Scott C Ingram

US Patent:

20210325345, Oct 21, 2021

Filed:

Apr 21, 2020

Appl. No.:

16/854345

Inventors:

Sushant Dutta - Sugar Land TX, US
Otto Fanini - Houston TX, US
Joseph Olaiya - Houston TX, US
Wei Han - Sugar Land TX, US
Scott Ingram - The Woodlands TX, US

Assignee:

Baker Hughes Oilfield Operations LLC - Houston TX

International Classification:

G01N 29/12
G01N 29/24
G01N 29/11
G01V 1/46
G01V 1/50
E21B 49/00

Abstract:

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.