Steerable drilling system
US8011452B2 · kind B2 · utility
20Cited by
12References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2004 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Jan 13, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A steerable system comprises a fluid powered motor 10 having a rotor 16 and a stator 18, and a bias arrangement having a plurality of bias pads 34 connected to the stator 18 so as to be rotatable therewith, the bias pads 34 being moveable to allow the application of a side load to the steerable system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.