Drilling Jars for Oil and Gas Industry
Drilling Jars are critical well intervention tools used in the oil and gas industry to deliver a sudden impact force to free stuck drilling equipment in the wellbore. Designed for harsh downhole environments, these tools play a vital role in reducing non-productive time (NPT) and improving drilling efficiency.
What are Drilling Jars?
A drilling jar is a mechanical or hydraulic downhole tool that stores energy while the drilling string is under tension or compression and then releases it suddenly to create a powerful impact force. This impact helps to loosen stuck pipe, casing, or other downhole equipment.
Key Features of Drilling Jars
- High impact force generation for effective pipe release
- Robust design suitable for extreme temperature and pressure
- Reliable performance in deep drilling operations
- Available in hydraulic, mechanical, and hydraulic-mechanical types
- Easy integration with drilling assemblies
Applications in Oil & Gas Industry
Drilling jars are widely used in:
- Directional drilling operations
- Fishing operations
- Well intervention and workover jobs
- Offshore and onshore drilling projects
- Deep well and high-pressure environments
Benefits of Using Drilling Jars
Using high-quality drilling jars significantly improves operational efficiency by reducing downtime caused by stuck pipe situations. They enhance safety, minimize operational risks, and ensure smooth drilling performance even in challenging formations.
Why Choose Advanced Drilling Jars?
Modern drilling jars are engineered with advanced metallurgy and precision technology to withstand heavy loads and repeated impact cycles. Their reliability ensures better control during critical downhole operations, making them an essential component in drilling tool assemblies.
Jiach Energy Solutions have partnered with OilFields Supply Centre Limited (OSC) Dubai to supply HydraQuakerTM Double Acting Hydraulic Jars-Ex SLB/Smith IP which are Approved with ONGC / Oil India.

- The HydraQuaker ™ is a Double Acting Hydraulic Jar capable of high impact with 4330V steel components – ex SLB/Smith IP
- Standard seal kits (300 F) and High Temperature Seal kits (500 F)
- Available for Sales and Rent
Applications
- Drilling formations that cause drillpipe or other components to stick
- High-impact operations
- High-temperature operations
- Workover operations
Advantages
- Proprietary metering mechanism enables drillstring activation
- Long free stroke delivers maximum impact
- Flex subs enable conveyance through high dogleg severity intervals
- Jar can be run in tension or compression
- Large piston area prevents automatic cocking or firing with pumps operating normally
- Proprietary detent system ensures consistent impact in 300-degF and 450-degF conditions with optional high-temperature seals
OSC
Oilfields Supply Center Limited is a Government of Dubai company under the Chairmanship of His Highness Sheikh Hamdan Bin Rashid Al Maktoum, Deputy Ruler of Dubai and Minister of Finance and Industry for the U.A.E.
| HydraQuaker Specifications | |||||||
| Tool OD, in | 4.75 | 6.25 | 6.5 | 7 | 8 | 9.5 | 10 |
| [mm] | [121] | [159] | [165] | [178] | [203] | [241] | [254] |
| Tool ID, in | 2.25 | 2.75 | 2.75 | 2.75 | 3 | 3 | 3 |
| [mm] | [57] | [70] | [70] | [70] | [76] | [76] | [76] |
| Tool joint connection | 3½ IF | 4½ IF | 4½ IF | XT-57 | 6 5⁄8 Reg | 7 5⁄8 Reg | 7 5⁄8 H90 |
| Maximum detent working | 90,000 | 185,000 | 185,000 | 185,000 | 300,000 | 500,000 | 500,000 |
| load, lbf [N] | [400,340] | [822,921] | [822,921] | [822,921] | [1,334,466] | [2,224,110] | [2,224,110] |
| Tensile yield strength, lbf | 452,737 | 761,980 | 916,152 | 916,152 | 1,302,363 | 1,682,000 | 1,682,000 |
| [N] | [2,013,875] | [3,389,456] | [4,075,247] | [4,075,247] | [5,793,199] | [7,481,908] | [7,481,908] |
| Torsional yield strength, lbf.ft | 19,116 | 41,315 | 56,395 | 57,000 | 102,056 | 151,791 | 155,517 |
| [N.m] | [25,918] | [56,015] | [76,461] | [76,461] | [138,369] | [205,800] | [210,800] |
| Tool weight, lbm | 1,800 | 2,400 | 2,600 | 2,800 | 3,800 | 5,230 | 5,810 |
| [kg] | [483] | [894] | [969] | [1,270] | [1,550] | [2,372] | [2,372] |
| Tool length, | 31 | 33 | 33 | 33 | 34 | 33 | 33 |
| [m] | [9.4] | [10.1] | [10.1] | [10.1] | [10.4] | [10.1] | [10.1] |
