A study of viscous effects in seismic modeling, imaging, and inversion: Methodology, computational aspects, and sensitivity
Date
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Real Earth media are anelastic, which affects both the kinematics and dynamics of propagating waves: Waves are attenuated and dispersed. If anelastic effects are neglected, inversion and migration can yield erroneous results. The anelastic effects in real rocks can be well described by a viscoelastic model. Hence, viscoelastic wave propagation simulation is a well suited base for realistic seismic inversion algorithms derived through the adjoint state technique.
The thesis develops a finite-difference simulator to model wave propagation in viscoelastic media. The viscoelastic scheme, which is dispersion and stability analyzed, is only slightly more expensive than analogous elastic schemes. The thesis also presents a method for modeling of constant Q as a function of frequency based on an explicit closed formula for calculation of the parameter fields.
The
Description
Advisor
Degree
Type
Keywords
Citation
Blanch, Joakim Oscar. "A study of viscous effects in seismic modeling, imaging, and inversion: Methodology, computational aspects, and sensitivity." (1996) Diss., Rice University. https://hdl.handle.net/1911/16968.