地震资料处理技术新进展——静校正和叠加成像

在第 6 5届EAGE年会发表的有关地震资料处理方面的论文中 ,静校正、去噪和叠加成像技术仍然是资料处理中的一个重要话题。目前 ,静校正已由简单的高程静校正、折射静校正发展到层析静校正、波动方程基准面校正等。在叠加成像方面 ,CRS叠加、非线性扩散滤波等可直接用来提高地震成像质量。叠前的非拉伸动校、子波的一致性、三维速度滤波等叠前处理方法已引起人们的广泛重视。

Advances in seismic data processing:Static correction and stack imaging

Static correction, denoising, and stack imaging are still the most important issues on seismic data processing as seen from the articles presented to the 65 th EAEG annual meeting. Sophisticated static correction methods such as tomographic static correction and wave-equation datuming are emerging. As for stack imaging, CRS stack and nonlinear diffusion filtering have been used to enhance the effects of seismic imaging in various seismic processing steps. Prestack processing methods such as prestack non-stretching NMO, wavelet consistent processing, and 3-D velocity filtering to attenuate the linear noises has attracted significant attention.