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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 Once it is needed in downhole operation, the safety sub can be easily withdrawn to take out the upper string.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 |