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Incident handling tools
4-3/4" ~ 10"
Design Specifications
Operating Parameters






Design Specifications

AJ type safety joint i s a special sub which can take protective effect for drilling, repairing and testing oil and gas engineering etc. It is used to remedy well bottom accident and on-the-way test in drilling and coring operation.


型号 Type


外径 (mm)

O.D.


内径 (mm) I.D


接头螺纹 Connect

AJ 121

12l

54

NC38

AJ159

159

57

NC50

AJl65

165

57

NC50

AJl78

178

80

5 1/2 FH

AJ203

203

7l

6 5/8 REG


Download PDF :
4-3/4" ~ 10"


Note: When ordering or requesting quotation, if size other than above specifications, please specify clearly.



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