Device and method for attenuating acoustic signals
OwnerJohn J. Valenza, II, David Linton Johnsoninventors
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Abstract
Illustrative embodiments of the present disclosure are directed to methods and devices for attenuating acoustic signals traveling within bodies. A device includes a body and at least one acoustic attenuator disposed along the body. The attenuator includes a cavity and granular particles disposed within the cavity. A liquid is also disposed within the cavity. A restrictor applies a stress to the granular particles within the cavity.
Claims20
A device comprising:
- a body;
- at least one acoustic attenuator disposed along the body, the attenuator comprising:
- a cavity;
- a plurality of granular particles disposed within the cavity;
- a liquid disposed within the cavity;
- and
- a restrictor configured to apply a stress to the granular particles within the cavity.
A logging tool for performing acoustic investigations of subsurface geological formations traversed by a borehole, the logging tool comprising:
- a tool body extending longitudinally;
- at least one acoustic transmitter disposed at a first longitudinal location on the body;
- at least one acoustic receiver disposed at a second longitudinal location on the body;
- at least one acoustic attenuator located between the at least one acoustic transmitter and the at least one acoustic receiver, the attenuator comprising:
- a cavity within the tool body;
- a plurality of granular particles disposed within the cavity;
- a liquid disposed within the cavity and configured to coat the granular particles within the cavity;
- and
- a restrictor configured to apply a stress to the granular particles within the cavity.
A method for attenuating an acoustic signal passing through a body, the method comprising:
- disposing a plurality of granular particles within a cavity disposed along the body;
- and
- applying a stress to the granular particles within the cavity.
Dependencies are inferred from the claim text.