Joint time-frequency processing for borehole acoustic arrays
US9631483B2 · kind B2 · utility
2Cited by
7References
25Claims
0Family size
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Key dates
| Filing date | Jul 12, 2012 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Sep 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/48
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various embodiments include apparatus and methods to process acoustic signals according to joint time-frequency processing. The joint time-frequency processing can combine features of both time-based processing and frequency-based processing. This processing may be based on delay calculation from amplitude phases generated from the acoustic signals. The joint time-frequency processing may be applied to a variety of applications to evaluate properties associated with a borehole or surrounding formations. Additional apparatus, systems, and methods are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.