Drill bit with a sensor for estimating rate of penetration and apparatus for using same
US7946357B2 · kind B2 · utility
27Cited by
28References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2008 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Aug 5, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/013
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one embodiment, an apparatus includes a drill bit, a tip on a bit body configured to contact a formation when the drill bit is utilized to cut into the formation, and a spring coupled to the tip. The apparatus also includes a sensor coupled to the spring and configured to provide signals corresponding to the displacement of the tip when the tip is in contact with the formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.