Reflection seismic waveform tomography of physical modelling data
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Waveform tomography is commonly tested using numerically generated synthetic seismic data, before the method is applied to field seismic data. However, there are often noticeable differences between idealized synthetic data and real field data, and many factors in the field data, such as noise, irregular source/receiver geometry, affect the inversion solutions. For exploring the potential of reflection seismic waveform tomography, we presented a more realistic test than the synthetic data test, by applying it to physical modelling data, to reconstruct a laboratorial model with complex velocity variation. First, we provided a formulation of the perfectly matched layer absorbing boundary condition, associated with the second-order acoustic wave equation, in order to suppress artificial reflections from subsurface model boundaries in seismic waveform simulation and tomography. Then, we demonstrated the successful implementation of a layer-striping inversion scheme applicable to reflection seismic waveform tomography. Finally, we confirmed the effectiveness of frequency grouping, rather than a single frequency at each iteration, a strategy specifically for the frequency-domain waveform tomography.
Date Issued
2016-04-01
Date Acceptance
2016-01-18
Citation
Journal of Geophysics and Engineering, 2016, 13 (2), pp.146-151
ISSN
1742-2132
Publisher
Oxford University Press (OUP)
Start Page
146
End Page
151
Journal / Book Title
Journal of Geophysics and Engineering
Volume
13
Issue
2
Copyright Statement
© 2016 Sinopec Geophysical Research Institute.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000376496500011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Geochemistry & Geophysics
waveform tomography
perfectly matched layer
reflection seismic
full waveform inversion
layer striping scheme
PERFECTLY MATCHED LAYER
ABSORBING BOUNDARY-CONDITION
REAL DATA APPLICATION
MULTIPLE PREDICTION
INVERSION
ATTENUATION
MEDIA
ELASTODYNAMICS
EQUATIONS
Publication Status
Published
Date Publish Online
2016-03-08