Method and appartus for directing drilling fluid to the cutting edge of a cutter
US5115873A · kind A · utility
34Cited by
18References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1991 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Jan 24, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/60
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention discloses an apparatus and method for directing drilling fluid to the cutting tip of a downhole drilling bit cutter by one or more flow channels formed in the upper section of the cutter's front surface, thereby maximizing the cleaning and cooling effect of the fluid flow on the actual cutting surface. Another embodiment of the present invention discloses an apparatus and method for helping to peel a rock chip from the face of a downhole drilling bit cutter while simultaneously cleaning and cooling the drill bit cutter cutting tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.