Figure 9 Vector Based Elastic Reverse Time Migration Prestack elastic reverse time migration (rtm) of multicomponent seismic data requires separating pp and ps reflections before, or as part of, applying the image condition, and using image. We have created a new 2d migration context for isotropic, elastic rtm, which included decomposition of the elastic source and receiver wavefields into p and s wave vectors by decoupled elastodynamic extrapolation, which retained the same stress and particle velocity components as the input data.
Figure 1 From Elastic Reverse Time Migration Method For Single Well Abstract prestack elastic reverse time migration (rtm) of multicomponent seismic data requires separating pp and ps reflections before, or as part of, applying the image condition, and using image conditions that preserve the angle and amplitude information. We propose a method that utilizes decoupled elastic wave equations to achieve vector elastic reverse time migration imaging of multicomponent seismic data excited by s waves source. We have created a new 2d migration context for isotropic, elastic rtm, which included decomposition of the elastic source and receiver wavefields into p and s wave vectors by decoupled elastodynamic extrapolation, which retained the same stress and particle velocity components as the input data. To address this issue, we propose a vector wavefield decoupling method tailored for fluid solid coupled media, aiming to achieve more accurate elastic vector wave imaging for ocean bottom node (obn) data.
Pdf Elastic Wave Pre Stack Reverse Time Migration Based On The Second We have created a new 2d migration context for isotropic, elastic rtm, which included decomposition of the elastic source and receiver wavefields into p and s wave vectors by decoupled elastodynamic extrapolation, which retained the same stress and particle velocity components as the input data. To address this issue, we propose a vector wavefield decoupling method tailored for fluid solid coupled media, aiming to achieve more accurate elastic vector wave imaging for ocean bottom node (obn) data. To effectively enhance the accuracy of elastic wave imaging, we propose an elastic rtm based on first order velocity dilatation rotation equations using the optical flow vector. To solve this problem, this study presents an effective vector p and s wavefield decomposition scheme in ertm that can improve the images of 3d transversely isotropic (ti) media. The reverse time migration method is based on two way wave equations which can accurately describe fully dynamic and kinematic characteristics of the wavefield in complex structural areas. In this paper, we use elastic modeling process to generate p&s shot records. then we use acoustic rtm and least squares rtm to migrate these elastic data, using p and s velocities in different experiments.
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