范宇婷;

• 1:中国科学院地质与地球物理研究所

• 2:中国海洋石油总公司信息化部

摘要(Abstract)：

地下介质并不是理想的弹性介质,地层存在黏性吸收作用,对地震子波的频带及峰值频率等参数产生影响.基于波场延拓理论,采用波动方程正演模拟方法,对3种不同黏性吸收程度及厚度的薄砂层进行正演模拟;采用广义S变换,分析反射复合波的瞬时频谱.结果表明:薄砂层瞬时频谱的峰值频率与无黏性吸收作用下相比大幅度变化,导致由峰值频率预测薄砂层厚度出现较大误差.陷频频率受地层黏性吸收作用比较小,相对比较稳定.利用陷频频率出现的周期性与薄砂层厚度之间的关系预测薄砂层厚度,可以为复杂地质环境下有利薄储层的定性识别和厚度定量预测提供支持.

关键词(KeyWords)：黏性吸收;薄砂层;正演模拟;瞬时频谱;广义S变换

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金创新研究群体项目(41021063)

作者(Author):范宇婷;

Email:

参考文献(References)：

• [1]杜启振,杨慧珠.线性黏弹性各向异性介质速度频散和衰减特征研究[J].物理学报,2002,51(9):2101-2018.Du Qizhen,Yang Huizhu.Velocity dispersion and attenuation in anisotropic linear viscoelastic media[J].Acta Physica Sinica,2002,51(9):2101-2018.

• [2]郑鸿明,薛为平,蒋琳,等.黏弹性介质中地震波的吸收衰减补偿方法[J].新疆石油地质,2006,27(5):556-558.Zheng Hongming,Xue Weiping,Jiang Lin,et al.Compensation method of seismic wave absorption and attenuation in viscoelastic media[J].Xinjiang Petroleum Geology,2006,27(5):556-558.

• [3]孙成禹.地震波理论与方法[M].东营:中国石油大学出版社,2007.Sun Chengyu.Seismic wave theory and method[M].Dongying:China University of Petroleum Press,2007.

• [4]Yuan Chunfang.Seismic wave propagating in Kelvin-Voigt homogeneous visco-elastic media[J].Science in China:Series D Earth Sciences,2006,49(2):147-153.

• [5]Richer N H.Transient waves in visco-elastic media[M].Amsterdam:Elsevier Scientific Pub.Co.,1977:1-278.

• [6]Aki K,Richards P G.Quantitative seismology[M].2nd ed.Sansalito:University Science Books,2002.

• [7]张中杰.地震各向异性研究进展[J].地球物理学进展,2002,17(2):281-293.Zhang Zhongjie.A review of the seismic anisotropy and its applications[J].Progress in Geophysics,2002,17(2):281-293.

• [8]杨仁虎,常旭,刘伊克,等.黏弹性介质地震波场正演数值模拟[C]∥中国地球物理.合肥:中国科学技术大学出版社,2009:428-429.Yang Renhu,Chang Xu,Liu Yike,et al.Viscoelastic wave inhomogeneous isotropic medium is speech based on numerical simulation[C]∥Geophysical Chinese.Hefei:University of Science and Technology of China Press,2009:428-429.

• [9]范家参.黏弹性介质中的地震波[J].地震研究,2001,24(4):358-359.Fan Jiashen.Seismic waves is viscoelastic medium[J].Journal of Seismological Reseearch,2001,24(4):358-359.

• [10]王小杰,印兴耀,吴国忱,等.黏弹性介质地震波传播特征及反射特征研究[J].物探化探计算技术,2012,34(3):258-266.Wang Xiaojie,Yin Xingyao,Wu Guochen,et al.Study on propagation characteristics and reflection characteristics of seismic wave in viscoelastic medium[J].Computing Techniques for Geophysical and Geochemical Exploration,2012,34(3):258-266.

• [11]崔凤林,管叶君.时频分析——薄互层结构研究的新途径[J].石油物探,1992,31(2):1-15.Cui Fenglin,Guan Yejun.Time-Frequency analysis:A new way for tin interbeds examination[J].Geophysical Prospecting for Petroleum,1992,31(2):1-15.

• [12]Knapp R W.Energy distribution in wavelets and implications on resolving power[J].Geophysics,1993,58(1):39-46.

