Gaussian beam migration
WebKirchhoff migration is the most popular method of three‐dimensional prestack depth migration because of its flexibility and efficiency. Its effectiveness can become limited, however, when complex velocity structure causes multipathing of seismic energy. An alternative is Gaussian beam migration, which is an extension of Kirchhoff migration … 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 …
Gaussian beam migration
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WebGaussian beam migration (Hill, 1990, 2001). This method retains the strengths of Kirchhoff migration, but can also image multiple arrivals. Although Hill gives the … WebMar 19, 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 to ...
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 … WebFigure 4.20 illustrates the Gaussian beam. At z = 0, the beam radius W(z) is minimum (waist W 0) and the wavefront is planar (curvature radius R(∞) = 00).The beam waist …
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. 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 …
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 …
WebFeb 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 … hughes kettern amp cabinetWebSep 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. holiday inn club holiday hills resortWebUnlike other raypath methods, Gaussian beam migration has guaranteed regular behavior at caustics and shadows. In addition, the method determines the beam spacing that ensures efficient, accurate calculations. The images produced by Gaussian beam migration are … About GEOPHYSICS. GEOPHYSICS, published by the Society of Exploration … To avoid the defocusing effects of propagating waves through salt and … To: “Vibroseis sweep sequencing research based on convex optimization model,” … This paper presents an effort toward interactive migration. A prestack … , eds., Anisotropy 2000: Fractures, converted waves and case studies: … In this article, I attempt to focus on the chronology of seismic imaging. I start in … Can't sign in? Forgot your password? Enter your email address below and we will … A migration algorithm and computer codes based on the Gaussian beam method … A beam implementation is presented for efficient full‐volume 3-D prestack … If the address matches an existing account you will receive an email with … hughes kitchens clontarfWebGaussian 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- hughes kitchens \u0026 bath canton ohWebThe Gaussian‐beam migration method has advantages for imaging complex structures. Like finite‐difference migration, it is especially compatible with lateral variations in velocity, but Gaussian beam migration can image steeply dipping reflectors and will not produce unwanted reflections from structure in the velocity model. holiday inn club pointsWebApr 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 … hughes kitchen el renoWebWe 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. hughes kitchens and bath