Reaming apparatus and method with enhanced structural protection
US6695080B2 · kind B2 · utility
42Cited by
19References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2002 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Apr 10, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/567
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for reaming or enlarging a borehole with the ability to drill cement, cement float equipment, and debris out of a casing without substantial damage to the casing interior or the reaming apparatus. The reaming apparatus also provides enhanced protection from contact with the casing wall for selected structural features and elements thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.