三维转换波地震资料处理技术在LMD地区的应用
|
摘要
本文以LMD地区三维三分量(3D3C)地震资料为研究对象,较为系统地总结了三维转换波地震资料成像处理技术,如坐标旋转、叠前去噪、静校正、叠前时间偏移等,并给出了纵波、转换波联合处理流程;同时指出了Z分量、R分量联合处理与R、T分量联合处理在流程上的差异。通过实际应用,提高了三维转换波地震资料的成像精度,为三维三分量地震资料解释提供了较好的基础资料。
In this paper 3D3C (3 Dimensional and 3 Component) seismic data in LMD area is our study object,based on the data we systematically summarized imaging techniques for 3D seismic converted data,such as coordinate rotation,pre-stack noise elimination,static correction,pre-stack time migration and so on,the joint processing flowchart for P wave and PS wave (converted wave) were presented,the difference between Z-component & R-component joint processing flowchart and R-component & T-component joint processing flowchart was pointed out.By application of the technique to field data,it can be seen that the imaging precision for 3D seismic converted data was greatly improved,as a result the high quality basic datasets were provided for further 3D3C seismic data interpretation.
In this paper 3D3C (3 Dimensional and 3 Component) seismic data in LMD area is our study object,based on the data we systematically summarized imaging techniques for 3D seismic converted data,such as coordinate rotation,pre-stack noise elimination,static correction,pre-stack time migration and so on,the joint processing flowchart for P wave and PS wave (converted wave) were presented,the difference between Z-component & R-component joint processing flowchart and R-component & T-component joint processing flowchart was pointed out.By application of the technique to field data,it can be seen that the imaging precision for 3D seismic converted data was greatly improved,as a result the high quality basic datasets were provided for further 3D3C seismic data interpretation.
引文
[1]Stewart R R,Gaiser J E,Brown R J and Lawton D C.Converted-wave seismic exploration:Methods.Ge-ophysics,2002,67(5),1345～1363
[2]Thomsen L.Converted-wave reflection seismology over inhomogeneous,anisotropic media.Geophysics,1999,64(3):678～690
[3]Tessmer G and Behle A.Common reflection point data-stacking for converted waves.Geophysical Pros-pecting,1988,36(7):671～688
[4]Harrison M P.Processing of P-SV surface seismic data:anisotropy analysis,dip moveout and migra-tion.Ph.D.thesis,The University of Calgary,1992
[5]TsvankinI and Grechka V.Dip moveout of converted waves and parameter esti mation in transversely iso-tropic media.Geophysical Prospecting,2000,48(2):257～292
[6]Li X-Y and Druzhinin A.A practical approach to P-SV prestack ti me migration and velocity analysis for transverse isotropy.SEG Technical ProgramExpanded Abstracts,2000,19:1142～1145
[7]Dai Hand Li X-Y.Anisotropic migration and model building for4-C seismic data:Acase study from Al-ba.SEG Technical Program Expanded Abstracts,2001,20:795～798
[8]Dai H.Integrative analysis of anisotropy parameter and velocities for PS converted waves.SEG Techni-cal Program Expanded Abstracts,2003,22:1577～1580
[9]毕丽飞,孟宪军,冯刚等.三维转换波资料处理方法研究及应用.石油地球物理勘探,2008,43(增刊2):150～154
[10]王淑荣,冯刚,苏燕等.转换波处理方法研究.石油地球物理勘探,2008,43(增刊2):146～149
[11]高磊,潘树林,周熙襄等.利用转换波初至进行转换波剩余静校正.大庆石油地质与开发,2008,27(1):130～133
[12]杨海申,李彦鹏,陈海青.转换波延迟时静校正.石油地球物理勘探,2006,41(1):13～16
[13]刘洋,魏修成.转换波三参数速度分析及动校正方法.石油地球物理勘探,2005,40(5):504～509
[14]赵秀莲,许士勇,马在田.转换波剩余静校正方法与应用.石油地球物理勘探,2004,39(5):532～538
[15]魏修成,刘洋.高精度转换波速度分析.石油勘探与开发,2000,27(2):57～61
[16]Li X-Y and Yuan J.Converted-wave moveout and conversion-point equationin layered VTI media:the-ory and application.Journal Applied Geophysics,2003,54(3):297～318
[17]Li X-Y,Yuan J and Bale R.Converted-wave travel-ti me equations in layered anisotropic media:An over-view.Expanded Abstracts of65th EAGE Confer-ence,2003,105～109
[2]Thomsen L.Converted-wave reflection seismology over inhomogeneous,anisotropic media.Geophysics,1999,64(3):678～690
[3]Tessmer G and Behle A.Common reflection point data-stacking for converted waves.Geophysical Pros-pecting,1988,36(7):671～688
[4]Harrison M P.Processing of P-SV surface seismic data:anisotropy analysis,dip moveout and migra-tion.Ph.D.thesis,The University of Calgary,1992
[5]TsvankinI and Grechka V.Dip moveout of converted waves and parameter esti mation in transversely iso-tropic media.Geophysical Prospecting,2000,48(2):257～292
[6]Li X-Y and Druzhinin A.A practical approach to P-SV prestack ti me migration and velocity analysis for transverse isotropy.SEG Technical ProgramExpanded Abstracts,2000,19:1142～1145
[7]Dai Hand Li X-Y.Anisotropic migration and model building for4-C seismic data:Acase study from Al-ba.SEG Technical Program Expanded Abstracts,2001,20:795～798
[8]Dai H.Integrative analysis of anisotropy parameter and velocities for PS converted waves.SEG Techni-cal Program Expanded Abstracts,2003,22:1577～1580
[9]毕丽飞,孟宪军,冯刚等.三维转换波资料处理方法研究及应用.石油地球物理勘探,2008,43(增刊2):150～154
[10]王淑荣,冯刚,苏燕等.转换波处理方法研究.石油地球物理勘探,2008,43(增刊2):146～149
[11]高磊,潘树林,周熙襄等.利用转换波初至进行转换波剩余静校正.大庆石油地质与开发,2008,27(1):130～133
[12]杨海申,李彦鹏,陈海青.转换波延迟时静校正.石油地球物理勘探,2006,41(1):13～16
[13]刘洋,魏修成.转换波三参数速度分析及动校正方法.石油地球物理勘探,2005,40(5):504～509
[14]赵秀莲,许士勇,马在田.转换波剩余静校正方法与应用.石油地球物理勘探,2004,39(5):532～538
[15]魏修成,刘洋.高精度转换波速度分析.石油勘探与开发,2000,27(2):57～61
[16]Li X-Y and Yuan J.Converted-wave moveout and conversion-point equationin layered VTI media:the-ory and application.Journal Applied Geophysics,2003,54(3):297～318
[17]Li X-Y,Yuan J and Bale R.Converted-wave travel-ti me equations in layered anisotropic media:An over-view.Expanded Abstracts of65th EAGE Confer-ence,2003,105～109
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心