Random noise suppression method and apparatus for seismic data

The invention relates to the seismic exploration field, especially to a random noise suppression method and apparatus for seismic data. The method comprises: complementary ensemble empirical mode decomposition (CEEMD) is carried out on seismic data to obtain an intrinsic mode function (IMF) componen...

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Bibliographic Details
Main Authors DONG LIEQIAN, ZHANG MUGANG, ZHANG KUI, ZENG XIANLONG, JIANG LIANBIN
Format Patent
LanguageChinese
English
Published 22.06.2016
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:The invention relates to the seismic exploration field, especially to a random noise suppression method and apparatus for seismic data. The method comprises: complementary ensemble empirical mode decomposition (CEEMD) is carried out on seismic data to obtain an intrinsic mode function (IMF) component sequence, and according to an interrelation between seismic data and IMF components, IMF components including random noises and IMF components not including random noises are determined; on the basis of differences of the random noises included by the IMF components including random noises, different threshold values are selected for the IMF components including random noises to carry out optimal curvelet iteration threshold de-noising processing, thereby obtaining the processed IMF components; and then seismic data after noise removing are obtained by reconstruction. According to the method provided by the embodiment of the application, on the basis of combination of the CEEMD and the optimal curvelet iteration
Bibliography:Application Number: CN20161168367