面向目标的合成曲面波叠前深度偏移及其应用
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摘要
面向目标的控制照明叠前深度偏移属于面炮偏移方法的一种特殊情况.通过对目标区域波场照射方向的控制,实现波场在目的层的最佳入射,提高目标区域成像质量.将目的层定义的目标合成算子外推到地表形成地表合成算子,应用地表合成算子进行波面源和记录的合成,最后通过地表合成算子的一系列旋转,实现旋转控制照明叠前深度偏移.本文系统阐述了面向目标的合成曲面波控制照明叠前深度偏移方法的基本原理和实现方法,通过数值模型试算验证了该方法的有效性,最后将其应用到某探区实际资料的处理中,并进行了实际资料的应用效果分析,总结了其在实际资料应用中的特点.
Target oriented controlled illumination pre-stack depth migration is one of the area shot migration methods.With controlling the directional of incident wave,we get the optimal illumination of target layers.Propagating the synthetic operator defined at the target layer to surface,we synthesized the area shot and records.After a series of rotation of the operator,we have realized the target oriented controlled illumination pre-stack depth migration.In this paper,the theory of target oriented curved-wave pre-stack depth migration method is fully illustrated.Numerical model test the validity of our method.We also applied to real data processing and analyzed the application result.Finally,we got some conclusion of the real data processing with this method.
Target oriented controlled illumination pre-stack depth migration is one of the area shot migration methods.With controlling the directional of incident wave,we get the optimal illumination of target layers.Propagating the synthetic operator defined at the target layer to surface,we synthesized the area shot and records.After a series of rotation of the operator,we have realized the target oriented controlled illumination pre-stack depth migration.In this paper,the theory of target oriented curved-wave pre-stack depth migration method is fully illustrated.Numerical model test the validity of our method.We also applied to real data processing and analyzed the application result.Finally,we got some conclusion of the real data processing with this method.
引文
[1]Berkhout,A.J.Areal shot-record technology[J].Journal ofSeismic Exploration,1992,1(2):251-264.
[2]Rietveld,W.E.,Berkhout,A.J.,and Wapenaar,C.P.Optimum seismic illumination of hydrocarbon reservoirs.Geophysics,1992,57(10),133-1345.
[3]孙成禹,杜世通.平面声波在粗糙界面上的反射特征研究[J].地球物理学报,2006,49(3):903-907.SUN Cheng-Yu,DU Shi-Tong.Reflection features of planaracoustic waves from rough interfaces[J].Chinese J.Geophys.(in Chinese),2006,49(3):903-907.
[4]云美厚,丁伟,杨凯.地震道空间分辨力研究[J].地球物理学进展,2005,20(3):741-746.Yun M H,Ding W,Yang K.Study on the spatial resolutionof seismic trace[J].Progress in Geophysics(in Chinese),2005,20(3):7411-746.
[5]赵天姿,王尚旭,宋炜.基于保角变换的连续介质偏移成像[J].地球物理学进展,2008,23(1):119-123.Zhao T Z,Wang S X,Song W.Migration of continuummodeling based on conformal transformation[J].Progress inGeophysics(in Chinese),2008,23(1):119-123.
[6]陈生昌,李佩,林晨.利用偏移进行视反射率估计的初步研究[J].地球物理学报,2009,52(1):233-238.Chen S C,Li P,Lin C.Preliminary study on apparentreflectivity estimation by migration[J].Chinese J.Geophys.(in Chinese),2009,52(1):233-238.
[7]杨敬磊,李振春,叶月明,潘雅婷.地震照明叠前深度偏移方法综述[J].地球物理学进展,2008,23(1):146-152.Yang J L,Li Z C,Ye Y M,Pan Y T.Review of seismicillumination pre-stack depth migration methods[J].Progressin Geophysics(in Chinese),2008,23(1):146-152.
[8]冯波,王华忠.三维偏移距平面波有限差分叠前时间偏移[J].地球物理学报,2011,54(11):2916-2925.Feng B,Wang H Z.3Doffset plane-wave finite-difference pre-stack time migration[J].Chinese J.Geophys.(in Chinese),2011,54(11):2916-2925.
[9]管路平,唐亚勋,王华忠.共偏移距道集平面波叠前时间偏移与反偏移[J].地球物理学报,2009,52(5):1301-1309.Guan L P,Tang Y X,Wang H Z.Common-offset plane-waveprestack time migration and demigration[J].Chinese J.Geophys.(in Chinese),2009,52(5):1301-1309.
