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http://dx.doi.org/10.7582/GGE.2013.16.4.225

Automatic Velocity Analysis by using an High-resolution Bootstrapped Differential Semblance Method  

Choi, Hyungwook (Dept. of Natural Resources and Geoenvironmental Engineering, Hanyang Univ.)
Byun, Joongmoo (Dept. of Natural Resources and Geoenvironmental Engineering, Hanyang Univ.)
Publication Information
Geophysics and Geophysical Exploration / v.16, no.4, 2013 , pp. 225-233 More about this Journal
Abstract
The accuracy of the automatic NMO velocity analysis, which is used for an effective and objective NMO velocity analysis, is highly affected by the velocity resolution of the velocity spectrum. In this study, we have developed an automatic NMO velocity algorithm, where the velocity spectra are created using high-resolution bootstrapped differential semblance (BDS), and the velocity analysis on CMP gathers is performed in parallel with MPI. We also compared the velocity models from the developed automatic NMO velocity algorithm with high-resolution BDS to those from BDS. To verify the developed automatic velocity analysis module we created synthetic seismic data from a velocity model including horizon layers. We confirmed that the developed automatic velocity analysis module estimated velocity more accurately. In addition, NMO velocity which yielded a CMP stacked section, where the coherency of the events were improved, was estimated when the developed module was applied to a marine field data set.
Keywords
automatic NMO velocity analysis; high-resolution BDS; NMO velocity analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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