Product List

Drilling Jar

Our 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 Parameter
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)


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

Oil Well Drilling Jar

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  • Drilling Jar