Attenuation compensation in least-squares reverse time migration using the visco-acoustic wave equation

Gaurav Dutta; Kai Lu; Xin Wang; Gerard T. Schuster

doi:10.1190/segam2013-1131.1

Attenuation compensation in least-squares reverse time migration using the visco-acoustic wave equation

Gaurav Dutta, Kai Lu, Xin Wang, Gerard T. Schuster

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Scopus citations

Abstract

Attenuation leads to distortion of amplitude and phase of seismic waves propagating inside the earth. Conventional acoustic and least-squares reverse time migration do not account for this distortion which leads to defocusing of migration images in highly attenuative geological environments. To account for this distortion, we propose to use the visco-acoustic wave equation for least-squares reverse time migration. Numerical tests on synthetic data show that least-squares reverse time migration with the visco-acoustic wave equation corrects for this distortion and produces images with better balanced amplitudes compared to the conventional approach. © 2013 SEG.

Original language	English (US)
Title of host publication	SEG Technical Program Expanded Abstracts 2013
Publisher	Society of Exploration Geophysicists
Pages	3721-3725
Number of pages	5
DOIs	https://doi.org/10.1190/segam2013-1131.1
State	Published - Aug 19 2013

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank the sponsors of the Center for Subsurface Imaging and Modeling (CSIM) consortium for their support and KAUST Supercomputing Laboratory for providing the computational resources.

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10.1190/segam2013-1131.1

https://repository.kaust.edu.sa/bitstream/10754/625127/1/segam2013-1131.1.pdf

Cite this

@inproceedings{dd46610a57a940faa11802637aa3fc08,

title = "Attenuation compensation in least-squares reverse time migration using the visco-acoustic wave equation",

abstract = "Attenuation leads to distortion of amplitude and phase of seismic waves propagating inside the earth. Conventional acoustic and least-squares reverse time migration do not account for this distortion which leads to defocusing of migration images in highly attenuative geological environments. To account for this distortion, we propose to use the visco-acoustic wave equation for least-squares reverse time migration. Numerical tests on synthetic data show that least-squares reverse time migration with the visco-acoustic wave equation corrects for this distortion and produces images with better balanced amplitudes compared to the conventional approach. {\textcopyright} 2013 SEG.",

author = "Gaurav Dutta and Kai Lu and Xin Wang and Schuster, {Gerard T.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank the sponsors of the Center for Subsurface Imaging and Modeling (CSIM) consortium for their support and KAUST Supercomputing Laboratory for providing the computational resources.",

year = "2013",

month = aug,

day = "19",

doi = "10.1190/segam2013-1131.1",

language = "English (US)",

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T1 - Attenuation compensation in least-squares reverse time migration using the visco-acoustic wave equation

AU - Dutta, Gaurav

AU - Lu, Kai

AU - Wang, Xin

AU - Schuster, Gerard T.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We thank the sponsors of the Center for Subsurface Imaging and Modeling (CSIM) consortium for their support and KAUST Supercomputing Laboratory for providing the computational resources.

PY - 2013/8/19

Y1 - 2013/8/19

N2 - Attenuation leads to distortion of amplitude and phase of seismic waves propagating inside the earth. Conventional acoustic and least-squares reverse time migration do not account for this distortion which leads to defocusing of migration images in highly attenuative geological environments. To account for this distortion, we propose to use the visco-acoustic wave equation for least-squares reverse time migration. Numerical tests on synthetic data show that least-squares reverse time migration with the visco-acoustic wave equation corrects for this distortion and produces images with better balanced amplitudes compared to the conventional approach. © 2013 SEG.

AB - Attenuation leads to distortion of amplitude and phase of seismic waves propagating inside the earth. Conventional acoustic and least-squares reverse time migration do not account for this distortion which leads to defocusing of migration images in highly attenuative geological environments. To account for this distortion, we propose to use the visco-acoustic wave equation for least-squares reverse time migration. Numerical tests on synthetic data show that least-squares reverse time migration with the visco-acoustic wave equation corrects for this distortion and produces images with better balanced amplitudes compared to the conventional approach. © 2013 SEG.

UR - http://hdl.handle.net/10754/625127

UR - http://library.seg.org/doi/abs/10.1190/segam2013-1131.1

UR - http://www.scopus.com/inward/record.url?scp=85018196674&partnerID=8YFLogxK

U2 - 10.1190/segam2013-1131.1

DO - 10.1190/segam2013-1131.1

M3 - Conference contribution

SP - 3721

EP - 3725

BT - SEG Technical Program Expanded Abstracts 2013

PB - Society of Exploration Geophysicists

ER -

Attenuation compensation in least-squares reverse time migration using the visco-acoustic wave equation

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