Non-resonant logging tools with H-bridge switching
US9632203B2 · kind B2 · utility
7Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2011 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Oct 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3621
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems are provided for tools having non-resonant circuits for analyzing a formation and/or a sample. For example, nuclear magnetic resonance and resistivity tools can make use of a non-resonant excitation coil and/or a detection coil. These coils can achieve desired frequencies by the use of switches, thereby removing the requirement of tuning circuits that are typical in conventional tools.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.