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Short‐period static correction without Normal Move Out †
Author(s) -
Masjukov Andrey V.,
Murzov Igor S.
Publication year - 2013
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.2012.01050.x
Subject(s) - statics , residual , midpoint , stacking , robustness (evolution) , algorithm , flowchart , regional geology , computer science , environmental geology , geodesy , geology , mathematics , geometry , telmatology , hydrogeology , biochemistry , chemistry , physics , classical mechanics , nuclear magnetic resonance , gene , programming language , geotechnical engineering
Static correction is a common step in a seismic data proccessing flowchart for land data. Here we propose a new algorithm for automatic short‐period static correction. The algorithm is based on the assumption that seismic events after short‐period static correction should be locally plane nearly everywhere. No other assumptions are made. Therefore the proposed method does not require a preliminary velocity analysis. The algorithm consists in two main parts: evaluation of second spatial differences of trajectories and subsequent regularized integration of these differences. The proposed method proves its robustness and shows results comparable with conventional residual static correction based on improving common‐midpoint stacking. In contrast to the conventional residual static, the proposed algorithm can estimate short‐period statics in complex cases where common‐midpoint stacking fails because of non‐hyperbolic events.