摘要
当今石油工业界使用的大部分偏移算子都是在假设地球为均匀各向同性介质的前提下经过一定的近似得到的，其应用有一定的局限性。因为经过大量的研究已经证实地壳和上地幔是各向异性介质，不考虑介质各向异性的偏移算子必然带来一些在反射点归位方面的不可估计的错误。从弹性波动方程出发，推导出了适用于各向异性介质中进行弹性波多分量联合偏移处理的偏移算子，并用数据实例进行证明。
The most popular migration algorithm used in present petroleum industry is mostly obtained with the assumption of isotropic media. Its usefullness is rather limited. It has been verified through many studies that crust and upper mantle are anisotropic. The error of migration is caused by migration algorithm without consideration of anisotropy. Based on the equation of elastic wave, a migration algorithm using elastic wave propagation in anisotropic media is proposed and tested with raw data.
出处
《长春科技大学学报》
CSCD
2000年第1期67-70,75,共5页
Journal of Changchun University of Science and Technology
基金
国家自然科学基金!资助项目(49574211)
