Diffraction imaging aims to emphasize small-scale subsurface heterogeneities, such as
faults, pinch-outs, fracture swarms, channels, etc. and can help seismic reservoir …

To improve the time-domain imaging of poor-quality seismic data, the common-reflection-
surface (CRS) stack method was introduced to simulate zero-offset (ZO) stacked sections …

The fault-karst reservoir, which evolved from the deformation and karstification of carbonate
rock, is one of the most important reservoir types in Western China. Along the deep-seated …

Diffraction imaging aims to emphasize small subsurface objects, such as faults, fracture
swarms, and channels. Similar to classical reflection imaging, velocity analysis is crucially …

We have used least-squares migration to emphasize edge diffractions. The inverted forward-
modeling operator is the chain of three operators: Kirchhoff modeling, azimuthal plane-wave …

Diffracted waves contain a great deal of valuable information about small-scale subsurface
structure such as faults, pinch-outs, karsts, and fractures, which are closely related to …

Seismic diffraction waveform energy contains important information about small-scale
subsurface elements, and it is complementary to specular reflection information about …

Oriented time-domain imaging can be orders of magnitude faster than the routine
techniques, which rely on velocity analysis. The term “oriented” refers to those techniques …

Diffracted waves contain valuable information of small-scale subsurface structures such as
faults, pinch-outs and karsts, which are closely linked to hydrocarbon exploration. Therefore …

D imaging of diffractions is still a challenge since they are inherently of 3-D nature. We need
to consider three dimensions if we want to correctly image diffractions. Seismic diffractions …