Drill string tool with bearing sleeve
US7182161B2 · kind B2 · utility
2Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 9, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Dec 31, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1057
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill string tool such as a drill string stabilizer (1) comprises a circumferentially continuous bearing sleeve (6) having an outside diameter which is equal to or greater than the outside diameter of a radially outermost part of the drill string tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.