About us
Hejian Wanxiang Drilling Equipment Co., Ltd is a professional manufacturer & distributor of drilling tools and equipment in China.
We have many years' experience
in research and production of petroleum equipment. With flexible company
structures and advanced technologies, we have dedicated ourselves to supplying
drilling industry with the best products available.
We take pride in offering prompt, courteous
services to all facets of oilfield, water well, mining and construction
industries.
Specifications
1.Good wear-resistance.
2.Tungsten carbide hardfacting on tooht surgace.
3.Better steel and longer stable drilling hours.
4.Optimized profile and higher rate of penetration .
5.High stability .
Our advantage
1.Good
quality,reasonable price.
2.ISO9001:2000, ,API
certified.
3.Timely delivery.
operating parameters:
| 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 |
