共聚焦点(CFP)成像技术述评
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摘要
CFP成像有共聚焦和双聚焦两种形式。前者用于寻找构造信息 ,后者则主要用于分析与储层描述有关的信息。借助于两个连续且相互独立的聚焦步骤 ,CFP成像技术将叠前偏移与速度分析分离开来 ,用算子更新代替传统的对速度场直接更新 ,最后由经正确更新的聚焦算子反演出地下速度场。该技术在精确成像的同时 ,很好地避免了速度难题。这一优良特性可被广泛应用于地震数据反演和处理的各个方面 (处理复杂近地表难题、多次波消除、多分量偏移、地下盐丘成像及时延地震监测等 )。因此 ,CFP成像技术是一种理论上先进、应用前景广阔的新的成像技术 ,对复杂地质问题的解决更是有着独到的功效 ,在我国可望有广阔的发展空间
CFP(Common Focus Point)imaging technology contains confocal and bifocal version.The former is used to seek structural information while the later is used to seek reservoir related information.By the aid of two consecutive and independent each other focus steps,the CFP technology separates the pre stack migration from the velocity analysis progress using renewing of operator to replace traditionally direct renewing of velocity field and inversion of subsurface velocity field can be finally finished by correctly renewed focus operator.The technology maximally avoids the velocity problem while precision imaging can be got.This advantage can be widely used in every aspect of seismic inversion and data processing (such as handling complicated near surface problem, removing multiple,multi component imaging subsalt imaging and time lapse seismic monitoring,etc).Therefore, the CFP imaging technology is a new imaging technology which has advanced theory and wide applied prospect,having a special effect on solving complex geologic problems and gaining wide development space in our country.
CFP(Common Focus Point)imaging technology contains confocal and bifocal version.The former is used to seek structural information while the later is used to seek reservoir related information.By the aid of two consecutive and independent each other focus steps,the CFP technology separates the pre stack migration from the velocity analysis progress using renewing of operator to replace traditionally direct renewing of velocity field and inversion of subsurface velocity field can be finally finished by correctly renewed focus operator.The technology maximally avoids the velocity problem while precision imaging can be got.This advantage can be widely used in every aspect of seismic inversion and data processing (such as handling complicated near surface problem, removing multiple,multi component imaging subsalt imaging and time lapse seismic monitoring,etc).Therefore, the CFP imaging technology is a new imaging technology which has advanced theory and wide applied prospect,having a special effect on solving complex geologic problems and gaining wide development space in our country.
引文
[1] BerkhoutA J.Pushing the limits of seism ic imaging,Part:Prestack m igration in term s of doubledynam ic focusing.Geophysics,1997,62(3):937～953
[2] BerkhoutA J.Pushing the limits of seism ic imaging,Part:Integration of prestack migration,velocityestim ation,andAVO analysis.Geophysics,1997,62(3):954～969
[3] JiJ.Controlled illumination by wavefront synthesis.SEP Report,1993,79:129～143
[4] BerkhoutA J.Areal shot record technology.JournalSeismicExploration,1992,(1):251～264
[5] ThorbeckeJ T.Com mon focus point technology.PhD thesis,DelftU niversity ofTechnology,1997
