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ZSJ /ZXJ Type Full Mechanical Drilling Jar

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product description

The drilling jar which is connected with drill tool and worked with drill string is a downhole stuck freeing tool in drilling operation .It is a first selected tool for directional well,complicated well and deep well.The drilling jar is consisting of ZSJ type drilling up jar and ZXJ type drilling down jar,both they can be used mutually or operated separately .The up jarring section takes use of hydraulic mechanism,the jarring force can be adjusted according to up elevating load but can not exceed the max.load for tool load rated .The down jarring section takes use of mechanical friction mechanism, the jarring force is well preadjusted by adjusting device before put into downhole.No re-adjustment can be allowed after jar is put into downhole.

Up jarring test data

Type

ZSJ80

ZSJ76

ZSJ70

ZSJ62

ZSJ56

ZSJ46

Rated release force(KN)

400~600

400~600

350~550

300~450

200~350

150~250

Down jarring test data

Type

ZXJ80

ZXJ76

ZXJ70

ZXJ62

ZXJ56

ZXJ46

Max.release force(KN)

600

600

550

500

400

250

Thechnical specifications and parameters

Type
Parameters
Item

ZSJ 80
ZXJ 80

ZSJ 76
ZXJ 76

ZSJ 70
ZXJ 70

ZSJ 62
ZXJ 62

ZSJ 56
ZXJ 56

ZSJ 46
ZXJ 46

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

5515

5515

5424

5360

5730

5270

 

Down

5250

5250

5215

5208

5000

5125

 

Pull down
stroke(mm)

Up

368

368

344

344

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)

2500 

 2500 

 2500 

 2500 

2500  

2500  

Max.Working Torque(N.m)

20*103

18*103

15*103

15*103

15*103

13*103

Weight(KG)

Up

1085

980

680

530

480

330

 

Down

1027

920

645

520

457

310

 

Corresponding parameter set not found, please add it in property template of background
暂未实现,敬请期待
暂未实现,敬请期待
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