Gaussian beam migration

Author: dwkm

August undefined, 2024

WebJan 15, 2016 · Migration by the Gaussian beam summation method (MGBSM) combines the high efficiency and flexibility of Gaussian beam migration with the high accuracy of … WebOct 17, 2024 · Gaussian beam migration (GBM) has the ability to calculate the multi-arrival travel time, which has the advantages of both high efficiency and high imaging accuracy. In this paper, the observation system and the local plane wave decomposition step will be adjusted to expand the prestack GBM into a VSP imaging method.

Gaussian Beam Summation Migration of Deep Reflection Seismic …

WebAdaptive beam migration (ABM) is the implementation of a prestack depth migration based on Gaussian technology. ABM is a flexible, targetable migration algorithm that combines many of the features associated with … WebNov 13, 2024 · Gaussian beam migration (GBM) is one of the most robust depth imaging method, which not only keeps the advantages of ray methods, such as high efficiency and flexibility, but also allows us to solve caustics and multipathing problems. But conventional Gaussian beam migration requires slant stack for prestack data, and ray tracing from … fillers for brickwork

Gaussian Beam migration: a viable alternative to …

WebJan 1, 2006 · Gaussian beam migration of the two-dimensional Marmousi test data set demonstrates the method's effectiveness for structural imaging in a case where there is multipathing of seismic energy. WebJun 2, 2024 · We proposed an imaging strategy for obtaining true-amplitude imaging results within the framework of least-squares migration. Gaussian beam migration and … WebGaussian beam migration is an elegant imaging method which has the ability to image multiple arrivals while preserving the advantages of ray-based methods. In this paper, we extend this method to linearized least-squares imaging for elastic waves in isotropic media. We dynamically transform the multi-component data to the principal compo- grounded or protected surge protector

Gaussian beam migration of common-shot records

Q -compensated migration by Gaussian beam summation method …

WebApr 14, 2024 · Therefore, Gaussian beam migration (GBM) for free-surface multiples imaging in VSP is proposed. Firstly, based on the ground Gaussian beam pre-stack … WebNov 1, 1990 · This paper describes a zero-offset depth migration method that employs Gaussian beam downward continuation of the recorded wave field.The Gaussian-beam … fillers for cheeksWebSep 1, 2024 · By using complex initial conditions for the dynamic ray system and taking the multipath effect into consideration, our method is applicable to Gaussian beam migration. Numerical experiments of our method have been used to verify its effectiveness, practicability, and efficiency in memory storage and computation. fillers for chin line

"WebApr 14, 2024 · The vertical seismic profiling (VSP) Gaussian beam migration is a seismic imaging method with both computational efficiency and imaging precision. It can get high-resolution structural features near the well. However, the VSP migration based on primary reflection imaging is limited by the observation system, which makes it unable to image … " - Gaussian beam migration

Gaussian beam migration

WebMar 1, 2010 · 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 to ... WebNov 26, 2013 · GaussianBeam computes the profile propagation of a Gaussian laser beam through a set of lenses. Project Samples. Project Activity. See All Activity > Categories …

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WebDepth migration by the Gaussian beam summation method. Seismic depth migration aims to produce an image of seismic reflection interfaces. Ray methods are suitable for subsurface target-oriented imaging and are less costly compared to two-way wave-equation-based migration, but break down in cases when a complex velocity structure gives rise … WebGaussian beam migration is popular for seismic imaging owing to its flexibility and efficiency of implementation. However, the practical use of classic Gaussian beam migration is limited for complicated structures such as subsalt because of poor seismic illumination in those areas. We propose an illumination-compensated Gaussian beam …

WebApr 17, 2001 · This paper presents a prestack Gaussian beam migration method that operates on common-offset gathers. The method is efficient because the computation of … WebJan 15, 2016 · Abstract. Migration by the Gaussian beam summation method (MGBSM) combines the high efficiency and flexibility of Gaussian beam migration with the high accuracy of wave equation reverse-time migration, which can overcome the problems of caustics, handle all arrivals, yield good images of steep flanks, and is readily extendible …

WebHonors multipathing wave propagation. Is localized in space and time. Enables real-time prestack depth migration. Outputs gathers. Gaussian packet migration using a tilted transverse isotropy model. (Data …

WebJun 22, 2024 · The anisotropic migration method has become an important area of focus that needs to be studied for seismic imaging. Gaussian beam migration (GBM) is a valid imaging technique used for anisotropic media and complex subsurface structures. Previous studies on GBM universally rely on local slant stack, which has certain limitations, such …

WebNov 30, 2024 · Therefore, reverse time migration algorithms with Gaussian beams have recently been proposed to reduce the cost, as they combine the high computational efficiency of Gaussian beam migration and the high accuracy of reverse time migration. However, this method was based on the assumption that the subsurface is isotropic. fillers for church bulletinsWebApr 4, 2024 · To alleviate this problem, a common-receiver domain 4C elastic Gaussian beam migration method based on elastic reciprocity transformation that considers the monopole/dipole characters of sources and receivers is developed. Common-receiver migration also is computationally efficient in an OBN survey wherein the number of … fillers for chin wrinklesWebFeb 1, 2024 · The multi-component elastic Gaussian beam migration method based on attenuation compensation in this paper has a more accurate imaging accuracy. The method has three key points: First, based on the elastic Gaussian beams and the corresponding Green's functions, the imaging equations are obtained according to the source … fillers for chin areaWebJan 1, 2024 · The Gaussian beam migration (GBM) is a steady imaging approach, which has high accuracy and efficiency. Its implementation mainly includes the traditional … fillers for chest wrinklesWebWe propose a ray tracing method or the Gaussian beam method. With both methods operators can be efficiently generated for any irregular shooting geometry at the surface. As expected, the amplitude behaviour of the Gaussian beam method is better than that of the ray tracing based operators. fillers for christmas tree decorWebSep 1, 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 … fillers for crows feetWebMar 31, 2024 · Abstract: For the 3-D terahertz (THz) holographic imaging, this work proposes an extended phase-shift migration (PSM) reconstruction algorithm based on multiple-input-multiple-output (MIMO) array with an orthogonal synthetic aperture (SA). For this MIMO-SA-based imaging mechanism, the accurate expression of the signal spatial … fillers for crows feet before and after