地震偏移

地震偏移（seismic migration）是一種地震数据处理，能把地震记录上的数据回歸到其原来在地下的真实空间位置。偏移能消除繞射，和把傾斜反射面歸位。尤其在地質複雜地區，偏移能對斷層，褶皺等構造的成像，增高精密度。在地震数据处理时对常规水平叠加之前的地震数据进行偏移处理，称“地震叠前偏移”，反之称“地震叠后偏移”
Chen, Yangkang; Yuan, Jiang; Zu, Shaohuan; Qu, Shan; Gan, Shuwei (2015). "Seismic imaging of simultaneous-source data using constrained least-squares reverse time migration". Journal of Applied Geophysics. 114: 32–35.Bibcode:2015JAG...114...32C. doi:10.1016/j.jappgeo.2015.01.004Xue, Zhiguang; Chen, Yangkang; Fomel, Sergey; Sun, Junzhe (2016). "Seismic imaging of incomplete data and simultaneous-source data using least-squares reverse time migration with shaping regularization". Geophysics. 81 (1): S11–S20. Bibcode:2016Geop...81S..11X. doi:10.1190/geo2014-0524.1Chen, Yangkang; Chen, Hanming; Xiang, Kui; Chen, Xiaohong (2017). "Preserving the discontinuities in least-squares reverse time migration of simultaneous-source data". Geophysics. 82 (3): S185–S196. Bibcode:2017Geop...82S.185C. doi:10.1190/geo2016-0456.1.
參考資料

Category:地震學
Category:地球物理学