Abstract: This invention is for a method for transforming a seismic trace into a compressed domain. The seismic source wavelet is transformed into a zero degree phase wavelet and a shifted 90 degree phase wavelet, and the two wavelets span a 2-dimensional sub-space. A dictionary is created by collecting the wavelets in the sub-space. In practice this dictionary is usually combined with conventional existing wavelet dictionaries. The seismic trace is projected onto the dictionary (sub-space alone or combined) to find the best matching projection, with a residual determined after each projection, wherein the sum of the residuals determines the fidelity of the data compression.
Type:
Grant
Filed:
March 25, 2014
Date of Patent:
March 17, 2015
Assignee:
Total E&P Research & Technology USA, Inc.
Inventors:
Qingqing Liao, Fuchun Gao, Christian Rivera
Abstract: This invention is for a method for transforming a seismic trace into a compressed domain. The seismic source wavelet is transformed into a zero degree phase wavelet and a shifted 90 degree phase wavelet, and the two wavelets span a 2-dimensional sub-space. A dictionary is created by collecting the wavelets in the sub-space. In practice this dictionary is usually combined with conventional existing wavelet dictionaries. The seismic trace is projected onto the dictionary (sub-space alone or combined) to find the best matching projection, with a residual determined after each projection, wherein the sum of the residuals determines the fidelity of the data compression.
Type:
Application
Filed:
March 25, 2014
Publication date:
October 2, 2014
Applicant:
TOTAL E&P RESEARCH & TECHNOLOGY USA, INC.
Inventors:
Qingqing Liao, Fuchun Gao, Christian Rivera