Downhole jack assembly sensor
US7721826B2 · kind B2 · utility
2Cited by
125References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2007 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Apr 22, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/024
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one aspect of the invention, a drill string comprises a drill bit with a body intermediate a shank and a working face, and the working face comprises at least one cutting element. A jack assembly is disposed within the drill bit body and comprises a jack element disposed on a distal end of the assembly. The jack element substantially protrudes from the working face and is adapted to move with respect to the bit body. At least one position feedback sensor is disposed proximate the jack assembly and is adapted to detect a position and/or orientation of the jack element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.