1.API 9 1/2'' IADC 136 rubber sealed journal bearing insert tooth tricone bit for oilfield drilling
2.Meet with API Spec7-1 ISO 9001:2008
3.Suitable for soft formation
3.Suitable for soft formation
4.IADC code suitable for different formations
5.High temperature and wear resistance
6.Good quality and after-sale service
7.Long service life and resonable price
8.Delivery on time
About us
Hejian Wanxiang Drilling Equipments Co., Ltd.
We produce the drilling bits strictly according to our customers' requirements with advanced equipments to make the quality perfect.
Specification
| No | Sizes Available | |
| Inch (in) | Metric (mm) | |
| 1 | 7 7/8 | 200.0 |
| 2 | 8 1/2 | 215.9 |
| 3 | 9 1/2 | 241.3 |
| 4 | 12 1/4 | 311.1 |
| 5 | 17 1/2 | 444.5 |
| No | IADC Code | Recommendation | |
| WOB(KN/mm) | Rotary Speed(rpm) | ||
| 1 | 117 | 0.35~0.8 | 240~80 |
| 2 | 127 | 0.35~0.9 | 240~70 |
| 3 | 437 447 | 0.35~0.9 | 240~70 |
| 4 | 517 527 | 0.35~1.0 | 220~60 |
| 5 | 537 547 | 0.45~1.0 | 220~50 |
| 6 | 617 627 | 0.45~1.1 | 200~50 |
| 7 | 637 | 0.5~1.1 | 180~40 |
Note:
1.Large inventory on hand
2.Good quality and after-sale service
3.Can be customized
