| 利用零井源距VSP资料进行品质因子反演 |
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| 引用本文： | 张大伟,孙赞东,王学军,邹雯,冯晓燕,路遥.利用零井源距VSP资料进行品质因子反演[J].石油地球物理勘探,2011(Z1). |
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| 作者姓名： | 张大伟 孙赞东 王学军 邹雯 冯晓燕 路遥 |
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| 作者单位： | 中国石油大学(北京)地质地球物理综合研究中心;东方地球物理公司研究院;中国石油大学(北京)油气资源与探测国家重点实验室;东方地球物理公司物探职业教育学校;长江大学地球科学学院; |
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| 基金项目： | 国家重点基础研究发展规划973项目(2011CB201103)“中国西部叠合盆地深部有效碳酸盐岩储层形成机制与分布预测”; 国家油气重大专项(2011ZX05004003)“海相碳酸盐岩储层地震描述与油气藏有效预测技术研究”资助 |
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| 摘 要： | 品质因子Q值是描述地震波衰减的一个重要物理参数,它描述了介质非完全弹性特征,是地层内部本质特征,所以研究和估算Q值在地震勘探中的作用越来越重要。谱比法和质心频移法是现在常用的两种方法。本文详细介绍了两种方法的原理并用无噪声理论模型验证了两种方法的可行性。反演结果显示在无噪声的条件下两种方法都能很好地估算介质的品质因子。通过对含有不同强度噪声的理论数据、全波场理论数据和实际零井源距VSP数据的处理,对两种方法进行了比较。结果表明,质心频移法反演的结果比谱比法更精确、更可信。
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| 关 键 词： | 品质因子 VSP 质心频移法 谱比法 |
Q-factor inversion and calculation using zero-offset VSP data |
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| Zhang Da-wei,Sun Zan-dong, Wang Xue-jun,Zou Wen,Feng Xiao-yan,Lu Yao..Lab for Integration of Geology , Geophysics,China University of Petroleum,Beijing,China.Geophysical Research Institute,BGP Inc.,CNPC,Zhuozhou,Hebei,China.State Key Laboratory of Petroleum Resource , Prospecting,China.Petroleum Geophysical Exploration School,China.School of Geosciences,Yangtze Univevsity,Ji....Q-factor inversion and calculation using zero-offset VSP data[J].Oil Geophysical Prospecting,2011(Z1). |
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| Authors: | Zhang Da-wei Sun Zan-dong Wang Xue-jun Zou Wen Feng Xiao-yan Lu YaoLab for Integration of Geology Geophysics China University of Petroleum Beijing ChinaGeophysical Research Institute BGP Inc CNPC Zhuozhou Hebei ChinaState Key Laboratory of Petroleum Resource Prospecting ChinaPetroleum Geophysical Exploration School ChinaSchool of Geosciences Yangtze Univevsity Ji |
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| Affiliation: | Zhang Da-wei1,2,Sun Zan-dong1,3 and Wang Xue-jun2,Zou Wen2,Feng Xiao-yan4,Lu Yao5.1.Lab for Integration of Geology and Geophysics,China University of Petroleum(Beijing),Beijing,102249,China2.Geophysical Research Institute,BGP Inc.,CNPC,Zhuozhou,Hebei,072751,China3.State Key Laboratory of Petroleum Resource and Prospecting,China4.Petroleum Geophysical Exploration School,China5.School of Geosciences,Yangtze Univevsity,Ji... |
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| Abstract: | Q-factor,which describes the seismic attenuation and the viscoelasticity of the formation,is an important physical parameter depicting seismic wave propagation.Therefore,Q-factor plays a significant role in high resolution seismic prospecting.Spectral ratio method(SRM) and centroid frequency shift(CFS) method are the most popular.In this paper,the concepts of the two methods are introduced first.Then the feasibility is tested by synthetic data.The inversion results show that both the two methods perform wel... |
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| Keywords: | Q-factor VSP Controid frequency shift spetral ratio method |
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