Resonant acoustic transducer and driver system for a well drilling string communication system

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863949

Chanson, Gary J ^[1]; Nicolson, Alexander M ^[2]

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1. Weston, MA
2. Concord, MA

The acoustic data communication system includes an acoustic transmitter and receiver wherein low frequency acoustic waves, propagating in relatively loss free manner in well drilling string piping, are efficiently coupled to the drill string and propagate at levels competitive with the levels of noise generated by drilling machinery also present in the drill string. The transmitting transducer incorporates a mass-spring piezoelectric transmitter and amplifier combination that permits self-oscillating resonant operation in the desired low frequency range.

• Research Organization: Sperry Research Center, Sudbury, MA (USA)
• DOE Contract Number: EY-76-C-02-2817
• Assignee: Sperry Corporation (New York, NY)
• Patent Number(s): US 4282588
• OSTI ID: 863949
• Country of Publication: United States
• Language: English

Related Subjects

resonant
acoustic
transducer
driver
drilling
string
communication
data
transmitter
receiver
frequency
waves
propagating
relatively
loss
free
manner
piping
efficiently
coupled
drill
propagate
levels
competitive
noise
generated
machinery
transmitting
incorporates
mass-spring
piezoelectric
amplifier
combination
permits
self-oscillating
operation
desired
range
acoustic transducer
acoustic wave
frequency range
drill string
acoustic waves
drilling string
resonant operation
transducer incorporates
transmitting transducer
acoustic data
resonant acoustic
data communication
efficiently coupled
frequency acoustic
free manner
acoustic transmitter
drilling machine
/367/310/