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 efficiency.
Up Jarring Working Princip
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 tool will return to the state the ready to jarring position. Repeat the following operation, we can release the sticking drillingtools.
Lower Jarring Working Princip
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 jarringforce.
Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd is a modernized medium-scale enterprise specialized in production of oil and gas tools.
As an API-Certified established manufacturer and supplier of a comprehensive range of downhole equipment with related accessories, we are committed to providing the highest Quality products for the Petroleum and natural gas industry since 1973.
Tianhe Oil Group strongly believes and promotes Total Quality Management, implement the ISO quality management system and HSE management system and API Standard, which has been deeply implanted into every person's thought and carried out into every aspect of work.
Our manufacturing facilities are well equipped with four automated induction heat treatment lines and dozens of other types of heat treatment ovens and well furnaces to ensure full coverage of heat treatment requirements by different products to achieve the required mechanical properties.
In order to ensure the quality consistency and interchangeability of high precision components, Tianhe has introduced WFL 5-axis Linkage Turning & Milling Machining Center from Austria, Mazak's turn milling machining center from Japan and the Haas vertical machining center from USA. These processes are facilitated with precise quality inspection equipment such as the Brunker OES Metal Analyzers from Germany, Ultrasonic and Magnetic Powder Flaw Detector and high precision Hexagon Three Coordinate Measuring Machine and Farco Portable Three Coordinate Measuring Machine.
So far, Tianhe Oil Group has established strong business relationships with over 200 international oil & gas companies in supporting the top 50 oil producing countries.
We take pride in delivering superior performances and reliability. Our objective is to exceed your expectations, improve your economics and be an integral part of your strategies.
Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd is a modernized medium-scale enterprise specialized in production of oil and gas tools.
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