Wear resistant electrodes for downhole imaging
US9989665B2 · kind B2 · utility
1Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2015 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Apr 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Devices and methods for well logging using a wear-resistant electrode are provided. A downhole device may include a drill collar and a first electrode mounted on the drill collar. Further, the first electrode may include a wear-resistant face. The first electrode may be movably coupled within the drill collar, and the first electrode may be configured to extend and retract into a wellbore to maintain contact with a wall of the wellbore. Furthermore, the first electrode may be configured to measure impedance of a geological formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.