Differential evolution algorithm-based CRS dip decomposition method

The invention belongs to the field of oil-gas exploration seismic data processing, and specifically relates to a differential evolution algorithm-based CRS dip decomposition method. According to the method, a dip is divided into a plurality of parts through dispersing an emergence angle alpha, a par...

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Bibliographic Details
Main Authors YI ERFAN, SONG YU, SUN XIAODONG, LI ZHENCHUN, JIA YANRUI
Format Patent
LanguageChinese
English
Published 02.04.2019
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:The invention belongs to the field of oil-gas exploration seismic data processing, and specifically relates to a differential evolution algorithm-based CRS dip decomposition method. According to the method, a dip is divided into a plurality of parts through dispersing an emergence angle alpha, a parameter with a highest similarity is obtained for each part on the basis of a differential evolutionalgorithm, and finally the parts are superposed. According to the differential evolution algorithm-based CRS dip decomposition method, in order to solve coherent values of three independent variablesalpha, RNIP and RN, a correlation coefficient for balancing the sizes of the coherent values is used as a target function to search three parameters. An angle parameter range of the whole search spaceis divided into relatively small parts, so that event information which interferes mutually to cause shielding can be recognized. Through combining dip division with a global optimization scheme, complicated subsurface structu
Bibliography:Application Number: CN2019171717