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CSJ Super Fishing Jar
Name:CSJ Super Fishing Jar
Name:Super Fishing Jar
Standard:API
Size:customed
Model:CSJ
Material:Alloy Steel
Color:Blue
Application:Well Fishing
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PROJECT DESCRIPTION

CSJ type super fishing jar is a fishing tool that provides larger jarring force when compared with others of the same specifications. This jar's structure is compact, performance is reliable and is easy to adjust and operate under different drilling conditions. The CSJ type super jar is a new type of top jarring tool used in oilfield, geological exploration and drilling operation.


Working principle


CSJ type super fishing jar achieves the top jarring action by means of hydraulic mechanism. When the drill tool attached directly above the super fishing jar is raised, there is sufficient time for the drill tool to store elastic energy due to the damping action between the tapered piston and the sealing body. When the taper piston slowly moves to the release bore, the drill tool suddenly contracts and produces an upward dynamic load by the instant unloading of the pressurized hydraulic oil. A reliable impact working surface is designed in the product structure to ensure that a large upward jarring force is generated to free the stuck drill tool while hard stopping the piston. CSJ type super jar uses the spline for torque transmission, so as to aid the rotation of the drill tool and mud circulation at the bottom of the well. An important feature of this jar is the ease of closing and resetting the tools for consecutive jarring.


Parameter/Model

CSJ31B

CSJ34B

CSJ36B

CSJ42C

CSJ44B

CSJ46B

CSJ62B

CSJ64B

CSJ70B

Pull-down length (mm)

3827

3830

3875

3950

4065

4065

4410

4410

4430

O.D. (mm)

80

89

95

108

114

121

160

165

178

I.D. (mm)

25.4

25.4

28

38

38

45

57

57

60

Stroke (mm)

298

298

298

305

305

305

320

320

320

Tensile load (KN)

300

400

500

700

780

980

1270

1370

1570

Max.tension downhole (KN)

150

180

200

250

340

400

700

750

800

Max.work torque (kN.m)

3

3.5

4

6

7

8

15

15

17

Sealing pressure

20

20

20

20

20

20

20

20

20

Max.working temperature(℃)

150

150

150

150

150

150

150

150

150

API Connection

23/8REG

NC26

NC26

NC31

NC31

NC38

NC50

NC50

NC50

Weight

80kg

145kg

155kg

195kg

260kg

300kg

550kg

600kg

700kg



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