Stress-induced seismic anisotropy is usually difficult to be separated or decoupled from
intrinsic or fracture-induced anisotropy in the subsurface. To distinguish the effects of …

Fluid discrimination is challenging for reservoir prediction, especially for tight sandstones
with special petrophysical properties. In this paper, we first review the effective medium …

Three-term AVO inversion can be used to estimate P-wave velocity, S-wave velocity, and
density perturbations from reflection seismic data. The density term, however, exhibits little …

The fluid term in the Biot-Gassmann equation plays an important role in reservoir fluid
discrimination. The density term imbedded in the fluid term, however, is difficult to estimate …

Resolving thin layers and clearly delineating layer boundaries in inverted seismic sections
are very important goals for exploration and production. Many seismic inversion methods …

The essential task of reservoir characterization is to predict elastic/petrophysical parameters
or facies from observed seismic data and evaluate their uncertainty. Deep learning-based …

Unconventional reservoirs usually have strong anisotropy. Generally, they can be regarded
as transversely isotropic media with a vertical symmetry axis [(VTI) media] in the absence of …

In VTI media, the conventional inversion methods based on the existing approximation
formulas are difficult to accurately estimate the anisotropic parameters of reservoirs, even …

Seismic estimation of the fluid factor and shear modulus plays an important role in reservoir
fluid identification and characterization. Various amplitude variation with offset inversion …

Amplitude variation with offset (AVO) inversion is a typical ill-posed inverse problem. To
obtain a stable and unique solution, regularization techniques relying on mathematical …