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冀东滩海南堡2号构造复杂油气储层叠前地震描述技术及效果 被引量:3

Prestack seismic description technique of complex oil/gas reservoir in Nanpu No.2 structure of beach in eastern part of Hebei
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摘要 为了提高复杂油气区储层和流体预测的精度,本文针对冀东南堡凹陷滩海2号构造馆陶组—东一段复杂油气储层,以单块三维2ms海底电缆地震资料为基础,进行了OBC处理、叠前地震资料的三高处理、测井资料的岩石物理模拟、AVO正演、同时弹性参数反演等方面的一体化应用。确定了本区的岩性流体敏感弹性参数;证实了馆陶组底部玄武岩对下伏地层地震波传播的屏蔽作用,玄武岩顶面随着入射角的增加,其反射系数呈微弱降低的变化规律;主要含油储层的AVO特征;通过AVO正演与实际地震资料的分析,明确了主要目的层段东一段最大入射角为31°;经同时反演及对同时反演所得到的储层和流体敏感弹性参数的解释,落实了8个有利砂体的分布,并提供了两口钻探井位。 In order to improve the precision of reservoir and fluid prediction in complex oil/gas areas and in accordance with Ng-Ed1 complex oil/gas reservoir in No.2 structure of Nanpu sag in beach of eastern part of Hebei,based on a block of 3-D ocean-bottom cable seismic data with 2ms sampling,the paper carried out integrative application of OBC processing,'three-high' (high precision,high resolution and hi-fi) processing of prestack seismic data,rock physics simulation of logging data,AVO forward modeling and inv...
出处 《石油地球物理勘探》 EI CSCD 北大核心 2008年第1期59-68,4+3+130,共13页 Oil Geophysical Prospecting
关键词 储层描述 OBC 地震资料三高处理 岩石物理模拟 AVO正演 弹性参数反演 综合评价 reservoir description OBC three-high processing of seismic data simulation of rock physics inversion of elastic parameters integrative appreciation
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