Estimation of formation and/or downhole component properties using electromagnetic acoustic sensing

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United States of America Patent

PATENT NO 11460446
APP PUB NO 20210325345A1
SERIAL NO

16854345

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Abstract

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A method is provided of inspecting a nested multi-layer structure including a first and second electrically conductive layer and a third layer disposed behind the second conductive layer. The method includes deploying a sensor device including an electromagnetic acoustic transducer to a borehole location proximate to the structure, generating a drive signal including a plurality of frequencies, applying an electrical current signal to the sensor device based on the drive signal and inducing currents in the first conductive layer that induce currents generating acoustic signals having the plurality of frequencies, detecting a first set of resonant frequencies based on received electromagnetic signals, detecting a second set of resonant frequencies based on received acoustic signals, estimating a property of the first and/or the second conductive layer based on the first set of resonant frequencies, and estimating a property of the third layer based on the second set of resonant frequencies.

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Patent Owner(s)

Patent OwnerAddress
BAKER HUGHES OILFIELD OPERATIONS LLC17021 ALDINE WESTFIELD HOUSTON TX 77073

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dutta, Sushant Sugar Land, US 13 11
Fanini, Otto Houston, US 40 245
Han, Wei Sugar Land, US 308 2715
Ingram, Scott The Woodlands, US 6 13
Maity, Sandip Manama, BH 49 300
Olaiya, Joseph Houston, US 10 2

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