We present a new subsurface angle-domain seismic imaging system for generating and
extracting high-resolution information about subsurface angle-dependent reflectivity. The …

Complex velocity models characterized by strong lateral variations are certainly a great
motivation, but also a great challenge, for depth imaging. In this context, some unexpected …

Ray-based prestack depth migration fails to image quantitatively complex structures when a
single arrival—for example, the first or the strongest one—is taken into account. In this …

各向异性射线理论基础上的局部角度域叠前深度偏移方法能够为深度域构造成像与基于角道集
的层析反演提供有力支撑, 但是对于复杂地质构造而言, 高斯度叠前深度偏移在不失高效 …

In this paper, we evaluate the capacity of a fast 2-D ray+ Born migration/inversion algorithm
to recover the true amplitude of the model parameters in 2-D complex media. The method is …

Velocity macromodel building is an essential step of the seismic imaging workflow. Indeed,
obtaining acceptable results through migration or full waveform inversion is highly …

Angle-domain prestack depth migration based on anisotropic ray theory can provide strong
support to the structural imaging in the depth domain and angle-gather-based seismic …

传统炮检距域共像集(CIG) 在复杂介质中因波传播的多路径而存在反射体位置不确定的问题.
角度域CIG 由于克服了这一缺陷而逐步成为速度分析, AVA 以及振幅保真偏移成像等研究的 …

In complex structures, more than one pair of rays may connect a source and receiver via a
scattering point. Whenever many such pairs of rays exist and have the same two-way …

Conventional prestack migration does not preserve local directional information of the
seismic waves at the image points. New attempts such as sectored migration of azimuth …