Single point contact acoustic transmitter

Details Single point contact acoustic transmitter Single point contact acoustic transmitter

1998-05-29

2000-10-24

Horabik, Michael

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

367 82, 3408564, H04H 900

Patent

active

061377473

ABSTRACT:
The invention is an acoustic transmitter that imparts vibratory stresses onto a signal propagation medium such as oil well tubing when actuated by an electric driver. In one embodiment, the acoustic transmitter utilizes a mechanical driver that includes piezoelectric elements to generate the vibratory stresses. The acoustic transmitter is mechanically attached at only one point to the signal propagation medium. This single point attachment eliminates loading on the acoustic transmitter from compressive and tensile forces carried by the signal propagation medium. A mass backing the mechanical driver may be used to extend the frequency range over which the acoustic transmitter is operable. In addition, the resonance response of the acoustic transmitter may be minimized by the use of a viscous dampener. The viscous dampener is configured to "couple" with the mechanical driver when the acoustic transmitter is operating and to "uncouple" with the mechanical driver at other times.

REFERENCES:
patent: 4293936 (1981-10-01), Cox et al.
patent: 4298970 (1981-11-01), Shawhan et al.
patent: 4992997 (1991-02-01), Bseisu
patent: 5128901 (1992-07-01), Drumheller
patent: 5130951 (1992-07-01), Kingman
patent: 5166908 (1992-11-01), Montgomery
patent: 5214252 (1993-05-01), Mari et al.
patent: 5222049 (1993-06-01), Drumheller
patent: 5229554 (1993-07-01), Cole
patent: 5245734 (1993-09-01), Issartel
patent: 5250868 (1993-10-01), Shirasu
patent: 5289074 (1994-02-01), Mori
patent: 5289354 (1994-02-01), Clayer et al.
patent: 5289433 (1994-02-01), Cowles et al.
patent: 5295288 (1994-03-01), Dam et al.
patent: 5301170 (1994-04-01), James
patent: 5510582 (1996-04-01), Birchak et al.
patent: 5644186 (1997-07-01), Birchak et al.
patent: 5675325 (1997-10-01), Taniguchi et al.
patent: 5703836 (1997-12-01), Drumheller

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