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  The super fishing jar type CSJ is a up jarring tool that utilizes a core piston to realize the jarring action. The down hole jarring blow is adjustable without any rig floor adjustments necessary prior to the run. Impact of each blow can be varied by simply changing the pull load.

Specification Series and Performance Parameters


Type

O.D.
mm

I.D.
mm

Connection
API

Max. Stroke
mm

Sealing pressure
MPa

Max. Working torque
kNm

Max. Working Load
kN

Max. Tensile
load
kN

Overall Length (Locked) mm

CSJ95

95

28

NC26

305

20

4

200

500

3 882

CSJ108

108

32

NC31

305

20

6

250

700

3 882

CSJ114

114

38

NC31

305

20

9.8

300

800

3 882

CSJ46

121

50

NC38

305

20

9.8

350

900

3 882

CSJ140

140

50

NC38

305

20

11.9

400

1000

3 900

CSJ62

159

57

NC50

320

20

12.7

700

1500

3 977

CSJ168

168

57

NC50

320

20

14.7

700

1600

3 977

CSJ70

178

60

NC50

320

20

14.7

800

1800

4 045

CSJ76

197

78

6 5/8REG

330

20

19.6

1000

2100

4 328

CSJ80

203

78

6 5/8REG

330

20

19.6

1200

2200

4 328

CSJ90

229

76

7 5/8REG

330

20

20

1200

2500

4 328

  The mechanical drilling jar type "JZ" takes the appliance of mechanical structure. And high pressure will not produce in inner chamber as to create a good sealing property and greatly extend the service life. During the drilling operation, the jarring mechanism has no action due to its unique structure which can not be controlled by the common drilling condition and torque, and it's unique structure can accurately transmit the torque. Moreover, the up or down jarring blow is  adjustable prior to tripping in and will not change during the downhole operation so as to keep a constant jarring load.

Specification Series and Performance Parameters


Type

O.D. mm

I.D. mm

Connection API

Max. Tensile Load
MN

Max. Working Torque kN.M

Pump Open Area cO

Up Jarring Stroke mm

Down
Jarring Stroke
mm

Overall
Length (Locked)
mm

JZ95

95

28

27/8REG

0.5

5

32

200

200

5 800

JZ108

108

36

NC31

0.7

10

38

203

203

6 404

JZ121

121

51.4

NC38

1.0

12

60

198

205

6 343

JZ159

159

57

NC46

1.5

14

100

149

166

6 517

JZ165

165

57

NC50

1.6

14

100

149

166

6 517

JZ178

178

57

NC50

1.8

15

100

147.5

167.5

6 570

JZ203

203

71.4

65/8REG

2.2

18

176

144.5

176.5

7 234

JZ229

229

76

75/8REG

2.5

22

181

203

203

7 753

 
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