Method and apparatus for reaming well bore surfaces nearer the center of drift
US9739092B2 · kind B2 · utility
3Cited by
38References
40Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well bore reaming device and method are disclosed. The device includes a drill string, a bottom eccentric reamer coupled to the drill string, and a top eccentric reamer coupled to the drill string, wherein the bottom and top eccentric reamers have a prearranged spacing and orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.