Prestack Reverse Time Migration of Crosshole Seismic Elastic Wave Based on Decoupling of Longitudinal and Shear Wave

机译：基于纵波与剪切波解耦的井间地震弹性波叠前逆时偏移

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Through deriving the generalized first order stress-velocity unconverted wave equation,it is not necessary for the data to separate the longitudinal wave from the shear wave before prestack reverse time migration of the elastic wave and it can realize the imaging method of prestack reverse time migration of the independently imaged vectors of the longitudinal and shear wave by means of the characteristics of the elastic wave vectors in the process of extrapolation of the wave field.Through the theoretical model and the migration imaging of the actual data,it validates the feasibilities of this method and both its imaging precision and the computation speed are greatly improved.

机译：通过推导广义一阶应力-速度非转换波方程，在弹性波叠前逆时偏移之前，无需将纵波与切变波分离，可以实现叠前逆时偏移的成像方法。利用弹性波矢量在波场外推过程中的特性，对纵波和切波的独立成像矢量进行分析。通过理论模型和实际数据的偏移成像，验证了该方法的可行性。该方法及其成像精度和计算速度都大大提高了。

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《International conference on environmental and engineering geophysics》|2012年|256-265|共10页
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Dazhou Zhang; Shilei Wei; Xiaocong Lian;
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中图分类环境生物学;
关键词
crosshole seismic; reverse time migration; elastic wave; decoupling;

机译：井间地震;逆时偏移;弹性波;解耦;

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3. Scalar and vector imaging based on wave mode decoupling for elastic reverse time migration in isotropic and transversely isotropic media [J] . Wang Chenlong, Cheng Jiubing, Arntsen Borge Geophysics: Journal of the Society of Exploration Geophysicists . 2016,第5期

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4. Prestack Reverse Time Migration of Crosshole Seismic Elastic Wave Based on Decoupling of Longitudinal and Shear Wave [C] . Dazhou Zhang, Shilei Wei, Xiaocong Lian International conference on environmental and engineering geophysics . 2012

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6. Longitudinal shear waves for elastic characterization of tissues in optical coherence elastography [O] . Fernando Zvietcovich, Gary R. Ge, Humberto Mestre, 2019

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Prestack Reverse Time Migration of Crosshole Seismic Elastic Wave Based on Decoupling of Longitudinal and Shear Wave

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