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| Keywords | |
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wave field exploration |
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Green function |
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multiples |
| Authors | |
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SUN Hai-Long |
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WANG De-Li |
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CHEN Xin |
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WANG Tong |
| PubMed | |
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Article by Sun, H. L. |
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Article by Wang, D. L. |
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Article by Chen, X. |
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Article by Wang, T. |
Method of wave field extrapolation and its improvement to remove multiples
SUN Hai-Long, WANG De-Li, CHEN Xin, WANG Tong
College of Geo- exploration Science and Technology��Jilin University��Changchun 130026��China
Suppression of water multiples is an important factor in the process of seismic exploration�� To sup- press water multiples��this paper first realizes the basic field forward extrapolation method for removing multiples in the case of gradient model and achieves good multiples removal efficiency�� Then��on the basis of forward extrapola- tion��we realize inversed and forward wave field exploration method in the case of bending bottom�� Comparing the results of the two field extrapolation of suppressing water multiples��we find that this reversed wave field extrapola- tion can overcome the interference of the complex underwater conditions when obtaining the green function��and obtain more preferable effect of multiples elimination in the case of complex underwater medium��