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US 4,380,930 AGranted
System for transmitting ultrasonic energy through core samples
AssigneeMobil Oil Corporation
InventorsJulius Podhrasky, Eve S. Sprunt
Life of this patent
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Abstract
A system for measuring ultrasonic (50 Khz-10 Mhz) velocity and attenuation in core samples employs transmitting and receiving transducers for generating and receiving ultrasonic energy in a core sample. The transducer and core sample are contained in a high pressure cell. The transducers are isolated from the high pressure of the cell by suitable housings, allowing the transducers to operate at ambient pressure.
Claims8
A system for transmitting ultrasonic energy through a material sample comprising:
- (a) ultrasonic energy transducing means in contact with said material sample for transmitting ultrasonic energy into said sample and for receiving the energy after it has traveled through said sample,
- (b) a pressure cell for housing said sample under a confining pressure simulating subterranean pressure conditions, and
- (c) means for isolating said ultrasonic energy transducing means from the confining pressure condition on said cell such that said ultrasonic energy transducing means operates at ambient pressure conditions.
Dependencies are inferred from the claim text.