[10]张叔伦,孙沛勇.基于平面波合成的傅里叶有限差分叠前深度偏移[J].石油地球物理勘探,1999,34(1):1-7.Zhang S L,Sun P.Y.Fourier finite-difference prestackdepth migration based on plane wave synthesis[J].Petroleum Geophysical Prospecting,34(1):1-7.
[11]陈生昌,马在田.广义地震数据合成及其偏移成像[J].地球物理学报,2006,49(4):1144-1149.Chen S C,Ma Z T.Generalized synthesis of seismic data andits migration[J].Chinese J.Geophys.(in Chinese),2006,49(4):1144-1149.
[12]陈生昌,王汉闯.基于平面波照明的偏移成像补偿[J].地球物理学报,2010,53(7):1710-1715.Chen S C,Wang H C.Migration compensation with planewave illumination[J].Chinese J.Geophys.(in Chinese),2010,53(7):1710-1715.
[13]陈生昌,曹景忠,马在田.叠前数据的平面波深度偏移方法[J].地球物理学报,2003,46(6):1176-1185.Chen S C,Cao J Z,Ma Z T.A plane wave depth migrationmethod for pre-stack seismic data[J].Chinese J.Geophys.(in Chinese),2003,46(6):1176-1185.
[14]陈生昌,曹景忠,马在田.平面波偏移[J].勘探地球物理进展,2002,25(3):37-41.Chen S C,Cao J Z,Ma Z T.Plane wave migration[J].Progress in Exploration Geophysics,2002,25(3),37-41.
[15]韩利,韩立国,巩向博,等.TTI介质隐式有限差分平面波偏移[J]地球物理学报,2011,54(4):1090-1097.Han L,Han L G,Gong X B,et al.Implicit finite-differenceplane plane wave migration in TTI Media[J].Chinese J.Geophys.(in Chinese),2011,54(11):1090-1097.
[16]赵景霞,张叔伦,孙沛勇,等.三维并行合成震源记录叠前深度偏移[J].地球物理学报,2006,49(1):225-233.Zhao J X,Zhang S L,Sun P Y,et al.3-D parallel prestackdepth migration of synthetic source records[J].Chinese J.Geophys.(in Chinese),2006,49(1),225-233.
[17]叶月明,李振春,仝兆岐,安琪.起伏地表条件下的合成平面波偏移及其并行实现[J].石油地球物理勘探,2007,42(6):622-628.Ye Y M,Li Z C,Tong Z Q,An Q.Synthetical plane wavemigration and parallel realization in the condition of ruggedsurface[J].Oil Geophysical Prospecting,2007,42(6):622-628.
[18]冯伟,吴如山,马在田.单向传播子的局部平面波分解以及在定向照明分析和目标特征成像中的应用[J].地球物理学进展,2007,22(1):171-178.Feng W,Ww R S,Ma Z T.Local plane wave decompositionof one-way propagator and the applications to directionalillumination analysis and target-structure oriented imaging[J].Progress in Geophysics(in Chinese),2007,22(1):171-178.
[19]王昌龙,张叔伦,赵景霞,杨其强.基于控制照明的合成震源记录交互剩余偏移速度分析[J].地球物理学报,2007,50(3):860-867.Wang C_L,Zhang S_L,Zhao J_X,Yang Q Q.Syntheticsource record interactive residual migration velocity analysisbased on controlled illumination[J].Chinese J.Geophys.(inChinese),2007,50(3):860-867.
[20]马继涛,Mrinal K.Sen,陈小宏.平面波域反数据处理压制多次波方法研究[J].地球物理学报,2009,52(3):808-816.Ma J T,Mrinal K.Sen,Chen X H.Multiple attenuationusing inverse data processing in the plane-wave domain[J].Chinese J.Geophys.(in Chinese),2009,52(3):808-816.
[21]Rietveld,W.E.,and Berkhout,A.J.Prestack depth migrationby means of controlled illumination.Geophysics,1994,59(5),801-809.
[22]冯伟,王华忠,吴如山,马在田.面向目标控制照明的合成波源偏移[J].石油物探,2004,43(3):223-228.Feng W,Wang H Z,Wu R S,and Ma Z T.The migration ofsynthetic waves for target-oriented controlled illumination[J].Geophysical Prospection for Petroleum,2004,43(3),223-228.