[6] BerkhoutA J&ThorbeckeJ.Evaluation of seism icim age quality—Part:Assessment of velocitymodels.ExpandedAbstracts of68thSEG AnnInternatMtg,1998
[7] BerkhoutA J.Seism ic inversion in steps.TheL ead-ingEdge,1999,933～939
[8] BerkhoutA J&OngkiehongL.Analysis of seism icacquisition geometries by focal beam s.ExpandedAbstracts of68thSEG AnnInternatMtg,1998
[9] BolteJ F B &VerschuurD J.Aspects of focusingoperator updating.ExpandedAbstracts of68thSEGAnnInternatMtg,1998,1604～1607
[10] HeggeR F,FokkemaJT &DuijndamA JW.U singfocusing operators to estim ate velocity m odels.ExpandedAbstracts of68thSEG AnnInternatMtg,1998
[11] Kelam isP G,BerkhoutA J,VerschuurD J&Ro-mijnR.Comm on focus point technology— anexample from theRedSea area ofSaudiArabia.Journal ofSeismicExploration,1998,7(3-4):393～402
[12] BerkhoutA J &VerschuurD J.Evaluation of seis-mic im age quality—Part:Assessment ofmigration algorithm s.ExpandedAbstracts of68thSEG AnnInternatMtg,1998
[13] BerkhoutA J.CFP technology,new opportunities inseism ic processing.ExpandedAbstracts of70 thSEGAnnInternatMtg,2000
[14] BolteJF B &VerschuurD J.U se of the focal pointmatrix forCFP operator traveltime estimation.ExpandedAbstracts of70 thSEG AnnInternatMtg,2000
[15] BolteJF B,VerschuurD J&HeggeR F.CFP oper-ator estim ation and inversion dem onstrated on a fielddata set—Part:operator updating.ExpandedAbstracts of69thSEG AnnInternatMtg,1999,1373～1376
[16] Hindriks(Kees)C O H.CFP approach to the nearsurface problem.Department ofAppliedEarthSciences,DelftUniversity,ResearchPlan1999～2001
[17] VerschuurD J&BerkhoutA J.Overview of surfaceand internal m ultiple rem oval strategies.2000OffshoreTechnologyConference held inHouston,Texas,May2000
[18] BerkhoutA J&VerschuurD J.Rem oval of internalmultiples.ExpandedAbstracts of69thSEG AnnInternatMtg,1999
[19] VerschuurD J&BerkhoutA J.CFP approach to in-ternal m ultiple rem oval:field data exam ples.ExpandedAbstracts of70 thSEG AnnInternatMtg,2000
[20] BerkhoutA J &VerschuurD J.CFP approach tomulti- com ponent imaging.ExpandedAbstracts of70 thSEG AnnInternatMtg,2000
[21] WinthaegenP &VerschuurD J.CFP technology ap-plied to time- lapse seismic m onitoring.TN O-N ITGIN FORMATION,May2001
[22] KabirM M N &VerschuurD J.A constrained para-metric inversion for velocity analysis based onCFPtechnology.Geophysics,2000,65(4):1210～1222
[23] HeggeR F,BolteJF B,Fokkem aJT &DuijndamA J W.CFP operator estim ation and inversiondem onstrated on a field data set—Part:velocityestim ation.ExpandedAbstracts of69thSEG AnnInternatMtg,1999
[24] HeggeR F.Seism ic m acrom odel estim ation by inver-sion of focusing operators.2000
[25] KabirM M N等著.用共聚焦点技术进行偏移速度分析.美国勘探地球物理学家学会第66届年会论文集,石油工业出版社,1997
[26] MortonS A等著.用共聚焦点道集进行自动叠前偏移分析.美国勘探地球物理学家学会第66届年会论文集,石油工业出版社,1997
[27] 张钋等.几类叠前深度偏移方法的研究现状.地球物理学进展,2000,15(2)
[28] 印兴耀等.地震波场的共偏移距延拓研究.地球物理学报,1999,42(2)
[29] 马在田等编著.计算地球物理学概论,同济大学出版社,1997
[2] BerkhoutA J.Pushing the limits of seism ic imaging,Part:Integration of prestack migration,velocityestim ation,andAVO analysis.Geophysics,1997,62(3):954～969
[3] JiJ.Controlled illumination by wavefront synthesis.SEP Report,1993,79:129～143
