... In this work, we present a method that overcomes the propagation angle limitation in the classical parabolic approximation. The key point of the method is to use the idea of the domain decomposition and to approximate the wave equation in every subdomain along a local propagation direction. Thus...

... of just one to represent the spatially varying order. A numerical implementation scheme for parallel computing, domain decomposition, has been adopted to take advantage of the local pseudo-spectral method, which improves both numerical accuracy and computing efficiency. A tapering internal boundary...

... ABSTRACT We present a domain decomposition method, i,e, a discontinuous Galerkin pseudospectral time domain algorithm to simulate wave propagation in 3-D full anisotropic elastic media. An exact upwind flux is first proposed to resolve the accurate coupling of multiple domains...

.... Presentation Date: Monday, October 17, 2016 Start Time: 1:50:00 PM Location: 141 Presentation Type: ORAL reservoir characterization university of california domain decomposition method green operator upstream oil & gas inversion equation scattering-path operator jakobsen seg seg...

.../separating bodies as the evolution proceeds, as well as the ability to handle sharp corners and cusps in the lowerdimensional (2D) plane on which the boundary exists. convergence objective function variation application upstream oil & gas domain decomposition machine learning update gradient...

... of this research is the development of an efficient parallel implementation via domain decomposition. propagation reservoir characterization simulation heterogeneity numerical simulation algorithm wave propagation wavefield hybrid algorithm anisotropy attenuation small scale heterogeneity domain...

... INTRODUCTION SUMMARY We present a 3D massively parallel frequency-domain fullwaveform tomography algorithm based on a domain decomposition method and a hybrid direct-iterative solver for the wave propagation forward problem. The hybrid solver is used to overcome the memory overburden...

... domain decomposition to divide the spatial axes of the data. Introduction There are many ways to produce a depth image. Starting from narrow azimuth marine data, common azimuth migration (Biondi and Palacharla, 1996) is a cost-effective way to get a good quality, wave equation result. Common...

... equation reservoir characterization decomposition modeling domain decomposition workstation PP 8.7 3D finite difference modeling via domain decomposition Alberto Villarreal* and John A. Scales, Department of Geophysics and Center for Wave Phenomena, Colorado School of Mines, Golden, Colorado 80401...

... ABSTRACT No preview is available for this paper. computational grid reservoir simulation internal boundary upstream oil & gas domain decomposition parallel numerical reservoir simulation numerical reservoir simulation subdomain boundary local grid refinement processor...