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Article
Suppression of seismic surface waves based on adaptive weighted super-virtual interferometry
For land seismic surveys, the surface waves are the dominant noises that mask the effective signals on seismograms. The conventional methods isolate surface waves from the effective signals by the differences ...
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Article
Optimization of a precise integration method for seismic modeling based on graphic processing unit
General purpose graphic processing unit (GPU) calculation technology is gradually widely used in various fields. Its mode of single instruction, multiple threads is capable of seismic numerical simulation whic...
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Article
Modeling seismic wave propagation within complex structures
Seismic modeling is a useful tool for studying the propagation of seismic waves within complex structures. However, traditional methods of seismic simulation cannot meet the needs for studying seismic wavefiel...
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Article
An approximation to the P-wave reflection coefficient for amplitude variation with long-offset seismic data
In recent years, long-offset exploration has been widely used, especially on marine seismic surveys. Conventional AVO analysis is insufficient for long-offset seismic data. To widen the application range of AV...
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Article
Improving signal to noise ratio of seismic profiles using an image processing technique
This paper introduces an image processing technique into seismic data processing as a noise attenuation technology. The image separation of the seismic profile is obtained by using grating operators based on d...
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Article
A meshless method for acoustic and elastic modeling
Wave equation method is one of the fundamental techniques for seismic modeling and imaging. In this paper the element-free-method (EFM) was used to solve acoustic and elastic equations. The key point of this m...
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Article
The precise finite difference method for seismic modeling
3-D seismic modeling can be used to study the propagation of seismic wave exactly and it is also a tool of 3-D seismic data processing and interpretation. In this paper the arbitrary difference and precise int...
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Article
Study and practice of wide-angle seismic data processing
This paper presents the special processing methods used for wide-angle land seismic data through both theoretical study and model testing. They are different from conventional ones in the following aspects: se...
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Article
Beamforming with the generalized sidelobe canceller for coherent noise attenuation in 3D seismic data
This paper presents a new approach for attenuating coherent noise in 3D seismic data. An adaptive beamforming with generalized sidelobe canceller (GSC) design methodology is utilized here as a general form of ...
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Article
Propagation of seismic waves in a viscoelastic medium and the effect of topography
In this paper we have simulated the propagation of seismic waves in viscoelastic medium and calculated the effect of irregular surface topography by using finite element method. Several types of elastic and vi...