Reamer with balanced cutting structure for use in a wellbore
US8579050B2 · kind B2 · utility
2Cited by
19References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | May 30, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A reamer bit for use in earth boring operations comprising a body, four cutter mounts, rolling cutters on each mount, and cutting elements disposed on each cutter arranged so adjacent cutting swaths formed by the bit are created by cutting elements on cones of oppositely disposed cutter mounts. The swaths are generally curvilinear, wherein the outermost swaths are formed by cutting element rows on the outer portion of the cutters. The reamer bit can further comprise a pilot bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.