Acoustic logging while drilling tool having raised transducers
US8559272B2 · kind B2 · utility
30Cited by
25References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 2010 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Mar 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acoustic logging while drilling tool includes an acoustic transmitter and a linear array of acoustic receivers. At least one of the transmitter and the linear array of receivers is deployed on a blade having an outer diameter greater than that of the tool body. In preferred embodiments the transmitter and linear array are each deployed on a distinct blade. Deployment of the transmitter and/or the receivers on a blade reduces the standoff distance to the borehole wall which tends to improve the signal strength of received guided waves without an increase in transmitter power or receiver sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.