Remotely located tuning circuits for multi-frequency, multi-purpose induction antennae in downhole tools
US9146332B2 · kind B2 · utility
0Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2011 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Jun 18, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An antenna system for a downhole tool has an antenna that is configured to operate at a plurality of frequencies. The tuning circuit is on the interior of the tool and shielded from borehole fluids. The tuning circuit is coupled to the antenna by a transformer circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.