Description
API 7-1 Standard Drilling Crossover Sub/pup joint
Saver Sub
Drill Bit Sub Drilling Tool Well Drilling Pup Joint for Drill Pipe
- It is divided into drill string crossover and tubing Crossover.
- Drill string Cross-over is divided into type A, type B and type C.
Specification
| Denotation | Top junction block | Lower junction block | Type |
| Kelly joint | Kelly | Drill pipe joint | A or B |
| Kelly joint | Drill pipe joint | Drill pipe joint | A or B |
| Drill pipe joint | Kelly | Drill collar | A or B |
| Crossover joint | Drill collar | Drill collar | A or B |
| Bit joint | Drill collar | Bit | A or B |
| Swivel joint | Swivel lower joint | Kelly | Type C |
| Fish joint | Kelly | Drill pipe joint | Type C |
| Drill pipe joint | Fishing tool | Type C |
Mechanical properties
| O.D. Range | Min. Yield Strength |
Min. Tensile strength |
Elongation Min. | Min. Brinell Hardness |
| 3.1/2 THRU 6.7/8 |
760Mpa | 965Mpa | 13% | 285 |
| 7 THRU 10 | 690Mpa | 930Mpa | 13% | 277 |
Drill pipe joint is an important connecting component of petroleum drilling pipe drill, which is widely used in oil drillingindustry.
The market demand is big, has broad prospects for development, Goldenman company with its unique perspective, to create a modern international joint industry as the goal, take on the hard road of entrepreneurship. In the increasingly competitive market economy situation, the courage to struggle and thrive.
• Special medium frequency heat treatment
• Meet the requirements of API 5DP
Specification of Drill pipe joint API 5DP pup joint for drill pipe Connection of drill pipe.
Our Services
1.High quality products-Drill pipe tool joint welding manufacturer drill pipe joint
2.Fast delivery.
3.OEM services.
4.Perfect after-sale services
