Method for determining impedance coefficients of a seismic trace
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United States of America Patent
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Apr 14, 2009
Grant Date -
Apr 24, 2008
app pub date -
Oct 20, 2006
filing date -
Oct 20, 2006
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Abstract
A method for determining impedance coefficients of a seismic trace comprises determining reflection coefficients of the seismic trace, for example using a sparse spike inversion, integrating the reflection coefficients with respect to time to obtain impedance coefficients, and filtering the impedance coefficients by applying a low-cut window filter. The window size and/or shape may be defined by a variable parameter which may be either specified by a user or optimized on the basis of a lateral variability parameter calculated for different values of the window parameter.
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