Enhanced Visualization of Geologic Features in 3D Seismic Survey Data Using High Definition Frequency Decomposition (HDFD)

摘要

A method is presented for visually enhancing at least one geological feature in 3D seismic survey data, comprising the steps of:(a) selecting at least one first seismic trace from a 3D seismic survey data set;(b) subdividing said at least one first seismic trace into a plurality of identified characteristic segments;(c) generating at least one first analytical model function for each of said plurality of identified characteristic segments, utilizing at least one adapted wavelet from an existing dictionary;(d) determining a matching characteristic between said at least one first seismic trace and said at least one first analytical model function;(e) optimising said at least one first analytical model function with respect to said matching characteristic;(f) repeating steps (d) and (e) until a predetermined condition is met, and(g) generating a model dataset from said optimised at least one first analytical model function for at least part of said at least one first seismic trace for visual representation.