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全液壓雙向震擊器
鉆井工具
描述

QYSZ DOUBLE ACTING HYDRAULIC DRILLING JAR

DrillingJar-雙液壓震擊器-產(chǎn)品圖.jpg

Working principle

Upward jarring working principle

Lifting the stem to give the tool a up force, upper damping mechanism structure moving with it, after the oil get enough pressure, then reach a predetermined stroke, it may produce a upper force to release the drill stem.

Lower jarring working principle

Compared with upper jarring working principle, it is quite different to release the drill stem to produce the pressure, the ways to store the energy are the same as up jarring, finally we will get a downward jarring force to release the sticking tools in the down hole.

SPECIFICATIONS

Model

QYSJ46B

QYSJ64B

QYSJ66B

QYSJ70B

QYSJ80B

QYSJ94B

O.D. (mm)

121

165

171

178

203

241

I.D. (mm)

50.8

69

69

76

76

82.55

Thread Conn

NC38

NC50

NC50

NC50

65/8REG

7-5/8REG

Max.working torque

2.8

8

8

16

22

25

Max.tensile load   KN

1000

1500

1500

1800

2200

3000

Max.jarring force   KN

400

800

800

900

1100

1300

WorksJarring force

200

400

400

450

500

650

Connection

NC38

NC50

NC50

NC50

6 5/8REG

7 5/8REG

Weight(KG)

560

1270

1335

1758

2090

2910



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