• [13]De Voogd N,den Rooijen N.Thin-layer response and spectral bandwidth[J].Geophysics,1983,48(1):12-18.

• [14]凌云,西晓宇,孙德胜,等.薄储层叠后反演影响因素分析与地震属性解释研究[J].石油物探,2008,47(6):531-558.Ling Yun,Xi Xiaoyu,Sun Desheng,et al.Analysis on affecting factors of post-stack inversion and seismic attribute interpretation of thin reservoir[J].Geophysical Prospecting for Petroleum,2008,47(6):531-558.

• [15]孙鲁平,郑晓东,首皓,等.薄层地震峰值频率与厚度关系研究[J].石油地球物理勘探,2010,45(2):254-259.Sun Luping,Zheng Xiaodong,Shou Hao,et al.The studies on relationship between thin layer seismic peak frequency and its thickness[J].Geophysical Prospecting for Petroleum,2010,45(2):254-259.

• [16]Okaya D A.Spectral properties of the earth's contribution to seismic resolution[J].Geophysics,1995,60(1):244-251.

• [17]Marfurt K J,Kirlin R L.Narrow-band spectral analysis and thin-bed tuning[J].Geophysics,2001,66(4):1274-1283.

• [18]Partyka G A,Gridley J M,Lopez J.Interpretational applications of spectral decomposition in reservoir characterization[J].The Leading Edge,1999,18(3):353-360.

• [19]周丽,顾汉明,马灵伟,等.基于波动方程正演模拟分析薄砂层含不同流体的AVO特征[J].地质科技情报,2013,32(2):169-173.Zhou Li,Gu Hanming,Ma Lingwei,et al.Analysis of AVO characterisitics on thin sand reservoir with various fluid based seismic modeling[J].Geological Science and Technology Information,2013,32(2):169-173.

• [20]熊晓军,贺振华,黄德济,等.广义S变换在地震高分辨处理中的应用[J].勘探地球物理进展,2006,6(29):415-418.Xiong Xiaojun,He Zhenhua,Huang Deji,et al.Application of generalized S transform in seismic high resolution processing[J].Progress in Exploration Geophysics,2006,6(29):415-418.

• [21]Mallat S,Zhang Z.Matching pursuits with time-frequency dictionaries[J].IEEE Transactions on signal processing,1993,41(12):3397-3415.

• [22]杨昊,郑晓东,李劲松,等.基于匹配追踪的薄层自动解释方法[J].石油地球物理勘探,2013,48(3):429-435.Yang Hao,Zheng Xiaodong,Li Jinsong,et al.Thin-bed automatic interpretation based on matching pursuit[J].Geophysical Prospecting for Petroleum,2013,48(3):429-435.

• [23]宋维琪,朱卫星,孙英杰.复数子波匹配追踪算法识别薄层砂体[J].地球物理学进展,2007,22(6):1796-1801.Song Weiqi,Zhu Weixing,Sun Yingjie.Identify bed layer sandbody by complex wavelet matching algorithm[J].Progress in Geophysics,2007,22(6):1796-1801.

• [24]刘震,张万选,张厚福.储层厚度定量解释方法研究[J].石油地球物理勘探,1991,26(6):777-784.Liu Zhen,Zhang Wanxuan,Zhang Houfu.A research into quantitative interpretation of reservoir thickness[J].Geophysical Prospecting for Petroleum,1991,26(6):777-784.

• [25]黄绪德.薄层陷频法[J].勘探地球物理进展,2002,25(5):1-6.Huang Xude.Discussion on notches in thin-bed[J].Progress in Exploration Geophysics,2002,25(5):1-6.

• [26]李雪英,陈树民,王建民,等.薄层时频特征的正演模拟[J].地球物理学报,2012,55(10):3410-3419.Li Xueying,Chen Shumin,Wang Jianmin,et al.Forward modeling studies on the time-frequency characteristics of thin layers[J].Chinese Journal of Geophysics,2012,55(10):3410-3419.

• [27]李雪英,文慧俭,张桐,等.黏性介质叠前时间偏移方法[J].东北石油大学学报,2013,37(4):98-104.Li Xueying,Wen Huijian,Zhang Tong,et al.The method of prestack time migration in anelastic media[J].Journal of Northeast Petroleum University,2013,37(4):98-104.