2016, 35(4) 1109-1118 DOI:     ISSN: 1004-5589 CN: 22-1111/P

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Keywords
OBC
internal multiple
interferometry reconstruction
virtual shot record
CFP
Authors
FENG Fei
CHENG Yao
JIAO Xu-Ming
CHENG Hao
WANG De-Li
PubMed
Article by Feng, F.
Article by Cheng, Y.
Article by Jiao, X. M.
Article by Cheng, H.
Article by Wang, D. L.

Interferometry wave-field reconstruction method in internal multiples elimination of OBC data

FENG Fei, CHENG Yao, JIAO Xu-Ming, CHENG Hao, WANG De-Li

1. Geophysical ��esearch Institute of GEO-COSL��China Oilfield Services Limited��Tianjin 300451��China; 2. College of Geo-Exploration Science and Technology��Jilin University��Changchun 130026��China

Abstract��

The conventional internal multiples elimination method can not be applied in the OBC data because receivers are at the bottom while the sources are at the surface of the sea��which makes the practical marine seismic data processing face with great challenge�� In this paper��we get the virtual shot records with the virtual source and receivers at the bottom of the sea by reconstructing the OBC data��using seismic interferometry�� The results are the same as conventional seismic data with the source and receivers at surface��which can convert the internal multiples of the OBC data to conventional surface-related multiples and internal multiples�� Comparing with the results of CFP method��we can conclude that the seismic interferometry wave-filed reconstruction method can be applied well in in- ternal multiples elimination of OBC data��

Keywords�� OBC   internal multiple   interferometry reconstruction   virtual shot record   CFP  
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