Drilling Accelerator ZJQ

Product Detail

Drilling Accelerator ZJQ

Model “ZJQ” Drilling Accelerator can be stored energy by hydraulic spring as to increase the
jarring force for Hydraulic Jar. It should be applied with Hydraulic Drilling Jar Type QYⅡ jointly.
The drill collar and Hydraulic Jar (below the Drill Accelerator ) can function an accelerated effect
when jarring operates as for making the stuck point gain more jarring force that can increase force
for two times at the highest. Meanwhile, it can decrease the bounce-back shock after jarring as to protect the drill tools above Drill Accelerator.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Technical Parameters

Model	O.D mm/in	I.D mm/in	Connection API	Max.stroke   mm/in	Tension of full Stroke  kN/lbf f	Hole Seal Pressure Mpa/psi	Max.Working load kN/lbf	MaX.Torque kN·m/lbf·f	Overall Length Mm/in
ZJQ46	121 4-3/4	50 2	NC38	350 13-3/4	350 78700	30 4350	1100 247000	15 11000	7430 292.5
ZJQ62	159 6-1/4	57 2-1/4	NC50	350 13-3/4	700 157400	30 4350	1900 42000	25 18400	7780 306.25
ZJQ80	203 8	76.2 3	6 5/8REG	350 13-3/4	1000 224800	30 4350	3000 674400	45 3300	7752 305..19
ZJQ95	241 9-1/2	76 3	7 5/8REG	350 13-3/4	1200 270000	30 4350	4000 900000	60 44200	6752 265.81

Above list some models, other models also can be supplied as follows:ZJQ64(6-1/2),ZJQ76(7-3/4).