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《Journal of Chengdu University of Technology(Science & Technology Edition)》 2004-06
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Mathematical geophones with applications to seismic prestacking forward modeling

HE Zhen-hua, HU Guang-min, HUANG De-ji (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, China)  
Nonzero offset or prestacking seismic forward modeling (SFM) usually performed by ray tracing and full-wave equation techniques plays an important role in prestacking seismic data processing and interpretation. This paper introduces a concept of mathematical geophone (MG) . Based on it, a new kind of nonzero offset SFMs with high calculating efficiency can be easily developed by using one-way wave equation. The paper gives an example of 8 common shot seismic gathers for a complex geological model by using one-way wave equation techniques. The results show that the reflections and diffrations in those seimic gathers are quite clear. It is also important that high S/N ratio SFM records without any multiple waves, direct waves and other false events can be obtained by the new methods.
【Fund】: 国家自然科学基金资助项目(40174039)
【CateGory Index】: P631.43
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