Nettet1. jan. 2024 · However, least-squares Gaussian beam migration in. data domain is computationally expensive, es pecially when. faced with elastic or 3-D cases. In this … NettetABSTRACT Gaussian beam migration (GBM) is an effective imaging method that has the ability to image multiple arrivals while preserving the advantages of ray-based methods. …
Reverse time migration with elastodynamic Gaussian beams
Nettet15. jun. 2024 · Least-square reverse-time migration (LSRTM) is a powerful tool to image subsurface reflectivity with high resolution. It has the ability to reduce migration artifacts, balance amplitudes, and improve imaging resolution. However, the large amount of computation cost is one of its challenging problems, especially for 3D problems. Nettet27. des. 2016 · Gaussian beam migration (GBM) can provide sufficiently accurate images for complex subsurface structures (such as, subsalt regions, granitic basements, and diapir structures) because of its flexibility, efficiency, high signal-to-noise ratio and applicability to steep dip imaging (Vinje et al 2008, Gray et al 2009 ). don wildman tv shows
Angle-domain least-squares Gaussian beam migration
NettetGaussian beam migration (GBM) is an effective imaging method that has the ability to image multiple arrivals while preserving the advantages of ray-based methods. We have extended this method to linearized least-squares imaging for elastic waves in isotropic media. We have dynamically transformed the multicomponent data to the principal … NettetLeast-squares Gaussian beam migration in viscoacoustic media. Article. Oct 2024; Yubo Yue; Yujin Liu; Yaonan Li; Yunyan Shi; Because of amplitude decay and phase dispersion of seismic waves ... don wildmon afr