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 …

The subsurface velocity model is crucial for high-resolution seismic imaging. Although full-
waveform inversion (FWI) is a high-accuracy velocity inversion method, it inevitably suffers …

Pores and microfractures provide storage spaces and migration pathways for gas
accumulation in tight sandstones with low porosity and permeability, acting as one of the …

The accumulation of organic matter is the basis for gas generation and significantly affects
the ultimate gas production in shale reservoirs. Estimation of organic enrichment using …

Horizontally transverse isotropy (HTI) induced by vertical or subvertical aligned fractures is
common for unconventional fractured porous shale oil or gas reservoirs. Compared with the …

Fracture detection and characterization remains challenging for azimuthal seismic inversion
for effective elastic anisotropic media, especially for the more complex orthorhombic (ORT) …

Fractures are essential for gas accumulation in tight sandstones, as they enhance reservoir
permeability and provide migration paths for fluid transport. The presence of fractures …

Insights into the reflection and transmission (R/T) of waves at a prestressed interface are
important in geophysical applications, such as evaluating the angle-dependent elastic …

Seismic characterization of anisotropic in situ stress is of great importance in improving the
success of planning drilling and hydraulic fracturing treatment. Shales generally exhibit …

Tight sandstones produce an increasing amount of natural gas worldwide. Apart from
identifying the gas enrichment, the predictions of lithology and permeable zones are crucial …