| 正演模拟技术在深水地震采集设计中的应用 |
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| 引用本文： | 但志伟,李三福,刘杰明. 正演模拟技术在深水地震采集设计中的应用[J]. 工程地球物理学报, 2011, 8(2): 149-154. DOI: 10.3969/j.issn.1672-7940.2011.02.004 |
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| 作者姓名： | 但志伟 李三福 刘杰明 |
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| 作者单位： | 中海油能源发展股份有限公司钻采院工程研究院,地球物理研究所,广东,湛江,524057 |
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| 摘 要： | 基于深水断裂地区的地震偏移剖面建立深水断裂结构地层地震地质模型;基于射线正演模拟及地震波在弹性分界面上的能量分配,计算不同偏移距范围内的覆盖次数及其反射波平均振幅,基于这些参数来确定靶区地震勘探最优采集参数.分析结果表明,靶区深水断面使得射线偏折得严重必须增加排列长度,才能使得断面波能得到较好的偏移成像,同时,指出在复...
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| 关 键 词： | 深水断裂 正演模拟 观测系统 采集参数优化 |
Application of Forward Modeling Technology to Design of Deepwater Seismic Acquisition |
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| Dan Zhiwei,Li Sanfu,Liu Jieming. Application of Forward Modeling Technology to Design of Deepwater Seismic Acquisition[J]. Chinese Journal of Engineering Geophysics, 2011, 8(2): 149-154. DOI: 10.3969/j.issn.1672-7940.2011.02.004 |
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| Authors: | Dan Zhiwei Li Sanfu Liu Jieming |
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| Affiliation: | (CNOOC Energy Development Co.,Ltd.Drilling Institute of Geophysics,Zhanjiang Guangdong 524057,China) |
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| Abstract: | The seismic-geology model is built based on the seismic migration section of fractures in deepwater in this paper.Based on the theory of ray forward modeling and the energy distribution of seismic in the elastic interface,folds of different offset and reflection amplitude are calculated,and then seismic acquisition parameters are selected.The results show that because of fractures in deepwater,the ray is deflected.Therefore,array length must be increased in order to migrate the waves from fractures.At the same time,the work indicates that in complicated fractured area,proper array length and folded numbers are critical for amplitude-preserved image processing. |
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| Keywords: | fractures in deepwater forward modeling seismic observation system acquisition parameters optimization |
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