Method for Seismic Trace Decomposition and Reconstruction Using Multiple Wavelets

摘要

The present invention has established a method for decomposing a seismic trace, which can be a pre-stack or post-stack seismic trace, into a set of seismic wavelets of different shapes and for reconstructing a new seismic trace by a subset of the wavelets and the original seismic trace by all the wavelets in the set of the wavelets. The seismic trace can be decomposed into a set of pre-defined seismic wavelets of different shapes. The wavelets from the decomposition are saved to a computer device such as a hard disk drive. A new seismic trace is reconstructed by a selected subset of the set of wavelets. The original seismic trace is reconstructed accurately with all the wavelets in the set of wavelets. For a 2D seismic section or a 3D seismic volume, the decomposition of the section or volume will generate a computer file of sets of the wavelets. Each set of wavelets in the file corresponds to a seismic data trace. New seismic sections or volumes can be generated by reconstruction of the seismic traces with certain subsets of the seismic wavelets.