Enhancing salt model resolution and subsalt imaging with elastic FWI

Z Zhang, Z Wu, Z Wei, J Mei, R Huang, P Wang - The Leading Edge, 2023 - library.seg.org
Full-waveform inversion (FWI) has become the centerpiece of velocity model building (VMB)
in seismic data processing in recent years. It has proven capable of significantly improving …

Magma chamber detected beneath an arc volcano with full‐waveform inversion of active‐source seismic data

K Chrapkiewicz, M Paulatto, BA Heath… - Geochemistry …, 2022 - Wiley Online Library
Arc volcanoes are underlain by complex systems of molten‐rock reservoirs ranging from
melt‐poor mush zones to melt‐rich magma chambers. Petrological and satellite data …

Elastic FWI for large impedance contrasts

Z Wu, Z Wei, Z Zhang, J Mei, R Huang… - … International Meeting for …, 2022 - library.seg.org
Recent advances in full-waveform inversion (FWI) algorithms have allowed it to work stably
and effectively in different geological settings, especially in areas with geobodies of large …

3-D multiparameter full-waveform inversion for ocean-bottom seismic data using an efficient fluid–solid coupled spectral-element solver

J Cao, R Brossier, A Górszczyk… - Geophysical Journal …, 2022 - academic.oup.com
Ocean-bottom seismic acquisition systems deployed on the seabed give access to three-
component geophone data and hydrophone data. Compared with conventional streamer …

Early arrival waveform inversion using data uncertainties and matching filters with application to near-surface seismic refraction data

A Cai, CA Zelt - Geophysics, 2022 - library.seg.org
We develop an early arrival waveform inversion (EAWI) technique for high-resolution near-
surface velocity estimation by iteratively updating the P-wave velocity model to minimize the …

Two‐dimensional SH‐wave and acoustic P‐wave full waveform inversion: A Midland Basin case study

Y Liu, J Simmons - Geophysical Prospecting, 2024 - Wiley Online Library
Building a reliable S‐wave velocity model remains challenging from P‐wave land seismic
data as multi‐parameter elastic full waveform inversion which updates P‐and S‐wave …

Neural networks as a tool for domain translation of geophysical data

J Yao, L Guasch, M Warner - Geophysics, 2023 - library.seg.org
Many geophysical tasks are hindered in practice by the high costs of generating and
processing data. We have developed a potential solution, mitigating the cost of certain data …

Two-step full waveform inversion of diving and reflected waves with the diffraction-angle-filtering-based scale-separation technique

D Kim, J Hwang, DJ Min, JW Oh… - Geophysical Journal …, 2022 - academic.oup.com
Full waveform inversion (FWI) is a highly non-linear optimization problem that aims to
reconstruct high-resolution subsurface structures. The success of FWI in reflection …

Multi-parameter full waveform inversion using only the streamer data based on the acoustic-elastic coupled wave equation

Y Tao, L Yuzhu, W Zheng, Z Jianming - Journal of Applied Geophysics, 2023 - Elsevier
The ocean seismic pressure data observed by hydrophones contain the elastic information
of the subsurface medium, although few studies of full waveform inversion (FWI) regard the …

Diffraction-Angle Filtering-Based Two-Step Acoustic Full-Waveform Inversion for 3-D Seismic Reflection Data

D Kim, DJ Min, JW Oh - IEEE Transactions on Geoscience and …, 2024 - ieeexplore.ieee.org
Full-waveform inversion (FWI) aims at building a high-resolution velocity model by fitting
numerically computed seismic data to observed one. Considering both the kinematic and …