Recent advances in parameter estimation and seismic processing have allowed
incorporation of anisotropic models into a wide range of seismic methods. In particular …

As has been known for some time, velocities of elastic waves propagating in most
subsurface formations exhibit directional dependence, or seismic anisotropy. On their way to …

The interior of the Earth is quite complex due to the actual geometrical structure and the
presence of complex rheological materials, including viscoelastic rocks, porous sediments …

The accurate determination of seismic attenuation, or 1/Q, is useful for signal enhancement
and reservoir characterization. To arrive at the necessary accuracy however, a number of …

Accurate and efficient modeling of seismic wavefields that accounts for both attenuation and
anisotropy is essential for further development of processing methods. Here, we present a …

Naturally fractured reservoirs are becoming increasingly important for oil and gas
exploration in many areas of the world. Because fractures may control the permeability of a …

Forward modeling of seismic wave propagation is crucial for the realization of reverse time
migration (RTM) and full waveform inversion (FWI) in attenuating transversely isotropic …

Seismic-wave attenuation is an important component of describing wave propagation.
Certain regions, such as gas clouds inside the earth, exert highly localized attenuation. In …

Quality factor Q is an important parameter that accounts for the amplitude dissipation and
phase distortion of seismic waves propagating in the Earth's interior. Q estimation with …

The pseudoviscoacoustic anisotropic wave equation is widely used in the oil and gas
industry for modeling wavefields in attenuating anisotropic media. Compared to the full …