Method and apparatus for determining a tubular thickness using a pulse echo waveform signal
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United States of America Patent
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Jul 26, 2022
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N/A
app pub date -
Jun 30, 2020
filing date -
Jul 2, 2019
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Abstract
A method for characterizing a tubular includes obtaining acoustic waveform data in a time domain using an acoustic transducer configured to emit an acoustic signal and receive a return acoustic signal and transforming the acoustic waveform data into a frequency domain to provide frequency domain acoustic waveform data. The method also includes determining a complex group delay function Gk derived from the frequency domain acoustic waveform data to provide a phase delay function as a function of frequency, wherein the complex group delay function Gk represents a first derivative of phase in the frequency domain with respect to frequency. The method further includes determining an imaginary component function of the complex group delay function Gk to provide a phase delay function as a function of frequency and characterizing the tubular using the phase delay function.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
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Patent Owner(s)
- BAKER HUGHES OILFIELD OPERATIONS LLC
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Priest, John F | Houston, US | 17 | 302 |
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