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Least-squares gaussian beam migration

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 https://soulfitfoods.com

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

Elastic least-squares Gaussian-beam migration - Semantic Scholar

Category:An illumination‐compensated Gaussian beam migration for …

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Least-squares gaussian beam migration

An Effective True-Amplitude Gaussian Beam Migration via

Nettet1. aug. 2024 · Q least-squares reverse time migration based on the first-order viscoacoustic quasidifferential equations. Article. Apr 2024. GEOPHYSICS. Yingming Qu. Yixin Wang. Zhenchun Li. Chang Liu. View. Nettet1. apr. 2016 · We have developed a test of the feasibility of using the Gaussian beam as the wavefield extrapolating operator for the LSM, denoted as least-squares Gaussian …

Least-squares gaussian beam migration

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NettetA theory of least-squares Gaussian beam migration (LSGBM) is presented to optimally estimate a subsurface reflectivity. In the iterative inversion scheme, a Gaussian beam … Nettet19. mar. 2024 · 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. We have extended this method...

Nettet10. apr. 2024 · beams with different take-off angles propagate independentl y, which enables Gaussian beam migration (GBM) to utilize multipath information to image … NettetWe have developed a least-squares Gaussian beam migration method for viscoacoustic data imaging, which can not only compensate for amplitude decay and phase …

Nettet10. apr. 2024 · We propose a least-squares migration approach based on the time-domain Gaussian beam summation, which helps to balance subsurface illumination … NettetElastic Least-squares Gaussian beam migration Yubo Yue R&D Center, BGP, CNPC ABSTRACT Gaussian beam migration is an elegant imaging method which has the …

Nettet9. mai 2024 · Elastic least-squares migration (ELSM) has the potential to produce high-resolution images. It can be implemented in either data-domain or image-domain but is …

NettetWe have developed a test of the feasibility of using the Gaussian beam as the wavefield extrapolating operator for the LSM, denoted as least-squares Gaussian beam migration. Our method combines the advantages of the LSM and the efficiency of the Gaussian … don wilesNettetABSTRACT Elastic full-waveform inversion (FWI) can provide accurate and high-resolution subsurface parameters. However, its high computational cost prevents the application of this method to large-scale field-data scenarios. To mitigate this limitation, we have developed a target-oriented elastic FWI methodology based on a redatuming step that … don wildt heating and coolinghttp://en.dzkx.org/article/doi/10.6038/cjg2024O0509 don wildmon it\\u0027s my turnNettetABSTRACT Four-component ocean-bottom node (OBN) surveys allow for the imaging of subsurface elastic properties for oil and gas exploration in deepwater environments. … don wildman laird hamiltonNettet1. sep. 2024 · Request PDF On Sep 1, 2024, Jidong Yang and others published Angle-domain least-squares Gaussian beam migration Find, read and cite all the research … city of kingston ny parking permitNettet18. okt. 2015 · Our method combines the advantages of the least-squares migration and the efficiency of the Gaussian beam propagator. This approach is implemented in the … don wiles obituaryNettetAs the demand for ore resources increases, the target for mineral exploration gradually shifts from shallow to deep parts of the Earth (>1 km). However, for the ore-hosting strata, it is difficult to obtain high-resolution images by using the electromagnetic method. Seismic full waveform inversion (FWI) is an optimization algorithm which aims at … don wildman movies and tv shows