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基于射线参数估计的快速2D Kirchhoff叠前深度偏移 被引量:2

HIGH-EFFICIENCY 2D KIRCHHOFF PRE-STACK MIGRATION BASED ON THE RAY-PARAMETER ESTIMATION
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摘要 叠前深度偏移是油气勘探领域解决复杂地震构造成像问题的主要手段。这里介绍一种基于射线参数估计的快速2D Kirchhoff叠前深度偏移方法。该方法根据炮点和接收点的相对位置,对入射波的射线参数进行先验约束,辅以设定振幅阈值,仅对主要反射事件进行偏移等,显著减小了射线追踪计算,较传统Kirchhoff叠前深度偏移显著提高了偏移成像效率。数值模拟计算结果表明,该算法能正确对复杂构造进行快速成像。这里介绍的快速Kirchhoff叠前深度偏移方法,可用于野外现场质量监控与精确偏移成像前的速度分析与建模。 Pre-stack depth migration is the one of the most important technique for the imaging of the complex subsurface structure.The paper presents a high-efficiency 2D Kirchhoff pre-stack depth migration technique based on ray parameter estimation.By setting constraint on the ray parameters of the incident waves and setting threshold on the reflection events to take into count,the algorithm reduces markedly the ray tracing calculation cost.Numerical tests show that the algorithm is of capability of rapid imaging of complex subsurface structure and can been used in the field real-time imaging and fast velocity analysis.
出处 《物探化探计算技术》 CAS CSCD 2008年第5期368-372,348,共5页 Computing Techniques For Geophysical and Geochemical Exploration
基金 国家自然科学基金委员会与中国石油化工股份有限公司联合基金资助项目(40739907)
关键词 叠前深度偏移 Kirchhoff偏移 射线参数估计 射线追踪 pre-stack depth migration Kirchhoff migration ray tracing ray-parameter estimation
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参考文献15

  • 1徐基祥,陈立康,刘雯林.叠前深度偏移的应用范围和几点认识[J].石油学报,1999,20(3):8-12. 被引量:3
  • 2张钋,李幼铭,刘洪.几类叠前深度偏移方法的研究现状[J].地球物理学进展,2000,15(2):30-39. 被引量:30
  • 3张铁强,王正和.叠前深度偏移在复杂构造模型成像中的应用[J].物探化探计算技术,2007,29(4):281-285. 被引量:6
  • 4HAGEDOORN J G. A process of seismic reflection interpretation [ J ]. Geophys. Prosp. , 1954,2 : 85.
  • 5SCHNEIDER W A. Integral formulation for migration in two and three dimensions [ J ]. Geophysics, 1978,43:49.
  • 6CARTER J A, FRAZER L N. Accommodating lateral velocity changes in Kirchhoff migration by means of Fermat's principe [ J ]. Geophysics, 1984,49:46.
  • 7KEHO T H, BEYDOUN W B. Paraxial ray Kirchhoff migration [ J ]. Geophysics, 1988,53 : 1540.
  • 8GRAY S H, MAY W P. Kirchhoff migration using eikonal equation traveltime [ J ]. Geophysics, 1994,59 : 810.
  • 9EPILI D, MCMECHAN G A. Implementatlon of 3 - D prestack Kirchhoff migration, with application to data from the Ouachita frontal thrust zone [ J ]. Geophysics, 1996,61:1400.
  • 10HUA B L, MCMECHAN G A. Parsimonious Kirchhoff depth migration[J]. Internat. Mtg. Expanded Abstract, Soc. Expl. Geophys, 1999,69 : 1382.

二级参考文献21

  • 1方伍宝,周腾,袁联生,杨子兴.叠前深度偏移在复杂地区的应用[J].石油物探,2003,42(1):68-71. 被引量:35
  • 2李少英,王有新.叠前深度偏移[J].石油地球物理勘探,1995,30(A01):13-16. 被引量:3
  • 3刘洪,孟凡林,李幼铭.计算最小走时和射线路径的界面网全局方法[J].地球物理学报,1995,38(6):823-832. 被引量:67
  • 4Promax MVA,石油地球物理勘探,1996年
  • 5马在田,地震成像技术.有限差分法偏移,1989年
  • 6Han Baoniu,Int Mtg Soc Expl Geophys Expanded Abstracts,1988年,1104页
  • 7Sun Y. Ray tracing in 3-D media by parameterized shooting. Geophys J Int, 1993,114(1 ) : 145-155.
  • 8徐常练.地震波旅行时计算研究现状.SEG第68届年会论文概要.北京:石油工业出版社,1999.
  • 9Langan R T,Lerche I and Cutler R T. Tracing of rays through heterogeneous media :an accurate and efficient procedu re. Geophysics, 1985,50 ( 9 ) : 1456-1465.
  • 10Um J and Thurber C H. A fast algorithm for twopoint seismic ray tracing. Bull Seis Soc Am, 1987,77(3):972-986.

共引文献45

同被引文献24

  • 1张铁强,王正和.叠前深度偏移在复杂构造模型成像中的应用[J].物探化探计算技术,2007,29(4):281-285. 被引量:6
  • 2KEHO T H,BEYDOUNW B. Paraxial ray Kirchhoff migration[J]. Geophysics, 1988(53): 1540.
  • 3GRAY S H, MAY W P. Kirehhoff migration using eikonal equation travehimc [J]. Geophysics, 1994 (59) :810.
  • 4SHENG XU, GILLES I.AMBAR'e. Fast migration/ inversion with multivaued rayfields: Partl - method, validation test, and application in 2D to marmous[J]. Geophysics, 2004,69(4) : 1311.
  • 5GRAHAM WINBOW. CRAM and Kirchhoff images of a west Africa salt structure[J]. The leading edge, 2009(2) : 146.
  • 6EDWARD HELSING C., DAVID U, BERMANL. A new approach to seismic interpretation in challenging imaging environments [J]. The leading edge, 2007 (11):1434.
  • 7GRAHAM WINBOW, TED CI.EE, MIKE RAINWATER. Multipath imaging into common-reflection - angle volumes at a GOM site[J]. The leading edge, 2007(11) :1430.
  • 8PAUl C. SAVA, SERGEY FOMEL. Angle-domain common-image gathers by wavefield continuation methods[J]. Geophysics, 2003,68(3) : 1065.
  • 9ZVI KOREN, SHENG XU. Target-Oriented common reflection angle migration[J]. SEG Infl Exposition and 72nd Annual Meeting, Salt I.ake City, Utah. , 2002.
  • 10CHAPMAN, C. H. RAY. Theory and its Extensions:WKBJ and Maslov seismogram[J]. Journal of Geophysics, 1985 (58): 27.

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