Seismic attributes for reservoir localization
AssigneeSpectraseis AG
InventorErik Hans Saenger
Life of this patent
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Abstract
A method and system for processing three component seismic data includes determining a covariance data matrix from three component seismic data for each of a plurality of time periods to obtain eigenvectors and eigenvalues. One or more seismic attributes are calculated from the eigenvectors and eigenvalues for each of a plurality of time periods. A stability measure is determined from the calculated seismic attribute for each of the plurality of time periods and stored for display.
Claims20
A method of processing three component seismic data, comprising:
- a) determining a covariance data matrix from three component seismic data for each of a plurality of time periods to obtain eigenvectors and eigenvalues;
- b) calculating, from the eigenvectors and eigenvalues, a seismic attribute for each of the plurality of time periods;
- c) determining a stability measure from the calculated seismic attribute for each of the plurality of time periods;
- and
- d) storing the stability measure in a form for display.
A set of application program interfaces embodied on a computer readable medium for execution on a processor in conjunction with an application program for determining a stability measure for three-component seismic data, (the presence of subsurface hydrocarbons) comprising:
- a first interface that receives a three component seismic data time series for input to a covariance matrix;
- a second interface that receives eigenvalues and eigenvectors from the covariance matrix for each of a plurality of time periods from the three component seismic data;
- and
- a third interface that receives a stability measure determined from a seismic attribute determined from the eigenvalues and eigenvectors.
An information handling system for determining a stability measure indicating the presence of subsurface hydrocarbons:
- a) a processor configured to determine a stability measure from seismic attributes based on eigenvectors and eigenvalues from a plurality of covariance matrices of three component seismic data, wherein the seismic data are divided into a plurality of time periods;
- and
- b) a computer readable medium storing the determined stability measure indicating the presence of subsurface hydrocarbons.
Dependencies are inferred from the claim text.