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《Progress in Geophysics》 2012-06
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The review of the wave field separation method about reflection and diffraction based on the PWD

HUANG Jian-ping,LI Zhen-chun,KONG Xue,GUO Qiang,YAN Jun (School of Geoscience of China University of Petroleum(East China),Qingdao 266555,China)  
he imaging method on the diffraction wave field is an effective way to identify the subsurface small scale geological discontinuities such as faults,fractures,coarse rock boundary and watercourse,thus the separation about the diffraction and reflection from the original wave field plays an important part in the high resolution imaging.In recent years,the methods on the diffraction extraction and image are gradually becoming the research focus.In this paper,we systematically review the development history of the separation and imaging method about the diffraction wave field,analyze the characteristics of the reflection and diffraction wave field,and then mainly provide the recommended flowchart of applying PWD to separate and image diffraction wave field on both post-stack and pre-stack record,as well as some application prospects of PWD in future.
【Fund】: 国家973项目(2011CB202402);; 国家自然科学基金(41104069 41274124)项目;; 山东省自然科学基金(ZR2011DQ016)联合资助
【CateGory Index】: P631.4
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