| 双程声波方程叠前逆时深度偏移的成像条件 |
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| 引用本文： | 何兵寿,张会星,魏修成,陈美年.双程声波方程叠前逆时深度偏移的成像条件[J].石油地球物理勘探,2010,45(2):243. |
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| 作者姓名： | 何兵寿 张会星 魏修成 陈美年 |
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| 作者单位： | 中国海洋大学海底科学与探测技术教育部重点实验室;中国石化石油勘探开发研究院; |
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| 基金项目： | 国家自然科学基金项目(40804021); 国家自然科学重点基金项目(40839901); 973项目(2009CB219603)联合资助 |
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| 摘 要： | 成像条件是决定波动方程叠前逆时深度偏移效果的重要因素之一。本文从构造成像角度研究了不同的成像条件计算方法在双程声波方程叠前逆时深度偏移中的应用效果。模型试验表明，不论采用何种成像条件，基于双程波方程的叠前逆时深度偏移均会产生较强的层间反射，该反射会恶化浅层成像结果。应用波场归一化互相关成像条件时，层间反射的影响相对较弱；基于波场互相关的逆时偏移成像条件对深部构造的成像能力总体上优于求解程函方程得到的成像条件；而归一化互相关成像条件能够在对地震波进行偏移成像的同时补偿深层能量，在相同条件下，它对深部地层的成像能力更强。
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| 关 键 词： | 声波方程 逆时偏移 有限差分 成像条件 |
Imaging conditions for two-way acoustic wave equation pre-stack reverse-time depth migration |
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| He Bing-shou,Zhang Hui-xing,Wei Xiu-cheng , Chen Mei-nian. . Ministry of Education Key Lab of Submarine Geosciences , Prospecting Techniques,Ocean University of China,Qingdao City,Sh,ong Province,China. Research Institute of Petroleum Exploration & Development,Sinopec,Beijing City,China.Imaging conditions for two-way acoustic wave equation pre-stack reverse-time depth migration[J].Oil Geophysical Prospecting,2010,45(2):243. |
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| Authors: | He Bing-shou Zhang Hui-xing Wei Xiu-cheng Chen Mei-nian Ministry of Education Key Lab of Submarine Geosciences Prospecting Techniques Ocean University of China Qingdao City Sh ong Province China Research Institute of Petroleum Exploration & Development Sinopec Beijing City China |
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| Affiliation: | He Bing-shou1,Zhang Hui-xing1,Wei Xiu-cheng2 and Chen Mei-nian1. 1. Ministry of Education Key Lab of Submarine Geosciences and Prospecting Techniques,Ocean University of China,Qingdao City,Shandong Province,266100,China2. Research Institute of Petroleum Exploration & Development,Sinopec,Beijing City,100083,China |
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| Abstract: | Imaging condition is one of the important factors which affect the performance and effects of wave equation pre-stack reverse-time depth migration. From the point of view in structure imaging, the application effects which the different imaging condition calculation algorithms applied to the two-way acoustic wave equation pre-stack reverse-time depth migration were studied in this paper. The modeling tests show that for any given imaging conditions, the strong interlayer reflection will be generated for two... |
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| Keywords: | acoustic wave equation reverse-time migration finite difference imaging condition |
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