Mechanoacoustic transducer for use in transmitting high acoustic

Details Mechanoacoustic transducer for use in transmitting high acoustic Mechanoacoustic transducer for use in transmitting high acoustic

1979-08-20

1982-05-25

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367142, 367153, H04B 1100

Patent

active

043320171

ABSTRACT:
A mechanoacoustic transducer is described which comprises a plurality of circumferentially spaced contiguous vibratile plate members which are driven in phase by a rotating cylindrical cam. The cam is shaped to provide radial oscillatory displacements of the vibratile plates of sufficient amplitude to generate acoustic power density levels in liquids in the order of 100 kW or more per square foot of radiating surface of the cylindrical transducer. The transducer has a diameter of several inches, and it can be lowered into a flooded hole of such size as is usually drilled in an oil field. The mechanically-driven transducer provides an economical means for transmitting very intense low-frequency acoustic power into an oil-bearing shale or sandstone deposit for the purpose of dislodging the trapped oil and increasing the flow rate out of the sediment within which the oil is entrapped.

REFERENCES:
patent: 985524 (1911-02-01), Gray
patent: 2548905 (1951-04-01), O'Denweller et al.
patent: 2961636 (1960-11-01), Benecke
patent: 3319735 (1967-05-01), Hayes et al.
patent: 3720908 (1973-03-01), McCoy et al.
patent: 4107790 (1978-08-01), McCord
patent: 4207626 (1980-01-01), Wedding et al.

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