نتایج جستجو برای: synthetic seismograms

تعداد نتایج: 141832  

2010
Azure Cloud Vedaprakash Subramanian Liqiang Wang En-Jui Lee

Currently, numerically simulated synthetic seismograms are widely used by seismologists for seismological inferences. The generation of these synthetic seismograms requires large amount of computing resources, and the maintenance of these observed seismograms requires massive storage. Traditional high-performance computing platforms is inefficient to handle these applications because rapid comp...

2014
Po Chen En-Jui Lee Liqiang Wang

Synthetic seismograms generated by solving the seismic wave equation using numerical methods are being widely used in seismology. For fully three-dimensional seismic structure models, the generation of these synthetic seismograms may require large amount of computing resources. Conventional high-performance computer clusters may not provide a cost-effective solution to this type of applications...

Journal: :Geophysical Journal International 1984

Abstract The ray series method may be generalized using a ray centered coordinate system for general 3D-heterogeneous media. This method is useful for Amplitude Versus Offset (AVO) seismic modeling, seismic analysis, interpretational purposes, and comparison with seismic field observations.For each central ray (constant ray parameter), the kinematic (the eikonal) and dynamic ray tracing system ...

2016
Xinming Wu Guillaume Caumon

Well-seismic ties allow rock properties measured at well locations to be compared to seismic data, and therefore are useful for seismic interpretation. Numerous methods have been proposed to compute well-seismic ties by correlating real seismograms with synthetic seismograms computed from velocity and density logs. However, most methods tie multiple wells to seismic data one-by-one, and therefo...

2000
Nozomu Takeuchi Robert J. Geller Phil R. Cummins

Ž . We compute complete including both body and surface waves synthetic seismograms for laterally and vertically Ž . heterogeneous Earth models using the Direct Solution Method DSM . We use the optimally accurate modified operators w derived by Geller and Takeuchi Geller, R.J., Takeuchi, N., 1995. A new method for computing highly accurate DSM x w synthetic seismograms. Geophys. J. Int. 123, 44...

2012
Andrew Muñoz Dave Hale

Seismic data are recorded and commonly interpreted in vertical two-way time; well logs, measured in depth, must be tied to seismic using a time-depth curve. However, well ties contain a large amount of uncertainty due to errors in the generation of synthetic seismograms and manual matching of synthetic seismograms to seismic traces. Using dynamic time warping, a fast algorithm that optimally al...

Journal: :Geophysical Journal International 1986

2002
ROBERT L. NOWACK

In this paper, an overview of the calculation of synthetic seismograms using the Gaussian beam method is presented accompanied by some representative applications and new extensions of the method. Since caustics are a frequent occurrence in seismic wave propagation, modifications to ray theory are often necessary. In the Gaussian beam method, a summation of paraxial Gaussian beams is used to de...

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