Controlled blade flex for fixed cutter drill bits
US10119338B2 · kind B2 · utility
3Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2013 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | May 22, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill bit includes a drill bit body and a flexible blade positioned on the drill bit body. The drill bit further may include a cutting element coupled to and extending a distance beyond a face of the flexible blade. The cutting element may have a back rake angle and a side rake angle. At least one of the distance, back rake angle, and side rake angle may depend on a flexed position of the flexible blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.