

Welcome to contact us for information about the downhole tools

ZZ Top Oil Tools Co.,Ltd as head office registered in Xi’an City in 2010, and in 2016, ZZ TOP OIL TOOLS enlarged the downhole oil tools factory under the Brand - TECHCORE in Baoji, which engages in designing and manufacturing the downhole oil tools including DST tools, Coiled tubing tools etc.

As one group, ZZ TOP provides the clients highly efficient & expertise service as well as more comprehensive products to meet the customers' requirements during the work, and insists on "Traceability, Serialization" for each tools and related parts

Equipments List

Techcore specialized in design, manufacture and sales of the oil well downhole tools as below:

* Drill stem testing tools for cased hole,  open hole and slim hole:

Retrievable packer, circulating valve,safety joint, downhole tester valve,LPR- N Valve, multi-cycle circulating valve, hydraulic jar, shock absorber, RD safety circulating valve,CHAMP packer, IPO valve, tubing string test valve, drain valve,RD sampler, super safety valve etc.

* Coiled Tubing Tools: Double slip connector, roll on connector, roll on x thread connector, double flapper check valve, motor head, dual function circulating valve, hydraulic jar, fishing tools etc.

* Perforating tools: Various perforator & perforating gun system, Shaped Charge Body

 *Oil well completion tools include: Subsurface safety valve, wireline retrievable subsurface safety valve, single string production packer, dual strings production packer, ESP packer, mechanical set packer, permanent packer, compensation device, bridge plug, sliding sleeve, nipples etc. 

DST Tools Warehouse