[an error occurred while processing this directive] Global Geology 2021, 24(2) 119-128 DOI:     ISSN: 1673-9736 CN: 22-1371/P
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PubMed
Article by Han F
Article by Yi X
Article by Sun Z
Article by Hu J
Article by Xu BAXH
 
 
 
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 Application of Gaussian beam pre-stack depth
migration in rugged seabed
 HAN Fuxing，YI Xin，SUN Zhangqing，HU Jia，XU Baoyin and XU Hai
 1． College for Geo-Exploration Science Technology，Jilin University，Changchun 130026，China;
2． Geophysical Exploration and Ｒesearch Institute of Jilin Oilfield，Songyuan 138006，Jilin，China;
3． Overseas Center of Sinopec Petroleum Exploration and Development Ｒesearch Institute，Beijing 100083，China
Abstract:  Strong fluctuation of seabed，abrupt variation in depth and dip of seabed bring seismic imaging problems，such as irregular reflection waves，obvious multiple waves，serious lateral wave development，poor imaging on base surface and depression structure，low signal-to-noise ratio of middle and deep layers． In this paper，Gaussian beam migration imaging method is used to analyze the imaging effect of rugged seabed in deep water area，and the ray tracing method of wavefront construction method is used to analyze the kinematic characteristics of seismic waves． By improving the design of seismic data acquisition and observation system，imaging quality of fine structures is improved．
Keywords:  Gaussian beam migration   wavefront construction method   Gaussian beam   pre-stack depth   rugged
seabed
  
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