Steering system
US8302705B2 · kind B2 · utility
14Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2007 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Feb 28, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1014
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole steering system comprises a first full gauge stabilizer 34, a bias unit 28, a universal joint 26, and a second full gauge stabiliser 22, the bias unit 28 and universal joint 26 being located between the first and second full gauge stabilizers 34, 22. The system further comprises a drill bit 10 and a fluid powered downhole motor 14, the motor being located, at least partially, between the drill bit 10 and the second stabilizer 22.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.