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 |
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