Cutting removal system for PDC drill bits
US8020639B2 · kind B2 · utility
6Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2008 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | May 25, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/602
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The blades of a PDC bit have a nozzle between them preferably oriented laterally across the plane of the cutters on the blade and more preferably in a trough disposed adjacent the row of cutters. The cutting is less likely to adhere to the bit surface because the trough abruptly spaces back the bit surface and the spray being oriented radially preferably into the trough gets between the bit surface and the cutting before it can adhere to the bit surface using the fluid energy to drive the cutting into the junk slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.