| 叠前时间偏移的偏移孔径与采集孔径关系分析 |
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| 引用本文： | 刘文霞,王艳华,王媛,王江.叠前时间偏移的偏移孔径与采集孔径关系分析[J].海相油气地质,2011,16(4):66-70. |
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| 作者姓名： | 刘文霞 王艳华 王媛 王江 |
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| 作者单位： | 1. 中国石油辽河油田分公司勘探开发研究院
2. 中国石油大庆油田勘探开发研究院 |
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| 摘 要： | 叠前时间偏移是复杂构造成像有效的偏移方法之一,它能适应纵横向速度变化较大、倾角较大的偏移成像.影响偏移成像效果的主要因素是偏移孔径和偏移速度.偏移孔径过小,偏移剖面将损失陡倾角的同相轴；偏移孔径过大,会降低资料的偏移质量.虽然偏移孔径同野外采集孔径是完全不同的概念,但偏移孔径是受采集孔径约束的,采集孔径不够时,给再大的...
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| 关 键 词： | 地震数据处理 叠前时间偏移 采集孔径 偏移孔径 数据成像质量 |
Analysis on the Relationship between Prestack Time Migration Aperture and Acquisition Aperture |
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| Liu Wenxia,Wang Yanhua,Wang Yuan,Wang Jiang.Analysis on the Relationship between Prestack Time Migration Aperture and Acquisition Aperture[J].Marine Origin Petroleum Geology,2011,16(4):66-70. |
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| Authors: | Liu Wenxia Wang Yanhua Wang Yuan Wang Jiang |
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| Institution: | Liu Wenxia,Wang Yanhua,Wang Yuan,Wang Jiang |
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| Abstract: | Prestack time migration is one of effective migration method for a complex structure imaging,which can adapt to the imaging of steep dip angle and the large changes in vertical and horizontal velocity.The offset aperture and migration velocity are critical to imaging.If migration aperture is over small,the offset profile will loss the common phase axis of steep dip.If migration aperture is over big,it will reduce the quality of migration data.Though the concept of migration aperture is completely different ... |
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| Keywords: | Seismic data processing Prestack time migration Acquisition aperture Migration aperture Data image quality |
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