Poynting and polarization vectors based wavefield decomposition and their application on elastic reverse time migration in 2D transversely isotropic media

We thank the National Natural Science Fund of China (under grant 41330316) and the National Major Project of China (under grant 2017ZX05008-007) for supporting this work. We also acknowledge the two reviewers and associate editor Tariq Alkhalifah for reviewing this manuscript and their constructive comments have greatly improved this manuscript. We are grateful to Dr Umair bin Waheed for his kind help. The research is a part of Collaboration Project of Seismic Imaging in Elastic Medium of the China National Petroleum Corporation.

[1]  L. Thomsen.  Weak elastic anisotropy , 1986 .

[2]  D. Komatitsch,et al.  The spectral element method: An efficient tool to simulate the seismic response of 2D and 3D geological structures , 1998, Bulletin of the Seismological Society of America.

[3]  Yilong Qin,et al.  Direction-Vector-Based Angle Gathers From Anisotropic Elastic RTM , 2013 .

[4]  Qiancheng Liu,et al.  Non-overlapped P- and S-wave Poynting vectors and their solution by the grid method , 2018 .

[5]  P. Sava,et al.  Wide‐azimuth angle gathers for anisotropic wave‐equation migration , 2013 .

[6]  Tariq Alkhalifah,et al.  Tau migration and velocity analysis: Theory and synthetic examples , 2003 .

[7]  Qiang Zhao,et al.  Vector-based elastic reverse time migration based on scalar imaging condition , 2017 .

[8]  P- and S-wave energy flux density vectors , 2016 .

[9]  M. X. Wang,et al.  Full-wave Equation Based Illumination Analysis by NAD Method , 2013 .

[10]  Hao Zhang,et al.  Fast Poynting-vector based wave-mode separation and RTM in 2D elastic TI media , 2019, J. Comput. Phys..

[11]  G. McMechan,et al.  Elastic reverse-time migration , 1987 .

[12]  I. Tsvankin.  P-wave signatures and notation for transversely isotropic media: An overview , 1996 .

[13]  Zhang Jianfeng,et al.  Elastic wave modelling in 3D heterogeneous media: 3D grid method , 2002 .

[14]  Tariq Alkhalifah,et al.  Acoustic approximations for processing in transversely isotropic media , 1998 .

[15]  A fast pointwise strategy for anisotropic wave-mode separation in TI media , 2017 .

[16]  Zhang Jianfeng,et al.  P–SV-wave propagation in heterogeneous media: grid method , 1999 .

[17]  G. McMechan,et al.  Vector-based elastic reverse time migration , 2015 .

[18]  Paul Sava,et al.  Isotropic angle-domain elastic reverse-time migration , 2008 .

[19]  Kurt J. Marfurt,et al.  Reverse-Time Migration using the Poynting Vector , 2006 .

[20]  Jianfeng Zhang,et al.  Unstructured mesh based elastic wave modelling on GPU: a double-mesh grid method , 2017 .

[21]  George A. McMechan,et al.  3-D elastic prestack, reverse-time depth migration , 1994 .

[22]  Efficient wave-mode separation in vertical transversely isotropic media , 2017 .

[23]  Bin Wang,et al.  3D RTM angle gathers from source wave propagation direction and dip of reflector , 2011 .

[24]  J. Etgen,et al.  Wave-field separation in two-dimensional anisotropic media , 1990 .

[25]  Xiao-Bi Xie,et al.  An angle-domain wavenumber filter for multi-scale full-waveform inversion , 2015 .

[26]  Qiancheng Liu,et al.  Reverse‐time migration from rugged topography using irregular, unstructured mesh , 2017 .

[27]  Jia Yan,et al.  Elastic wave-mode separation for VTI media , 2009 .

[28]  S. Fomel,et al.  Fast algorithms for elastic-wave-mode separation and vector decomposition using low-rank approximation for anisotropic media , 2014 .

[29]  G. McMechan,et al.  2D and 3D elastic wavefield vector decomposition in the wavenumber domain for VTI media , 2010 .

[30]  J. Ba,et al.  Polarity reversal correction for elastic reverse time migration , 2012 .

[31]  Hao Zhang,et al.  Eliminating the redundant source effects from the cross-correlation reverse-time migration using a modified stabilized division , 2016, Comput. Geosci..

[32]  Paul Sava,et al.  Scalar imaging condition for elastic reverse time migration , 2015 .

[33]  Hongwei Gao,et al.  Parallel 3‐D simulation of seismic wave propagation in heterogeneous anisotropic media: a grid method approach , 2006 .

[34]  Thomas A. Dickens,et al.  RTM angle gathers using Poynting vectors , 2011 .

[35]  T. Alkhalifah,et al.  Simulating propagation of decoupled elastic waves using low-rank approximate mixed-domain integral operators for anisotropic media , 2016 .

[36]  Jia Yan,et al.  Reverse time migration angle gathers using Poynting vectors , 2016 .

[37]  Jia Yan,et al.  Improving the efficiency of elastic wave-mode separation for heterogeneous tilted transverse isotropic media , 2011 .

[38]  James G. Berryman,et al.  Long-wave elastic anisotropy in transversely isotropic media , 1979 .