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Title: Full-waveform inversion and least-squares reverse-time migration imaging of collimated ultrasonic-beam data for high-resolution wellbore integrity monitoring

Abstract

Los Alamos National Laboratory (LANL) has recently developed an ultrasonic side-lobe suppressed Bessel collimated beam transducer for low-frequency imaging through highly attenuating materials. In this paper, we study the effectiveness of using such a collimated ultrasonic-beam transducer for imaging concrete heterogeneities outside borehole casing for high-resolution borehole imaging and wellbore integrity monitoring. We obtain detailed concrete heterogeneities including a low-velocity zone using ultrasound data acquired with a 3D imaging prototype and our recently developed full-waveform inversion and least-squares reverse-time migration methods. Full-waveform inversion fits synthetic ultrasonic waveforms with recorded waveforms to build a high-resolution velocity model. Least-squares reverse-time migration produces a high-resolution structural image showing material discontinuities. Finally, our results demonstrate that LANL's 3D imaging system with a collimated ultrasonic-beam transducer together with full-waveform inversion and least-squares reverse-time migration imaging has great potential for high-resolution single-well borehole imaging and non-destructive evaluation.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1467339
Alternate Identifier(s):
OSTI ID: 1464584
Report Number(s):
LA-UR-18-23212
Journal ID: ISSN 0003-6951
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 113; Journal Issue: 7; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; Earth Sciences

Citation Formats

Chen, Yu, Gao, Kai, Davis, Eric S., Sinha, Dipen N., Pantea, Cristian, and Huang, Lianjie. Full-waveform inversion and least-squares reverse-time migration imaging of collimated ultrasonic-beam data for high-resolution wellbore integrity monitoring. United States: N. p., 2018. Web. doi:10.1063/1.5034122.
Chen, Yu, Gao, Kai, Davis, Eric S., Sinha, Dipen N., Pantea, Cristian, & Huang, Lianjie. Full-waveform inversion and least-squares reverse-time migration imaging of collimated ultrasonic-beam data for high-resolution wellbore integrity monitoring. United States. https://doi.org/10.1063/1.5034122
Chen, Yu, Gao, Kai, Davis, Eric S., Sinha, Dipen N., Pantea, Cristian, and Huang, Lianjie. 2018. "Full-waveform inversion and least-squares reverse-time migration imaging of collimated ultrasonic-beam data for high-resolution wellbore integrity monitoring". United States. https://doi.org/10.1063/1.5034122. https://www.osti.gov/servlets/purl/1467339.
@article{osti_1467339,
title = {Full-waveform inversion and least-squares reverse-time migration imaging of collimated ultrasonic-beam data for high-resolution wellbore integrity monitoring},
author = {Chen, Yu and Gao, Kai and Davis, Eric S. and Sinha, Dipen N. and Pantea, Cristian and Huang, Lianjie},
abstractNote = {Los Alamos National Laboratory (LANL) has recently developed an ultrasonic side-lobe suppressed Bessel collimated beam transducer for low-frequency imaging through highly attenuating materials. In this paper, we study the effectiveness of using such a collimated ultrasonic-beam transducer for imaging concrete heterogeneities outside borehole casing for high-resolution borehole imaging and wellbore integrity monitoring. We obtain detailed concrete heterogeneities including a low-velocity zone using ultrasound data acquired with a 3D imaging prototype and our recently developed full-waveform inversion and least-squares reverse-time migration methods. Full-waveform inversion fits synthetic ultrasonic waveforms with recorded waveforms to build a high-resolution velocity model. Least-squares reverse-time migration produces a high-resolution structural image showing material discontinuities. Finally, our results demonstrate that LANL's 3D imaging system with a collimated ultrasonic-beam transducer together with full-waveform inversion and least-squares reverse-time migration imaging has great potential for high-resolution single-well borehole imaging and non-destructive evaluation.},
doi = {10.1063/1.5034122},
url = {https://www.osti.gov/biblio/1467339}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 7,
volume = 113,
place = {United States},
year = {Tue Aug 14 00:00:00 EDT 2018},
month = {Tue Aug 14 00:00:00 EDT 2018}
}

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Cited by: 4 works
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Works referenced in this record:

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