[23]陈秀梅,王华忠,马在田多地质日标地表控制照明叠前深度偏移[J].石油地球物理勘探,2003,38(5):507-511.Chen X M,Wang H Z,Ma Z T.Prestack depth migration bysurface controlled illumination of multi-geologic target[J].Oil Geophysical Prospecting,2003,38(5):507-511.
[24]陈秀梅,王华忠,程玖兵,陈生昌,马在田,胡中标.地表旋转控制照明叠前深度偏移[J].地球物理学报,2004,47(1):306-311.Chen X M,Wang H Z,Chen J B,Chen S C,Ma Z T,andHu,Z B.Prestack depth migration by surface rotationcontrolled illumination[J].Chinese J.Geophys.(inChinese),2004,47(2),342-349.
[25]Chen X M,Ma Z T,Nie G H,and Wang H Z.Target-oriented curved-wave prestack depth migration by controlledillumination[J].Geophysics,2009,74(4),S95-S104.
[2]Rietveld,W.E.,Berkhout,A.J.,and Wapenaar,C.P.Optimum seismic illumination of hydrocarbon reservoirs.Geophysics,1992,57(10),133-1345.
[3]孙成禹,杜世通.平面声波在粗糙界面上的反射特征研究[J].地球物理学报,2006,49(3):903-907.SUN Cheng-Yu,DU Shi-Tong.Reflection features of planaracoustic waves from rough interfaces[J].Chinese J.Geophys.(in Chinese),2006,49(3):903-907.
[4]云美厚,丁伟,杨凯.地震道空间分辨力研究[J].地球物理学进展,2005,20(3):741-746.Yun M H,Ding W,Yang K.Study on the spatial resolutionof seismic trace[J].Progress in Geophysics(in Chinese),2005,20(3):7411-746.
[5]赵天姿,王尚旭,宋炜.基于保角变换的连续介质偏移成像[J].地球物理学进展,2008,23(1):119-123.Zhao T Z,Wang S X,Song W.Migration of continuummodeling based on conformal transformation[J].Progress inGeophysics(in Chinese),2008,23(1):119-123.
[6]陈生昌,李佩,林晨.利用偏移进行视反射率估计的初步研究[J].地球物理学报,2009,52(1):233-238.Chen S C,Li P,Lin C.Preliminary study on apparentreflectivity estimation by migration[J].Chinese J.Geophys.(in Chinese),2009,52(1):233-238.
[7]杨敬磊,李振春,叶月明,潘雅婷.地震照明叠前深度偏移方法综述[J].地球物理学进展,2008,23(1):146-152.Yang J L,Li Z C,Ye Y M,Pan Y T.Review of seismicillumination pre-stack depth migration methods[J].Progressin Geophysics(in Chinese),2008,23(1):146-152.
[8]冯波,王华忠.三维偏移距平面波有限差分叠前时间偏移[J].地球物理学报,2011,54(11):2916-2925.Feng B,Wang H Z.3Doffset plane-wave finite-difference pre-stack time migration[J].Chinese J.Geophys.(in Chinese),2011,54(11):2916-2925.
[9]管路平,唐亚勋,王华忠.共偏移距道集平面波叠前时间偏移与反偏移[J].地球物理学报,2009,52(5):1301-1309.Guan L P,Tang Y X,Wang H Z.Common-offset plane-waveprestack time migration and demigration[J].Chinese J.Geophys.(in Chinese),2009,52(5):1301-1309.
[10]张叔伦,孙沛勇.基于平面波合成的傅里叶有限差分叠前深度偏移[J].石油地球物理勘探,1999,34(1):1-7.Zhang S L,Sun P.Y.Fourier finite-difference prestackdepth migration based on plane wave synthesis[J].Petroleum Geophysical Prospecting,34(1):1-7.
[11]陈生昌,马在田.广义地震数据合成及其偏移成像[J].地球物理学报,2006,49(4):1144-1149.Chen S C,Ma Z T.Generalized synthesis of seismic data andits migration[J].Chinese J.Geophys.(in Chinese),2006,49(4):1144-1149.
[12]陈生昌,王汉闯.基于平面波照明的偏移成像补偿[J].地球物理学报,2010,53(7):1710-1715.Chen S C,Wang H C.Migration compensation with planewave illumination[J].Chinese J.Geophys.(in Chinese),2010,53(7):1710-1715.
