地震偏移

地震偏移（seismic migration）是一種地震數據處理，能把地震記錄上的數據回歸到其原來在地下的真實空間位置。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。在地震數據處理時對常規水平疊加之前的地震數據進行偏移處理，稱「地震疊前偏移」，反之稱「地震疊後偏移」 ^[1]^[2]^[3].

參考資料

^ 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.2015.01.004
^ Xue, 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/geo2014-0524.1
^ Chen, 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

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[”Chen”-1] 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.2015.01.004

[”Xue”-2] Xue, 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/geo2014-0524.1

[”Chen1”-3] Chen, 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

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