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Proceedings Papers

Localized wavefield inversion (LWI): An adaptation of multi-block ADMM for localized FWI

Hossein S. Aghamiry, Ali Gholami, Stephane Operto, Alison Malcolm
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745587
DOI: https://doi.org/10.1190/image2022-3745587.1
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View Paper titled, Localized wavefield inversion (LWI): An adaptation of multi-block ADMM for localized FWI
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Proceedings Papers

Least-squares RTM with shifted total variation regularization for depth imaging of sparse short-offset seismic data

Toktam Zand, Andrzej Gorszczyk, Ali Gholami, Hasan Ghasemzadeh, Alison Malcolm
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3751356
DOI: https://doi.org/10.1190/image2022-3751356.1
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View Paper titled, Least-squares RTM with shifted total variation regularization for depth imaging of sparse short-offset seismic data
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Proceedings Papers

Enabling uncertainty quantification for seismic data preprocessing using normalizing flows (NF) — An interpolation example

Rajiv Kumar, Maria Kotsi, Ali Siahkoohi, Alison Malcolm
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583705
DOI: https://doi.org/10.1190/segam2021-3583705.1
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View Paper titled, Enabling uncertainty quantification for seismic data preprocessing using normalizing flows (NF) — An interpolation example
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Proceedings Papers

Inversion comparison using an elastic local solver to recover elastic parameters

Ligia Elena Jaimes-Osorio, Alison Malcolm
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3564832
DOI: https://doi.org/10.1190/segam2021-3564832.1
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View Paper titled, Inversion comparison using an elastic local solver to recover elastic parameters
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Proceedings Papers

3D radio-frequency electromagnetic wave modelling with an optimized frequency-domain finite-difference scheme

Polina Zheglova, Colin Farquharson, Alison Malcolm
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3585521
DOI: https://doi.org/10.1190/segam2021-3585521.1
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View Paper titled, 3D radio-frequency electromagnetic wave modelling with an optimized frequency-domain finite-difference scheme
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Proceedings Papers

Time-lapse full-waveform inversion using Hamiltonian Monte Carlo: A proof of concept

Maria Kotsi, Alison Malcolm, Gregory Ely
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3422774
DOI: https://doi.org/10.1190/segam2020-3422774.1
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View Paper titled, Time-lapse full-waveform inversion using Hamiltonian Monte Carlo: A proof of concept
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Proceedings Papers

Multiparameter full-waveform inversion in fluid-saturated porous media

Qingjie Yang, Alison Malcolm, Bing Zhou, Herurisa Rusmanugroho
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3425691
DOI: https://doi.org/10.1190/segam2020-3425691.1
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View Paper titled, Multiparameter full-waveform inversion in fluid-saturated porous media
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Proceedings Papers

Taking advantage of receiver ghosts and pressure gradients in vector acoustic full waveform inversion

Polina Zheglova, Alison Malcolm
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215593
DOI: https://doi.org/10.1190/segam2019-3215593.1
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View Paper titled, Taking advantage of receiver ghosts and pressure gradients in vector acoustic full waveform inversion
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Proceedings Papers

Improved well log classification using semi-supervised algorithms

Michael W. Dunham, Alison Malcolm, J. Kim Welford
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3208817
DOI: https://doi.org/10.1190/segam2019-3208817.1
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View Paper titled, Improved well log classification using semi-supervised algorithms
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Proceedings Papers

A numerical study of how randomly oriented cracks influence the nonlinear interactions of elastic waves

Herurisa Rusmanugroho, Alison Malcolm, Meghdad Darijani
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214868
DOI: https://doi.org/10.1190/segam2019-3214868.1
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View Paper titled, A numerical study of how randomly oriented cracks influence the nonlinear interactions of elastic waves
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Proceedings Papers

Single parameter full waveform inversion in fluid-saturated porous media

Qingjie Yang, Alison Malcolm
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214794
DOI: https://doi.org/10.1190/segam2019-3214794.1
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View Paper titled, Single parameter full waveform inversion in fluid-saturated porous media
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Proceedings Papers

A multiscale full-waveform inversion strategy for sparse wide-angle datasets

Christopher Williams, Alison Malcolm, J. Kim Welford
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214858
DOI: https://doi.org/10.1190/segam2019-3214858.1
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View Paper titled, A multiscale full-waveform inversion strategy for sparse wide-angle datasets
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Proceedings Papers

4D multiparameter adaptive metropolis hastings inversion

Maria Kotsi, Alison Malcolm, Gregory Ely
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215046
DOI: https://doi.org/10.1190/segam2019-3215046.1
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View Paper titled, 4D multiparameter adaptive metropolis hastings inversion
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Proceedings Papers

Suppression of internal multiples with a group sparse Radon transform for imaging the interior of bone

Gregory Ely, Alison Malcolm, Guillaume Renaud
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997719
DOI: https://doi.org/10.1190/segam2018-2997719.1
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View Paper titled, Suppression of internal multiples with a group sparse Radon transform for imaging the interior of bone
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Proceedings Papers

4D full-waveform metropolis hastings inversion using a local acoustic solver

Maria Kotsi, Alison Malcolm, Gregory Ely
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997858
DOI: https://doi.org/10.1190/segam2018-2997858.1
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View Paper titled, 4D full-waveform metropolis hastings inversion using a local acoustic solver
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Proceedings Papers

Multi-parameter vector acoustic full waveform inversion

Polina Zheglova, Mostafa Akrami, Alison Malcolm
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998081
DOI: https://doi.org/10.1190/segam2018-2998081.1
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View Paper titled, Multi-parameter vector acoustic full waveform inversion
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Proceedings Papers

Parameter trade-offs in FWI in fluid-saturated porous media

Qingjie Yang, Alison Malcolm, Herurisa Rusmanugroh, Weijian Mao
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2989796
DOI: https://doi.org/10.1190/segam2018-2989796.1
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View Paper titled, Parameter trade-offs in FWI in fluid-saturated porous media
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Proceedings Papers

A numerical modeling of how cracks influence the nonlinear interactions of P- and S-waves

Herurisa Rusmanugroho, Alison Malcolm, Meghdad Darijani
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997288
DOI: https://doi.org/10.1190/segam2018-2997288.1
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View Paper titled, A numerical modeling of how cracks influence the nonlinear interactions of P- and S-waves
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Proceedings Papers

Amplitude variation with offset (AVO) inversion modeling with a local elastic solver

Ligia Elena Jaimes Osorio, Alison Malcolm
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996106
DOI: https://doi.org/10.1190/segam2018-2996106.1
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View Paper titled, Amplitude variation with offset (AVO) inversion modeling with a local elastic solver
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Proceedings Papers

How fracture orientation and particle motion impact nonlinear interactions in an elastic medium

Lauren Hayes, Alison Malcolm
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17663124
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View Paper titled, How fracture orientation and particle motion impact nonlinear interactions in an elastic medium
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