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《Oil Geophysical Prospecting》 2010-01
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3D PP-PS joint inversion method and application in anisotropic medium

Li Lu-ming1,2,Luo Xing-xian1,2,Wang Ming-chun1,2,Kong Xuan-lin1,2 and Zhou Huai-lai1,2.1.State Key Lab of Reservoir Geology and Development Engineering,Chengdu University of Technology,Chengdu City,Sichuan Province,610059,China2.Education Ministry Key Lab of Earth Prospecting and Information Technology,Chengdu University of Technology,Chengdu City,Sichuan Province,610059,China  
In order to raise precision in reservoir prediction,3D3C seismic data and previous processing results were used,based on elastic wave propagation theory in anisotropic medium,multi-wave accurate amplitude characteristic equation (Amplitude Versus Angle) was studied,as a result the PP-PS joint pre-stack lithology inversion method for 3D anisotropic medium was developed.The NMO gathers were used in this method,5 lithologic parameters were jointly solved in one equation so that 5 inversion parameters were obtained at the same time.In order to keep the independence of the inversion parameters,P wave velocity,Share wave velocity,density,and 2 other anisotropic parameters of the formation can be directly inverted,then 13 lithologic and elastic parameters including elastic parameter,elastic impedance,elastic impedance gradient and so on were calculated and were used to identify and describe the lithology and fluid.The PP-PS joint pre-stack inversion method can improve the reliability and accuracy of the inversion,3D multi-wave seismic data processing of the field data proved the suitability of the method.
【Fund】: 高等学校博士学科专项科研基金(20070616004);; 中国石油天然气集团公司物探重点实验室开放基金(GPKLl0803);; 国家863项目(2007AA060505)联合资助
【CateGory Index】: P631.4
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【Citations】
Chinese Journal Full-text Database 8 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 LI Lu ming, LUO Sheng xian (Chengdu University of Technology, China);VARIABLE RANGE 3 D PRESTACK DEPTH MIGRATION BY PHASE SHIFT PLUS CORRECTION[J];JOURNAL OF CHENGDU UNIVERSITY OF TECHNOLOGY;1999-04
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3 LI Lu-ming, LUO Sheng-xian ( State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, China );Method for building wave equation migration velocity model in depth domain and its application[J];Journal of Chengdu University of Technology(Science & Technology Edition);2004-06
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【Secondary Citations】
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