Seismic attribute extraction based on HHT and its application in a marine carbonate area
Huang Ya-Ping1, Geng Jian-Hua1, Zhong Guang-Fa1, Guo Tong-Lou2, Pu Yong2, Ding Kong-Yun1, and Ma Ji-Qiang1
1. State Key Laboratory of Marine Geology, School of Ocean and Earth Science, Tongji University, Shanghai 200092, China.
2. Exploration Southern Company of China Petroleum and Chemical Corporation, Chengdu 610041, China.
Abstract The Hilbert-Huang transform (HHT) is a new analysis method suitable for nonlinear and non-stationary signals. It is very appropriate to seismic signals because they show both non-stationary and nonlinear characteristics. We first introduce the realization of HHT empirical mode decomposition (EMD) and then comparatively analyze three instantaneous frequency algorithms based on intrinsic mode functions (IMF) resulting from EMD, of which one uses the average instantaneous frequency of two sample intervals having higher resolution which can determine that the signal frequency components change with time. The method is used with 3-D poststack migrated seismic data of marine carbonate strata in southern China to effectively extract the three instantaneous attributes. The instantaneous phase attributes of the second intrinsic mode functions (IMF2) better describe the reef facies of the platform margin and the IMF2 instantaneous frequency attribute has better zoning.Combining analysis of the three IMF2 instantaneous seismic attributes and drilling data can identify the distribution of sedimentary facies well.
This work is supported by the National 863 Program (Grant No. 2008AA093001).
About author: Huang Ya-Ping: See biography and photo in the Applied Geophysics December 2009 issue, P. 366.
Cite this article:
HUANG Ya-Ping,GENG Jian-Hua,ZHONG Guang-Fa et al. Seismic attribute extraction based on HHT and its application in a marine carbonate area[J]. APPLIED GEOPHYSICS, 2011, 8(2): 125-133.
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