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API-7-1 QJZ Mechanical Drilling Jar For Fishing tools
  • API-7-1 QJZ Mechanical Drilling Jar For Fishing tools

API-7-1 QJZ Mechanical Drilling Jar For Fishing tools

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Meo Textile Clothing Co.LTD
Meo Textile Clothing Co.LTD
China - Hangzhou
Manufacturer
Trade Capacity
Export Percentage
Nearest Port
shanghai,ningbo
Accepted Delivery Terms
Employees
101-200 people
Accepted Payment Currency
USD,CNY
Average Lead Time
60 Day(s)
Certifications
Product Specifications
Model Number
API
Product Description
Overview
Quick Details
Place of Origin:
Shandong, China
Brand Name:
DYQX
Type:
Drill Pipe
Machine Type:
Drilling Tool
Material:
Carbon Steel
Processing Type:
Forging
Use:
Well Drilling
Usage:
well drill
Certification:
API
Supply Ability
Supply Ability:
1000 Set/Sets per Month
Packaging & Delivery

Specifications

1).API STANDARD 
2).SAFE AND RELIABLE 
3).DELIVERY ON TIME. 
4).COMPETITIVE PRICE 
ALL DEPENDS ON ENOUGH CREDIBILITY.

QJZ type mechanical drilling jar is a kind of fully-mechanical jarring tools.It can release the drilling tools sticking accidents by providing a up and down jarring force.Basically,it is part of the drill stem,whenever needed,the jarring force can increase the working efficienc.

 Up-jarring working principle

It show us the jarring state unlocked after be adjusted when it comes to the jarring position  the moving axis should snap in the inside threads of the slips.The outer thread of the slips and inside sleeve are under the friction state with.When lifting the drill stem,the upper sub,upper control sleeve,middle sleeve lower control sleeve,lower regularing sleeve,spring type inside sleeve,spring middle sleeve,and spring outer sleeve will move upward while friction sleeve keep still.The slips can be opened when its outer thread top touch the friction sleeve's teeth,at the moment the teeth of the axis will move out from the slips' inside teeth, Then stored power will release and give a up and down double- way force,the the tool will return to the state  the ready to jarring position.Repeat the following operation,we can release the sticking drilling tools.

Lower jarring working principle

There are a set of spring sleeve on the top of the slips.When the stem give a pressure on the

jar,it can pass through the upper sub,upper control sleeve,upper regularing sleeve to work on the spring type inside sleeve,spring middle sleeve,and spring outer sleeve.Slips will move upwards while the friction sleeve keep still,until reach the predetermination position,the teeth top of the slips will touch the teeth of the friction sleeve,slips will open to let the moving axis release from the slips teeth,the down-way jarring force against the upper jarring force.

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ToEric Zhang
Meo Textile Clothing Co.LTD
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