Interpolation of near offset using surface-related multiples
Guo Shu-Juan1, Li Zhen-Chun1, Tong Zhao-Qi1, Ma Fang-Zheng2, and Liu Jian-Hui3
1. College of Geo-resources and Information, China University of Petroleum (East China), Qingdao 266555, China.
2. Geophysical Research Institute of SINOPEC Shengli Oilfield, Dongying 257061, China.
3. Research Institute of Exploration and Development, Tianjin Branch of CNOOC Ltd.,Tianjin,300452, China.
Abstract In this research, we present a seismic trace interpolation method which uses seismic data with surface-related multiples. It is different from conventional seismic data interpolation using information transformation or extrapolation of adjacent channels for reconstruction of missing seismic data. In this method there are two steps, first, we construct pseudo-primaries by cross-correlation of surface multiple data to extract the missing nearoffset information in multiples, which are not displayed in the acquired seismic record.Second, we correct the pseudo-primaries by applying a Least-squares Matching Filter (LMF) and RMS amplitude correction method in time and space sliding windows. Then the corrected pseudo-primaries can be used to fill the data gaps. The method is easy to implement, without the need to separate multiples and primaries. It extracts the seismic information contained by multiples for filling missing traces. The method is suitable for seismic data with surfacerelated multiples.
This project is sponsored by: the National Basic Research Program of China (973 Program) (2007CB209605), the National Natural Science Foundation of China (40974073), and the National Hi-tech Research and Development Program of China (863 Program) (2009AA06Z206).
About author: See biography and photo in the Applied Geophysics June 2008 issue, P. 120.
Cite this article:
GUO Shu-Juan,LI Zhen-Chun,TONG Zhao-Qi et al. Interpolation of near offset using surface-related multiples[J]. APPLIED GEOPHYSICS, 2011, 8(3): 225-232.
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