[图书][B] Seismic inversion

GT Schuster - 2017 - library.seg.org
This book describes the theory and practice of inverting seismic data for the subsurface rock
properties of the earth. The primary application is for inverting reflection and/or transmission …

-least-squares reverse time migration with viscoacoustic deblurring filters

Y Chen, G Dutta, W Dai, GT Schuster - Geophysics, 2017 - library.seg.org
Viscoacoustic least-squares reverse time migration, also denoted as Q-LSRTM, linearly
inverts for the subsurface reflectivity model from lossy data. Compared with conventional …

Making the most out of least-squares migration

Y Huang, G Dutta, W Dai, X Wang, GT Schuster… - The Leading …, 2014 - library.seg.org
Standard migration images can suffer from (1) migration artifacts caused by an
undersampled acquisition geometry,(2) poor resolution resulting from a limited recording …

Wave-equation migration velocity analysis using plane-wave common-image gathers

B Guo, GT Schuster - Geophysics, 2017 - library.seg.org
Wave-equation migration velocity analysis (WEMVA) based on subsurface-offset, angle
domain, or time-lag common-image gathers (CIGs) requires significant computational and …

A novel approach to determine the Biot's coefficient using X-ray computed tomography

H Salemi, A Yurikov, M Lebedev, P Behnoudfar… - Bulletin of Engineering …, 2021 - Springer
Linear poroelastic effective stress law is often used to relate in situ total stresses to pore fluid
pressure in underground formations. The indirect estimations of effective stress coefficient …

Least-squares migration with primary-and multiple-guided weighting matrices

C Li, J Huang, Z Li, H Yu, R Wang - Geophysics, 2019 - library.seg.org
Least-squares migration (LSM) of seismic data is supposed to produce images of
subsurface structures with better quality than standard migration if we have an accurate …

Adaptive least-squares RTM and application to Freedom WAZ subsalt imaging

C Zeng, S Dong, Z Wu, J Ji, D Armentrout… - … Exposition and Annual …, 2015 - onepetro.org
We propose an adaptive approach to address the practical issues in least-squares reverse
time migration (LSRTM) with a focus on subsalt imaging. The problems include imperfect …

Imaging improvement in angle-domain common-image-gathers by a local stack utilizing segmentation method

P Thongsang, H Hu, A Lau, H Zhou - SEG International Exposition and …, 2018 - onepetro.org
Poynting vector based reverse time migration () can migrate seismic data into angle-domain
common-image gathers (). The quality of common-image-gather is related to the used …

Practical Application of Adaptive Least-Squares Reverse Time Migration (LSRTM) to Advance Field Development and Uncover New Reserves in the Subsalt …

C Zeng, S Dong, Z Wu, J Ji, D Armentrout, B Wang - 2016 - archives.datapages.com
We proposed an adaptive approach to address the practical issues in least-squares reverse
time migration (LSRTM) with a focus on subsalt imaging. The problems included imperfect …

Imaging Enhancement in Angle-Domain Common-Image-Gathers Using the Connected-Component Labeling Method

P Thongsang, H Hu, H Zhou, A Lau - Pure and Applied Geophysics, 2020 - Springer
The quality of seismic migration images strongly depends on accurate velocity models.
However, migration velocity models often contain errors causing artifacts which degrade …