Wide band acoustic receiver transducer

Patent · Tue Apr 01 04:00:00 EST 1986

OSTI ID:5720616

Mullett, A J

This patent describes an acoustic transducer for use in downhole acoustic well logging apparatus in a well logging sonde sized and adapted for passage in a well borehole. The transducer consists of a longitudinally segmented frusto conical base member formed of metal and having the segments thereof defining an integer number N mounting faces each of which is trapezoidally shaped and supporting a trapezoidally shaped piezoelectric crystal element capable of operating as a pressure sensitive receiving transducer in an acoustic well logging apparatus. Each such transducer element and the sum of all transducer elements has all mechanical resonant frequencies thereof in excess of a passband frequency required of such a transducer. The transducer elements are connected in parallel to form a single wideband piezoelectric acoustic receiving transducer.

• Assignee: Halliburton Co., Duncan, OK
• Patent Number(s): US 4580252
• OSTI ID: 5720616
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
440400 -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
CRYSTALS
DESIGN
ELECTRICITY
EQUIPMENT
FREQUENCY DEPENDENCE
GEOLOGIC DEPOSITS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
OPERATION
PETROLEUM DEPOSITS
PIEZOELECTRICITY
PRESSURE EFFECTS
PROBES
RESONANCE
RESOURCES
SONIC LOGGING
SONIC PROBES
TRANSDUCERS
WELL LOGGING
WELL LOGGING EQUIPMENT