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Safety Sub

Brief Introduction:

The safety sub is a kind of safety tool which is easy to break off and buckle.

AJ type safety sun is a kind of safety back thread tool connected to drill string and various downhole strings. When back thread is needed in case of stuck drilling in the well, it can be easily reversed from the body connecting thread. The internal and external diameters are the same as the connecting string, which does not affect the operation in the water hole of the string. The body of the safety sub is connected with a special wide pitch thread and has a smart tension structure.

H-type safety sub is a kind of safety device for fishing, milling and testing, which can bear all kinds of pulling and pressing loads and transmitting torques. Once it is needed in downhole operation, the safety sub can be easily withdrawn to take out the upper string. It is also easy to put on the safety sub and continue the operation.

No.

Name

Product code

Model

OD,mm

ID,mm

Conn.

1

Safety Sub

47020106

AJ-C89

89

44

NC26

2

Safety Sub

47020106

AJ-C95

95

44

NC26

3

Safety Sub

47020106

AJ-C105

105

50.8

NC31

4

Safety Sub

47020106

AJ-C121

121

62

NC38

5

Safety Sub

47020106

AJ-C127

127

62

NC38

6

Safety Sub

47020106

AJ-C159

159

82

NC50

7

Safety Sub

47020106

AJ-C165

165

82

NC50

8

Safety Sub

47020106

AJ-C178

178

82

NC50

9

Safety Sub

47020106

AJ-C203

203

82

6 5/8REG

10

Safety Sub

47020106

AJ-C229

229

89

7 5/8REG

11

Safety Sub

47020106

HJ105

105

38.1

NC31/NC31LH

12

Safety Sub

47020106

HJ121

121

50.8

NC38/NC38LH

13

Safety Sub

47020106

HJ159

159

57.2

NC50

14

Safety Sub

47020106

HJ165

165

70

NC50/NC50LH

15

Safety Sub

47020106

HJ168

168

70

NC50

16

Safety Sub

47020106

HJ168

168

71

NC50

17

Safety Sub

47020106

HJ178

178

70

NC50

18

Safety Sub

47020106

HJ203

203

80

6 5/8REG

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