Resonant acoustic transducer system for a well drilling string
US4302826A · kind A · utility
65Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1980 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Jan 21, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
For use in transmitting acoustic waves propagated along a well drilling string, a piezoelectric transducer is provided operating in the relatively low loss acoustic propagation range of the well drilling string. The efficiently coupled transmitting transducer incorporates a mass-spring-piezoelectric transmitter combination permitting resonant operation in the desired low frequency range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.