| Customization: | Available |
|---|---|
| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
|
Still deciding? Get samples of US$ 3500/Piece
Order Sample
|
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
QJZ Mechanical Drilling Jar
QJZ mechanical drilling jar is fully mechanically operated and is an integrated unit that provides both up and down jarring operation. As part of the drill stem, it is used to free drill string components from sticking incidents and increase drilling efficiency by providing instantaneous jarring action without delay. The mechanical drilling jar relies on a trip and friction sleeve to activate jarring action. The jar is designed to trigger the jarring action when a sufficient amount of force (jar trip load) is applied to the jar in either up or down direction.
There is another set of internal spring sleeve located at the top of the slips. Down Jarring is achieved by lowering(pushing) the drill string until it reaches the jar trip load. The jar trip load will cause the internal spring unit to deform, allowing the trip sleeve to engage the friction sleeve. When this happens, the mandrel is suddenly freed to release the jarring force. To reset the jar, remove the downward load by pulling the drill string.
| Model | QJZ95 |
QJZ108 |
QJZ121 |
QJZ159 |
QJZ165 |
QJZ178 |
QJZ203 |
QJZ229 |
| Product Code | 1603000 |
1605000 |
1608000 |
1610000 |
1611000 |
1613000 |
1615000 |
1616000 |
| O.D. (mm) | 95 | 108 | 121 | 159 | 165 | 178 | 203 | 229 |
| I.D. (mm) | 28 | 38 | 51 | 57 | 57 | 57 | 71.4 | 76.2 |
| Total Length (mm) | 6000 | 6000 | 6000 | 6970 | 6970 | 6468 | 7310 | 7820 |
| Upper Stroke (mm) | 200 | 200 | 200 | 142 | 142 | 149 | 145 | 203 |
| Lower Stroke (mm) | 200 | 200 | 200 | 172 | 172 | 168 | 178 | 203 |
| Max.Up Jarring Force (kN) | 200 | 300 | 430 | 620 | 620 | 700 | 800 | 800 |
| Max.Down Jarring Force (kN) | 100 | 150 | 300 | 360 | 360 | 420 | 450 | 450 |
| Max.Tension Load (kN) | 600 | 800 | 1400 | 2200 | 2200 | 2200 | 2500 | 3000 |
| Max.Work Torque (kN.m) | 4 | 8 | 10 | 15 | 15 | 15 | 20 | 25 |
| Connection | NC26 | NC31 | NC38 | NC46 | NC50 | NC50 | 6 5/8 Reg | 7 5/8 Reg |
| Flexion Connection Length (mm) | 3398 |
3370 |
3347 |
3456 |
3456 |
3476 |
3048 |
2580 |
| Pumping Area (cm2) | 33 | 44 | 50 | 100 | 100 | 133 | 176 | 193 |
| Weight (kg) | 360 | 432 | 573 | 1150 | 1240 | 1350 | 1780 | 2375 |
Established in 1973 as a state-owned Mudanjiang Petroleum Machinery Factory. After 50 years a new private company(Tianhe) was registered and established in 2006. At present, Tianhe Group has 5 sales companies, including Chengdu, Beijing, Shanghai, Yanan, Mudanjiang branches. 2 large factories, in cluding Mudanjiang and Shanghai factory, controlling the important sales territories in China. The company is also actively expanding its business overseas. Currently, more than 50 countries and regions around the world, as well as over 200 well-known oil companies and service company customers, are using products under the Tianhe brand. Tianhe has become one of the most popular Asian oil brands.
1.The company has over 50 years of professional production experience and is capable of independently manufacturing a complete range of downhole tools, including: drill pipes, drill collars, stabilizers, jars, fishing tools, etc.
2. We have a strict quality control system, conducting strict quality checks from raw materials to finished products.
3.The company has obtained ISO9001 quality system certification and holds API certificates such as 5CT, 5DP, 7-1, Q1, etc.
4.The minimum order quantity is 1, and the delivery cycle can be strictly controlled.
5.Our export products have been recognized by customers in more than 50 countries and regions.
1.Q:Are you a factory or trading company?
We are a factory and the Top 3 of oildrilling equipment manufacturer.
2.Q:Where is your factory located?
We locate in Heilongjiang Province, China.
3. Q:What do your factory do regarding quality control?
From material to products, we inspect each process to keep good quality.
And SGS inspection can be accepted.
4.Q:How about MOQ ?
We have stock of common sizes at hand, so even few ton is accepted.
5.Q:How about payment ?
Both T/T and L/C can be accepted.
6.Q: How long does your warranty?
We can assured the quality within 90 days after receiving the cargoes.
){kind=link}