Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1980-05-23
1982-03-09
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367158, 367912, 181104, 181106, 310317, 310335, G01V 140, G01V 1143
Patent
active
043193455
ABSTRACT:
An acoustic well-logging transmitting transducer employing a transmitter portion comprising stacked piezoceramic rings and a resonating metallic plate, the dimension of which determines the frequency, and a conical acoustic reflector for causing reflections to impinge omnidirectionally on the wall of the borehole at an angle to enhance shear wave component propagation. A receiving portion of similar construction can also be employed.
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patent: 3496533 (1970-02-01), Semmelick
patent: 3504759 (1970-04-01), Cubberly
patent: 3539980 (1970-11-01), Massa
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patent: 3974476 (1976-08-01), Cowles
patent: 4031418 (1977-06-01), Chizel et al.
patent: 4184562 (1980-01-01), Bakamjian
"The Design of Piezoelectric Sandwich Transducers", Apr. 31, 1972, Engineering Report of Vernitron Piezoelectric Division, TP 235.
Beard William J.
Halliburton Company
Moskowitz Nelson
Tregoning John H.
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