[13]陈生昌,曹景忠,马在田.叠前数据的平面波深度偏移方法[J].地球物理学报,2003,46(6):1176-1185.Chen S C,Cao J Z,Ma Z T.A plane wave depth migrationmethod for pre-stack seismic data[J].Chinese J.Geophys.(in Chinese),2003,46(6):1176-1185.
[14]陈生昌,曹景忠,马在田.平面波偏移[J].勘探地球物理进展,2002,25(3):37-41.Chen S C,Cao J Z,Ma Z T.Plane wave migration[J].Progress in Exploration Geophysics,2002,25(3),37-41.
[15]韩利,韩立国,巩向博,等.TTI介质隐式有限差分平面波偏移[J]地球物理学报,2011,54(4):1090-1097.Han L,Han L G,Gong X B,et al.Implicit finite-differenceplane plane wave migration in TTI Media[J].Chinese J.Geophys.(in Chinese),2011,54(11):1090-1097.
[16]赵景霞,张叔伦,孙沛勇,等.三维并行合成震源记录叠前深度偏移[J].地球物理学报,2006,49(1):225-233.Zhao J X,Zhang S L,Sun P Y,et al.3-D parallel prestackdepth migration of synthetic source records[J].Chinese J.Geophys.(in Chinese),2006,49(1),225-233.
[17]叶月明,李振春,仝兆岐,安琪.起伏地表条件下的合成平面波偏移及其并行实现[J].石油地球物理勘探,2007,42(6):622-628.Ye Y M,Li Z C,Tong Z Q,An Q.Synthetical plane wavemigration and parallel realization in the condition of ruggedsurface[J].Oil Geophysical Prospecting,2007,42(6):622-628.
[18]冯伟,吴如山,马在田.单向传播子的局部平面波分解以及在定向照明分析和目标特征成像中的应用[J].地球物理学进展,2007,22(1):171-178.Feng W,Ww R S,Ma Z T.Local plane wave decompositionof one-way propagator and the applications to directionalillumination analysis and target-structure oriented imaging[J].Progress in Geophysics(in Chinese),2007,22(1):171-178.
[19]王昌龙,张叔伦,赵景霞,杨其强.基于控制照明的合成震源记录交互剩余偏移速度分析[J].地球物理学报,2007,50(3):860-867.Wang C_L,Zhang S_L,Zhao J_X,Yang Q Q.Syntheticsource record interactive residual migration velocity analysisbased on controlled illumination[J].Chinese J.Geophys.(inChinese),2007,50(3):860-867.
[20]马继涛,Mrinal K.Sen,陈小宏.平面波域反数据处理压制多次波方法研究[J].地球物理学报,2009,52(3):808-816.Ma J T,Mrinal K.Sen,Chen X H.Multiple attenuationusing inverse data processing in the plane-wave domain[J].Chinese J.Geophys.(in Chinese),2009,52(3):808-816.
[21]Rietveld,W.E.,and Berkhout,A.J.Prestack depth migrationby means of controlled illumination.Geophysics,1994,59(5),801-809.
[22]冯伟,王华忠,吴如山,马在田.面向目标控制照明的合成波源偏移[J].石油物探,2004,43(3):223-228.Feng W,Wang H Z,Wu R S,and Ma Z T.The migration ofsynthetic waves for target-oriented controlled illumination[J].Geophysical Prospection for Petroleum,2004,43(3),223-228.
[23]陈秀梅,王华忠,马在田多地质日标地表控制照明叠前深度偏移[J].石油地球物理勘探,2003,38(5):507-511.Chen X M,Wang H Z,Ma Z T.Prestack depth migration bysurface controlled illumination of multi-geologic target[J].Oil Geophysical Prospecting,2003,38(5):507-511.
[24]陈秀梅,王华忠,程玖兵,陈生昌,马在田,胡中标.地表旋转控制照明叠前深度偏移[J].地球物理学报,2004,47(1):306-311.Chen X M,Wang H Z,Chen J B,Chen S C,Ma Z T,andHu,Z B.Prestack depth migration by surface rotationcontrolled illumination[J].Chinese J.Geophys.(inChinese),2004,47(2),342-349.
[25]Chen X M,Ma Z T,Nie G H,and Wang H Z.Target-oriented curved-wave prestack depth migration by controlledillumination[J].Geophysics,2009,74(4),S95-S104.
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