Drilling Jar

ZJQ series Drilling Jars are effective tools for releasing stuck drill pipe. Suitable for onshore or offshore drilling operations.

Details

The ZJQ series drilling jars were developed to provide the market with more reliable technology and more hoisting performance. The drilling jar is an effective tool for releasing stuck drill pipe, it is consisting of drilling up jar and drilling down jar, both up and down jars can be used mutually or operated separately. Included but not limited by the advantages mentioned, ZJQ series drilling jars might be your best choice.

 

General Features

•  Suitable for cold area and desert environment
•  Suitable for onshore or offshore rigs
•  Various size available for different operation requirement

 

Main aramaters

Outside Diameter: 4-3/4” – 6-5/8” (121 mm – 203 mm)
Maximum Working Torque: 9.6 klbf.ft – 14.75 klbf.ft (13 kN.m – 20 kN.m)

 

Parameters:

Drilling Jar

Model ZJQ80 ZJQ76 ZJQ70 ZJQ62 ZJQ56 ZJQ46
O.D. (mm) 203 197 178 160 146 121
I.D. (mm) 71.4 71.4 70 57 57 51
Pull Down Overall Length (mm) Up 5,515 5,515 5,424 5,360 5,730 5,270
Down 5,250 5,250 5,215 5,208 5,000 5,125
Pull Down Stroke (mm) Up 368 368 344 38044 332 305
Down 178 178 178 178 180 178
Thread Conn. API 6-5/8 REG 6-5/8 REG NC50 NC46 6-5/8 REG NC38
Max. Tensile Load (kN) 2,500 2,500 2,300 2,200 2,000 1,400
Max. Working Torque (N.m) 20 X 103 18 X 103 15 X 103 15 X 103 15 X 103 13 X 103
Weight (kg) Up 1,085 980 680 530 480 330
Down 1,027 920 645 520 457 310

 

Fishing Jar

Model Pull-down Length (mm) O.D. (mm) I.D. (mm) Stroke (mm) Tensile Load (kN) Max. Tension Downhole (kN) Sealing Pressure (MPa) Highest Working Temp. (℃) API Connection
ZJQ42F 3,980 108 32 305 700 300 20 150 NC31
ZJQ44F 3,980 114 51 305 780 340 20 150 NC31
ZJQ46F 3,980 121 51 305 980 400 20 150 NC38
ZJQ62F 4,098 160 57 320 1,270 700 20 150 NC50
ZJQ64F 4,177 165 57 320 1,370 750 20 150 NC50
ZJQ65F 4,177 168 57 320 1,470 800 20 150 NC50
ZJQ70F 4,250 178 60 320 1,570 800 20 150 NC50
ZJQ80F 4,318 203 70 330 1,870 800 20 150 6-5/8 REG

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