DJ10 Hydraulic Drilling Jar

Powerful. Durable. Consistent.

The DJ10’s proprietary internal latch prevents misfire incidents and eliminates the need for bulky safety clamps.


Overview

THE CHALLENGE

A stuck point is one of the most expensive problems to occur downhole and is a significant risk in horizontal or high-angle drilling. When your drill string becomes stuck downhole, you need a high-impact drilling jar to apply force to the stuck point in the drill string. This frees the drill string and allows you to continue drilling or pull out of the hole as quickly as possible.

The solution

Tough and durable, the Cougar DJ10 drilling jar is engineered for powerful performance. It can fire hydraulically in either direction and creates maximum impact.

For increased safety, the internal latch in the jar prevents misfire incidents and eliminates the need for bulky safety clamps.

The DJ10 is ideal in directional, horizontal and deep hole applications, and you can also tailor lock loads for optimized performance in specific drilling scenarios. It’s proven to get you out of the worst stuck point situations that can cause nonproductive time and raise costs.

The DJ10 uses the same dependable mechanical latch as the Cougar DJ6 but can jar down hydra-mechanically. It’s available in 4.75” to 9.50” OD, and you can tailor lock loads for optimized performance in specific drilling scenarios.

Benefits

DJ10 Hydraulic Drilling Jar Benefits

  • Proprietary internal latch prevents jar from misfiring
  • Ability to reset latch and return to drilling without pulling out of hole
  • No need for external jar clamp on surface
  • Adjustable configuration for optimized firing impact force
  • Standard operating temperatures up to 250°F (121°C)
  • Seals available for temperatures up to 450°F (232°C)
  • Maximum stroke length for increased impact force

Specs

ENGLISH UNITS

OD
(in.)
ID
(in.)
Length
(ft.)
Weight
(lb.)
Latch Setting
Range (lb.)
Maximum Pull
for Firing (lb.)
Maximum Pull
after Firing (lb.)
Pump Open
Area (in.²)
Maximum
Torque (ft.-lb.)
21/4187500–45,000*
84,000380,000
11.0
17,000
181,5000–110,000*156,000
685,000
17.0
40,000
8213/16202,2000–130,000*291,000
1,150,000
28.0
68,000

* Down lock loads will typically be 60-70% of the up value.

SI UNITS

OD
(mm)
ID
(mm)
Length
(m)
Weight
(kg)
Latch Setting
Range (daN)
Maximum Pull
for Firing (daN)
Maximum Pull
after Firing (daN)
Pump Open
Area (cm²)
Maximum
Torque (Nm)
121575.63400–20,000*
37,000169,000
71.0
23,000
16563 5.66800–50,000*71,000
304,000
108.0
54,000
203715.91,1000–60,000*129,000512,000182.092,000

* Down lock loads will typically be 60-70% of the up value


Published torque specs based on ‘high torque’ configuration and materials. Please contact your Cougar Drilling Solutions sales agent for accurate torque specs on all available models.

Resources

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