Seismic attributes optimization based on the empiri-cal mode decomposition
Chen Wei1,2, Wang Shangxu1,2, Chuai Xiaoyu1,2
1. Institute of Geophysics and Information Engineering,China University of Petroleum(Beijing),Beijing 102249,China;
2. State Key Laboratory of Petroleum Resource and Prospecting,China University of Petroleum(Beijing),Beijing 102249,China
Abstract：This paper proposes a new attribute optimiza-tion method based on empirical mode decomposi-tion. Firstly we decompose every kind of seismicattributes by the empirical mode decomposition andobtain some intrinsic mode functions.Then wenormalize the weight coefficients of the top threecomponents and multiply the three attribute valueby the normalized weight coefficient and get the at-tribute components.Finally，we add the attributecomponents together.The empirical mode decom-position method and the principal component anal-ysis method are applied in the same actual data.The result shows that the empirical mode decom-position method can obtain more information of theoriginal attributes with less principal components(intrinsic mode functions)，and improve the reso-lution of the original attribute section. This couldbe very helpful for fluid identification when attrib-ute values change dramatically.
