Acoustic sensor
US5798488A · kind A · utility
46Cited by
4References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Nov 11, 2016 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/017
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acoustic sensor for use as part of a drill string in a borehole has an acoustic transducer which vibrates the drill bit in contact with the rock at the end of the borehole to generate acoustic signals in the rock. These acoustic signals propogate through the rocks ahead of the drill bit and are reflected and scattered to return to an acoustic sensor contained within the drill string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.