Interpolation method and system to obtain azimuthal borehole sonic measurements
US12019199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Oct 7, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/6222
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Multicomponent data are acquired using a downhole acoustic tool having transmitters and receiver stations distributed azimuthally in a plane perpendicular to the axis of the tool. The receiver stations are located at several receiving stations along the axis of the tool. At each acquisition depth, waveforms are processed through a multi-dimensional fast Fourier transform, extrapolation and inverse multi-dimensional fast Fourier transform. At each receiver station, waveforms are combined to produce the standard monopole waveforms and the inline and crossline dipole waveforms along fixed azimuths. These oriented waveforms produce a finer azimuthal sampling of the surrounding formation, and can then be used for imaging geological features within the surrounding formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.