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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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相对振幅保持的转换波叠前时间偏移方法研究
Keywords: 叠前时间偏移,转换波,振幅保持,地震数据处理,单程波方程,成像条件
Abstract:
？振幅保持的转换波叠前偏移不但能使构造准确成像,而且还可为avo分析提供更多可靠信息。本文以纵波的单程波方程为基础,给出了转换波的单程波方程。根据反褶积成像条件,利用kirchhoff-helmholtz积分推导出转换波的共炮保幅叠前时间偏移公式。由于最后反演积分的结果是体现反射系数的信息,所以又导出了转换波乘积型成像条件的共角度道集的偏移公式,这样使偏移后道集的振幅峰值成为入射角的函数,同时也大大提高了计算的稳定性。理论模型试算证明,无论是水平层还是倾斜层,应用振幅保持的转换波叠前时间偏移都能使偏移后的振幅峰值比较真实地反映原始反射系数的大小。
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|
| [2] | 杨勤勇,徐丽萍.地震勘探技术新进展.勘探地球物理进展,2002,25(1);5-10
|
| [3] | 王棣,王华忠,马在田等.叠前时间偏移方法综述.勘探地球物理进展,2004,27(5);313-316
|
| [4] | blcistcinn.ontheimagingofreflectorsintheearth.geophysic、,1987,52(7):931-942
|
| [5] | schlcichcrj,tygclmandhubralp.3-dtrue-amplitudefinite-offsetmigration[j].geophysics.1993,58(8):1112-1126
|
| [6] | schlcichcrj,hubralp,tygclmctal.minimumapcrturesandfresnclzonesinmigrationanddemigration[j].geophysics.1997,62(1):183-194
|
| [7] | 孙建国.kirchhoff型真振幅偏移与反偏移.勘探地球物理进展,2002,25(6);(1)-5
|
| [8] | 孙建国.论三维等时线叠加反偏移中的有关问题.吉林大学学报(地球科学版),2002,32(3);274-278
|
| [9] | sunjg.limited-aperturemigration.geophysics,1997,65(2):584-595
|
| [10] | sunjg.onthelimitedaperturemigrationintwodimensions[j].geophysics.1998,63(3):984-994
|
| [11] | ghangy,zhanggqandblcistcinn.theoryoftrueamplitudeone-waywaveequationsandtrue-amplitudecommon-shotmigration.geophysic、,2005,70(4):1~10
|
| [12] | 张宇.振幅保真的单程波方程偏移理论.地球物理学报,2006,49(5)1410-1430
|
| [13] | ghangy,karazincirm,notforsjsetal.amplitudepreservingv(z)pre-stackkirchhoffmigration,demigrationandmodeling.expandedabstractsofsage64thannualconfereme,2002,27-30
|
| [14] | ghangy,craysandyoungj.exactandapproximateweightsforkirchhoffmigration.expandedal}stractsofseg70thannualmeeting,2000,10361039
|
| [15] | geigerhd.amplitude-preservingweightsforkirchhoffprestacktimemigration.expandedabstractsofseg72ndamnualmeeting,2002,220-1223
|
| [16] | gcigcrhd.relative-amplitude-preservingweightsforkirchhoffprestacktimemigrationlaytheequiv-alertoffsetmethod.universityofcalgary,2001,216-297
|
| [17] | wangsw,bancroftjcandlawtondc.convcrtcd-wavc(p-sv)prcstackmigrationandmigrationvcloeityanalysis.expandedabstractsofseg67thamnualmeeting,1997,1575-1578
|
| [18] | lixyandbancroftjc.convertedwavemigrationandcommonconversionpointbinningbyequivalentoffset.expandedabstractsofseg67thannualmeeting,1997,1587-1590
|
| [19] | bancroftjc,geigerhdandmargravegf.thecquivalentoffsetmethodofprestacktimemigration.geophysics,1998,63(6):2042-2053
|
| [20] | wangw,phami.d.converted-waveprestackimapingandvelocityanalysisbypseudo-offsetmigration.expandedabstractsofsage63rdconfereme,2001,1-12
|
| [21] | 张荣忠,李霞.转换波速度估算和深度成像新方法-拟偏移距偏移法.勘探地球物理进展,2002,25(4):27-30
|
| [22] | fowlerpj.acomparativeoverviewofprestacktimemigrationmethods.expandedabstractsofseg67thamnualmeeting,1997,1571-157
|
| [23] | 罗省贤,贺振华.转换p-sv波叠前偏移.石油地球物理勘探,1991,260);465-472
|
| [24] | 李录明,罗省贤.p-p波及p-sv波叠前深度偏移速度模型建立方法.地球物理学报,1998,41(增刊):306-307
|
| [25] | lixy,yuanj.converted-waveimagingininhomogcncous,anisotropicmedia;partⅱ-parameterestrnation.expandedabstractsofsage63rdconference,2001,109-113
|
| [26] | lixy,yuanj.converted-waveimagingininhomogcncous,anisotropicmedia;part-prcstackmigration.expandedabstractsof63rdsageconference,2001,114-117
|
| [27] | wangwz,longldandminl.converted-waveprestacktimemigrationforisotropicandanisotropicmedia.expandedabstractsof72ndsegannualmeeting,2002,990-993
|
| [28] | thomsenl.converted-wavereflectionseismologyoverinhomogeneous,anisotropicmedia[j].geophysics.1999,64(3):678-690
|
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