Pre-stack reverse-time migration for elastic waves with application to synthetic offset vertical seismic profiles

A pre-stack migration algorithm for elastic waves in two-dimensional variable-velocity media is developed, implemented, and tested. The algorithm operates in the time-space domain and is based on reverse-time finite-difference extrapolation of elastic waves. The algorithm is explained and demonstrat...

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Bibliographic Details
Published inProceedings of the IEEE Vol. 74; no. 3; pp. 457 - 465
Main Authors Sun, R., McMechan, G.A.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.03.1986
Institute of Electrical and Electronics Engineers
Subjects
Acoustic imaging
Acoustic waves
Applied geophysics
Diffraction
Earth
Earth sciences
Earth, ocean, space
Exact sciences and technology
Extrapolation
Finite difference methods
Geometry
Image coding
Internal geophysics
Reflectivity
Testing
Seismic methods
Algorithms
Propagation
Vertical seismic profiling
Mathematical method
Vertical seismic profiles
Algorithm
Seismic method
Finite difference analysis
Mathematical methods
Finite difference method
Inverse problem
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Summary:A pre-stack migration algorithm for elastic waves in two-dimensional variable-velocity media is developed, implemented, and tested. The algorithm operates in the time-space domain and is based on reverse-time finite-difference extrapolation of elastic waves. The algorithm is explained and demonstrated in the context of imaging of elastic vertical seismic profile data, but is applicable to any source-recorder geometry. Synthetic test examples include a point diffractor, laterally homogeneous layers, and the flank of a salt dome.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9219
1558-2256
DOI:10.1109/PROC.1986.13486