Reverse time migration: A prospect of seismic imaging methodology

HW Zhou, H Hu, Z Zou, Y Wo, O Youn - Earth-science reviews, 2018 - Elsevier
Reverse time migration (RTM) is a seismic imaging method to map the subsurface reflectivity
using recorded seismic waveforms. The practice in exploration seismology has long …

Reverse time migration with optimal checkpointing

WW Symes - Geophysics, 2007 - library.seg.org
Reverse time migration (RTM) requires that fields computed in forward time be accessed in
reverse order. Such out-of-order access, to recursively computed fields, requires that some …

Reverse-time migration using the Poynting vector

K Yoon, KJ Marfurt - Exploration Geophysics, 2006 - Taylor & Francis
Recently, rapid developments in computer hardware have enabled reverse-time migration to
be applied to various production imaging problems. As a wave-equation technique using the …

Vector-based elastic reverse time migration based on scalar imaging condition

Q Du, CF Guo, Q Zhao, X Gong, C Wang, X Li - Geophysics, 2017 - library.seg.org
The scalar images (PP, PS, SP, and SS) of elastic reverse time migration (ERTM) can be
generated by applying an imaging condition as crosscorrelation of pure wave modes. In …

Challenges in reverse-time migration

K Yoon, KJ Marfurt, W Starr - SEG International Exposition and Annual …, 2004 - onepetro.org
As a wave equation technique using two-way hyperbolic wave equation, reverse-time
migration can handle not only multi-arrivals but steep dips and overturned reflections also …

[HTML][HTML] 地震叠前逆时偏移的有效边界存储策略

王保利, 高静怀, 陈文超, 张唤兰 - 地球物理学报, 2012 - html.rhhz.net
基于双程波动方程的逆时偏移被认为是目前最好的偏移成像技术, 更适合于复杂构造成像. 然而,
大计算量和大存储量使得逆时偏移的计算成本很高而无法用于大数据量的地震成像 …

An anisotropic acoustic wave equation for modeling and migration in 2D TTI media

H Zhou, G Zhang, R Bloor - SEG technical program expanded …, 2006 - library.seg.org
In this abstract, we propose a new anisotropic acoustic wave equation for 2D TTI media. This
is the extension of our previous work on VTI media to TTI media. Similar to VTI case, we …

Maximum performance computing with dataflow engines

O Pell, O Mencer, KH Tsoi, W Luk - High-performance computing using …, 2013 - Springer
Abstract Maximum Performance Computing (MPC) means striving to deliver the maximum
possible performance within a space and/or power budget. The essence of the method is to …

Computational strategies for reverse-time migration

WW Symes, B Denel, A Cherrett, E Dussaud… - … Exposition and Annual …, 2008 - onepetro.org
The imaging condition used in reverse-time migration requires that the source wavefield
(computed via a forward recursion) and the receiver wavefield (computed via a backwards …

An anisotropic acoustic wave equation for VTI media

H Zhou, G Zhang, R Bloor - 68th EAGE Conference and Exhibition …, 2006 - earthdoc.org
Here we propose a new anisotropic acoustic wave equation based on the same dispersion
relation as Alkhalifah's (2000), but introducing an auxiliary function which allows the original …