Abstract
Abstract Virtual resolution enhancement (VRE) is a new poststack cosmetic tool that can be applied to different types of seismic data. VRE emphasizes major reflections, enhances temporal resolution of seismic events, and suppresses reverberation noise, leading to better visualization of the entire seismic data. VRE is based on simple mathematical rule, and its parameters can be tweaked to suite the vast variety of seismic data available today. Although VRE does not reveal new or hidden features on seismic section, it significantly enhances the existing ones, which improves the interpretation and assists automatic horizon picking process. The only disadvantage of VRE is the long computational time. However, given the giant advances in the computational power and speed expected in the near future, this problem should be negligible. Tests conducted on seismic sections, collected from different regions in the world and went through different data acquisition and processing routines, prove the effectiveness of the VRE procedure.
Highlights
In a perfect world, a seismic source should produce a zero-phase spike-like seismic wave that travels through the subsurface and bounces back, unchanged, to a receiver that senses and sends only primary reflections to a seismic recorder capable of storing the exact received signal
This study introduces a new powerful processing tool to enhance the visualization of seismic data
Virtual resolution enhancement (VRE) enhances the temporal resolution of reflection and smooths away the distortions of seismic wavelets
Summary
A seismic source should produce a zero-phase spike-like seismic wave that travels through the subsurface and bounces back, unchanged, to a receiver that senses and sends only primary reflections to a seismic recorder capable of storing the exact received signal. Source and receiver coupling in land seismic survey is an additional problematic factor in this issue Another reason of the signal smearing is that the earth is not a perfectly elastic medium, which is another reason for natural distortion of seismic signal as it travels through the earth. The process is based on a simple mathematical rule and does not alter neither the true amplitude nor the phase of major reflections
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