Expandable reamer
US7823663B2 · kind B2 · utility
30Cited by
7References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2006 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Aug 2, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/322
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole apparatus comprises a body, extendable members mounted on the body and being movable between retracted and extended configurations, and a remotely operable retaining arrangement for maintaining the extendable members in the retracted configuration. The extendable members may be cutters, such that the apparatus may be a cutting apparatus, such as a reamer. An operator may control the apparatus to retain the cutting members in the retracted configuration, or prevent the extension of the cutting members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.