Drill bit with continuously sharp edge cutting elements
US8020641B2 · kind B2 · utility
7Cited by
30References
84Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2008 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | May 11, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2204/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade having a curved outer edge and a forward face; a first row of cutter pockets recessed into the face along the outer edge of each blade; a second group of cutter pockets recessed into the face of each blade offset from the first row; and a plurality of cutting elements, each cutting element being brazed into a different one of the cutter pockets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.