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HydraQuaker™ DAH Drilling Jars

Type of product: Hydraulic drilling jar

Outside Diameter: 8"

Supplier reference: 58397

Original manufacturer: Oilfields Supply Center


Hydraulic drilling jar is capable of delivering a heavy impact in vertical and deviated holes during drilling, fishing, or workover operations. Designed to operate as an integral part of a drillstring, the tool can withstand normal drilling conditions of torque, pump pressure, temperatures, and long periods of use. A unique temperature compensation process enables the HydraQuaker jar to provide consistent impact, blow after blow, even in harsh environments. By adjusting the amount of surface push or pull, the operator can adjust the magnitude of the impacts in either direction; the frequency of impacts can also be controlled. “Cocking,” or resetting, the HydraQuaker jar is automatic—once the desired impact has been delivered, simply raising or lowering the string allows the proprietary metering mechanism to be reactivated.


  • Drilling formations that cause drillpipe or other components to stick
  • High-impact operations
  • High-temperature operations
  • Workover operations


  • The 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


Oilfields Supply Center was founded in Dubai in the early 1960’s by His Highness Shaikh Rashid bin Saeed Al Maktoum, the late Vice President and Prime Minister of the United Arab Emirates and Ruler of Dubai, Oilfields Supply Center 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. It is the first base of its kind in the region and rapidly established itself as a reliable partner for the oil and gas industry, providing a wide range of land-based facilities and operations support in Jebel Ali. Currently the company has three distinct bases in Dubai, they are located in Jebel Ali Free Zone, TechnoPark and Dubai Industrial City, which covers up to 11 million square feet of land. OSC bases also geographically exist in Malaysia, USA, and Saudi Arabia. The company offers industrial facilities to accommodate the company’s operations and to other prime oilfield business partners.

OSC wholly owns several former Schlumberger & Baker Hughes joint ventures, which include:

• Smith International Manufacturing Limited (SIML) – an advanced manufacturing center.

• Smith International Gulf Services (SIGS) – a regional leader in oilfield inspection & repair.

• Christensen Gulf Service LLC (CGS) – provides bespoke servicing of drilling tools.

• MI – Gulf Services LLC (MIGS) – drilling fluids, solids control & waste management services.

In addition to these former JVs, OSC has OEM distribution agreements to sell:

• Hydra-Jar AP® DAH Drilling Jars

• Rhino-Reamer® HEWD tools

• Borrox AP® & Model 60 Roller Reamers

• Dynomax™ Performance Drilling Motors

• HydraQuaker™ DAH Drilling Jars

• Diamant Drilling Services PDC Drill Bits

• ArmRdillo™ Odfjell WBCU tools

• XpresDrill™ Whipstocks

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