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| The application of seismic instantaneous attributes based on EEMD in glutenite |
| XIE Xing-Long1, SUN Sheng1, WANG Yan-Chun2, REN Zheng-Wei1, LI Jing-Jing2 |
1. Center for Hydrogeology and Environmental Geology Survey, CGS, Baoding 071051, China;
2. China University of Geosciences, Geophysics and Information Technology Institute, Beijing 100083, China |
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Abstract As an improved algorithm of empirical mode decomposition (EMD), ensemble empirical mode decomposition (EEMD) can suppress the mode mixing effect existing in EMD and restrain interfering noise in available signal. The improvement effect and anti-jam capability were proved through theoretical tests in this paper. The seismic data from a block in eastern China was decomposed by using EEMD, and the result contained intrinsic mode functions (IMF) with different frequencies, the IMF most sensitive to glutenite was found combined with geological conditions, and the instantaneous attributes of the IMF were calculated by using Hilbert transform. A comparison of the instantaneous frequency of the IMF with that of the raw data shows that the former is more sensitive to fluid interface than the latter.
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Received: 24 September 2013
Published: 10 August 2014
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