AJ type safety joint is a specialized sub consisting of two parts.The specialized sub takes protective effect for drilling, repairing and test oil(gas)engineering, etc. It is used to remedy well bottom accident and on-the-way test in drilling and coring operation.
Technical specifications and parameters
type |
O.D.(mm) |
I.D.(mm) |
Thread Conn |
AJ-C86 |
86 |
38 |
NC26 |
AJ-C95 |
95 |
44 |
2 7/8REG |
AJ-C105 |
105 |
54 |
NC31,2 7/8NU,2 7/8EUE |
AJ-C121 |
121 |
68 |
NC38 |
AJ-C159 |
159 |
83 |
NC46 |
AJ-C165 |
165 |
95 |
NC50 |
AJ-C178 |
178 |
102 |
NC50,5 1/2FH |
AJ-C197 |
203 |
89 |
6 5/8REG |
AJ-C228 |
228 |
101 |
7 5/8REG |