AJ Safety Joint

AJ Safety Joint

AJ safety joint is one kind of safety back off tool which is connecting with drilling string
and all kinds of working string in downhole operation. When sticking in well and need back off, it is easy to back off from connection thread of its body. Pull out drill pipe and tubing above its pin joint. It is easy and reliable to back off or make up again in downhole. During in drilling operation, safety joint works like one drill pipe sub, its ID coincides with connected pipe string, so there is no problem for operation in the bore of pipe string. Safety joint body adopts for special wide saw form connection thread, ingenious tension structure design, when connecting, just need certain torque to connect the whole. Unless given more than 40% opposite, it won't release automatically in downhole working

AJ type specification

Type

OD(mm)

Connection

ID(mm)

Length(mm)

AJ89

89

NC26

44

660

AJ121

121

NC38

62

710

AJ168

168

NC50

82

750

AJ203

203

6-5/8REG

82

840


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