天然气勘探

三维VTI介质初至波走时层析速度和各向异性参数建模方法研究

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  • 中国石油大学(华东)地球科学与技术学院,山东 青岛 266580
蔡俊雄(1993-),男,江西九江人,硕士研究生,主要从事地震数据去噪和地震波走时层析研究.E-mail:992743065@qq.com.

收稿日期: 2017-07-22

  修回日期: 2017-09-25

  网络出版日期: 2017-11-10

基金资助

国家自然科学基金项目“基于石油勘探中地震面波信息的近地表参数反演方法研究”(编号:41374123);国家自然科学基金项目“基于微地震数据的致密油气储层裂纹演化分形特征研究”(编号:41504097);国家科技重大专项项目“复杂目标多尺度资料高精度处理关键技术研究”(编号:2016ZX05006-002-03)联合资助.
 

Study of first-arrival traveltime tomographic velocityand anisotropy parameters modeling method in 3D VTI media

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  • School of Geosciences,China University of Petroleum,Qingdao 266580,China

Received date: 2017-07-22

  Revised date: 2017-09-25

  Online published: 2017-11-10

摘要

三维各向异性走时层析反演问题一直是地震数据处理中的难点,其核心是各向异性参数敏感核函数的建立和三维大规模数据的处理。基于球谐展开群速度表达式,计算走时关于各向异性参数的敏感核函数,引入整形正则化来处理大规模、不适定反问题,并利用共轭梯度法对垂直慢度、水平慢度和动校正慢度的参数化方法(第一种参数化方法)与Thomsen参数化方法(第二种参数化方法)进行反演,实现三维VTI介质初至波走时层析反演。理论模型和实际资料处理结果表明,与经典的Thomsen参数化方法相比,垂直慢度、水平慢度和动校正慢度的参数化方法,更有利于三维VTI介质走时层析速度反演和各向异性参数的建模,进一步提高了反演的精度,具有较好的应用前景。
 

本文引用格式

蔡俊雄,乐友喜,曾勉 . 三维VTI介质初至波走时层析速度和各向异性参数建模方法研究[J]. 天然气地球科学, 2017 , 28(11) : 1771 -1777 . DOI: 10.11764/j.issn.1672-1926.2017.09.013

Abstract

The problem of 3D anisotropic traveltime tomography inversion has always been a difficult point in seismic data processing.The core of it is the establishment of anisotropic parameter sensitivity kernel functions and the processing of 3D large-scale data.Based on the group velocity expression of the spherical harmonic expansion,the paper study calculates the sensitivity kernel function of traveltime for anisotropic parameters,and introduces the shaping regularization to deal with large-scale,III-posed inverse problems.Besides,the study also realized the traveltime tomographic inversion of first-arrival in 3D VTI media by using the conjugate gradient method to inverse the vertical slowness,horizontal slowness and NMO slowness parameterterization (the first parameterization) as well as the Thomsen parameterization (the second parameterization).According to the theoretical models and real data processing results,compared with traditional Thomsen parameterization,the first parameterization is more beneficial to the inversion of 3D anisotropic traveltime tomography velocity and the modeling of anisotropic parameter,improving the accuracy of inversion further,and has a good application prospect.
 

参考文献

[1]Liu Shouwei,Wang Huazhong,Cheng Jiubing,et al.Space-time-shift imaging condition and migration velocity analysis[J].Chinese Journal of Geophysics,2008,51(6):1883-1891.[刘守伟,王华忠,程玖兵,等.时空移动成像条件及偏移速度分析[J].地球物理学报,2008,51(6):1883-1891.]
[2]Cheng Jiubing,Wang Huazhong,Ma Zaitian.Double square root equation migration methods of narrow azimuth seismic data[J].Chinese Journal of Geophysics,2005,48(2):399-405.[程玖兵,王华忠,马在田.窄方位地震数据双平方根方程偏移方法探讨[J].地球物理学报,2005,48(2):399-405.]
[3]Wang Hongqi,Qu Shouli,Ning Junrui,et al.Application of tomographic inversion static correction in complex areas of western China[J].Natural Gas Geoscience,2009,20(2):258-262.[王红旗,曲寿利,宁俊瑞,等.层析反演静校正方法在西部复杂地区的应用[J].天然气地球科学,2009,20(2):258-262.]
[4]Hu Ziduo,He Zhenhua,Wang Yuchao,et al.Comprehensive static correction and its application forhigh-steep structure in east Sichuan Basin[J].Natural Gas Geoscience,2010,21(6):1046-1053.[胡自多,贺振华,王宇超,等.综合静校正技术及其在川东高陡构造区应用效[J].天然气地球科学,2010,21(6):1046-1053.]
[5]Sang Yunyun,Li  Zhenchun,Zhang Kai.Shortest path ray tracing based on parab-olic traveltime interpolation[J].Oil Geophysical Prospecting,201,48(3):403-409.[桑运云,李振春,[HJ1.51mm]张凯.基于抛物旅行时插值的最短路径射线追踪[J].石油地球物理勘探,201,48(3): 403-409.]
[6]Nakanishi I,Yamaguchi K.A numerical experiment on nonlinear image reconstruction from first-arrival times for two dimensional island arc structure[J].Journal of Physical Earth,1986,34(2):195-201.
[7]Cerveny V.Seismic Ray Theory[M].Cambridge:Cambridge University Press,2001.
[8]Jech J.Three-dimensional inversion problem for inhomogeneous transversely isotropic media[J].Studia Geophysics et Geodetica,1988,32(2):136-143.
[9]Huang T,Xu S,Wang J,et al.The benefit of TTI tomography for dual azimuth data in Gulf of Mexico[J].Seg Technical Program Expanded Abstracts,1949,27(1):395-405.
[10]Liu Yuzhu,Wang Guangyin,Dong Liangguo,et al.Joint inversion of VTI parameters using nonlinear traveltime tomography[J].Chinese Journal of Geophysics,2014,57(10):3402-3410.[刘玉柱,王光银,董良国,等.VTI介质多参数联合走时层析成像方法[J].地球物理学报,2014,57(10):3402-3410.]
[11]Yang Kai,Xing Fengyuan,Li Zhenwei,et al.3D Stereo-tomography based on the n-on-reduced Hamiltonian[J].Chinese Journal of Geophysics,2016,59(9):3366-3378.[杨锴,邢逢源,李振伟,等.基于非降阶汉密尔顿算子的三维立体层析反演[J].地球物理学报,2016,59(9):3366-3378.]
[12]Tikhonov A.Solution of incorrectly formulated problems and the regularization method[J].Soviet Math Dokl,196,5(2):1035-1038.
[13]Zhou C,Brandsberg-Dahl S,Jiao J.A Continuation Approach to Regularize the Reflection Tomography with a 3D Gaussian Filter[C].Eage Conference and Exhibition Incorporating SPE Europec,2009.
[14]Fomel S.Shaping regularization in geophysical estimation-problems[J].Geophysics,2007,72(2):R29-R36.

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