[4] BerkhoutA J.Areal shot record technology.JournalSeismicExploration,1992,(1):251～264
[5] ThorbeckeJ T.Com mon focus point technology.PhD thesis,DelftU niversity ofTechnology,1997
[6] BerkhoutA J&ThorbeckeJ.Evaluation of seism icim age quality—Part:Assessment of velocitymodels.ExpandedAbstracts of68thSEG AnnInternatMtg,1998
[7] BerkhoutA J.Seism ic inversion in steps.TheL ead-ingEdge,1999,933～939
[8] BerkhoutA J&OngkiehongL.Analysis of seism icacquisition geometries by focal beam s.ExpandedAbstracts of68thSEG AnnInternatMtg,1998
[9] BolteJ F B &VerschuurD J.Aspects of focusingoperator updating.ExpandedAbstracts of68thSEGAnnInternatMtg,1998,1604～1607
[10] HeggeR F,FokkemaJT &DuijndamA JW.U singfocusing operators to estim ate velocity m odels.ExpandedAbstracts of68thSEG AnnInternatMtg,1998
[11] Kelam isP G,BerkhoutA J,VerschuurD J&Ro-mijnR.Comm on focus point technology— anexample from theRedSea area ofSaudiArabia.Journal ofSeismicExploration,1998,7(3-4):393～402
[12] BerkhoutA J &VerschuurD J.Evaluation of seis-mic im age quality—Part:Assessment ofmigration algorithm s.ExpandedAbstracts of68thSEG AnnInternatMtg,1998
[13] BerkhoutA J.CFP technology,new opportunities inseism ic processing.ExpandedAbstracts of70 thSEGAnnInternatMtg,2000
[14] BolteJF B &VerschuurD J.U se of the focal pointmatrix forCFP operator traveltime estimation.ExpandedAbstracts of70 thSEG AnnInternatMtg,2000
[15] BolteJF B,VerschuurD J&HeggeR F.CFP oper-ator estim ation and inversion dem onstrated on a fielddata set—Part:operator updating.ExpandedAbstracts of69thSEG AnnInternatMtg,1999,1373～1376
[16] Hindriks(Kees)C O H.CFP approach to the nearsurface problem.Department ofAppliedEarthSciences,DelftUniversity,ResearchPlan1999～2001
[17] VerschuurD J&BerkhoutA J.Overview of surfaceand internal m ultiple rem oval strategies.2000OffshoreTechnologyConference held inHouston,Texas,May2000
[18] BerkhoutA J&VerschuurD J.Rem oval of internalmultiples.ExpandedAbstracts of69thSEG AnnInternatMtg,1999
[19] VerschuurD J&BerkhoutA J.CFP approach to in-ternal m ultiple rem oval:field data exam ples.ExpandedAbstracts of70 thSEG AnnInternatMtg,2000
[20] BerkhoutA J &VerschuurD J.CFP approach tomulti- com ponent imaging.ExpandedAbstracts of70 thSEG AnnInternatMtg,2000
[21] WinthaegenP &VerschuurD J.CFP technology ap-plied to time- lapse seismic m onitoring.TN O-N ITGIN FORMATION,May2001
[22] KabirM M N &VerschuurD J.A constrained para-metric inversion for velocity analysis based onCFPtechnology.Geophysics,2000,65(4):1210～1222
[23] HeggeR F,BolteJF B,Fokkem aJT &DuijndamA J W.CFP operator estim ation and inversiondem onstrated on a field data set—Part:velocityestim ation.ExpandedAbstracts of69thSEG AnnInternatMtg,1999
[24] HeggeR F.Seism ic m acrom odel estim ation by inver-sion of focusing operators.2000
[25] KabirM M N等著.用共聚焦点技术进行偏移速度分析.美国勘探地球物理学家学会第66届年会论文集,石油工业出版社,1997
[26] MortonS A等著.用共聚焦点道集进行自动叠前偏移分析.美国勘探地球物理学家学会第66届年会论文集,石油工业出版社,1997
[27] 张钋等.几类叠前深度偏移方法的研究现状.地球物理学进展,2000,15(2)
[28] 印兴耀等.地震波场的共偏移距延拓研究.地球物理学报,1999,42(2)
[29] 马在田等编著.计算地球物理学概论,同济大学出版社,1997
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