Superabrasive cutting element having an asperital cutting face and drill bit so equipped
US7048081B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2003 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jun 27, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/5472
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A superabrasive cutting element for use with a drill bit for drilling subterranean formations and having a superabrasive table, or cutting face, in which a conglomerate of superabrasive particles is dispersed and bonded, or sintered, and in which at least one exposed cutting region of the superabrasive table develops a rough, asperital surface for improving the cutting efficiency of the drill bit, particularly in but not limited to relatively hard, relatively nonabrasive formations. The superabrasive table may include superabrasive particles of substantially differing size, or quality or a combination of differing size and quality. A rotary drill bit including cutting elements embodying the present invention is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.