双参数展开CRP叠加和速度分析方法研究
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摘要
椭圆展开共反射点(CRP)方法可以获得比常规倾角时差校正(DMO)方法更近似的零偏移距时间剖面和相应CRP速度场.大量研究和实践证实,在非均质性较弱的地区,该方法取得的成果显著.但由于该方法没有考虑速度的横向变化和转换波等情况,当地下介质存在较强非均质性时,该方法不再准确,需要引进反映速度横向变化的双参数(上行波与下行波的平均速度和速度比)进行改进.本文详细推导了引入双参数后的叠加和速度分析算法,并通过数值模型和地震资料处理证实,修正后的算法可以更好地解决地质复杂地区速度建模和叠加成像问题.
We can get more accurate zero-offset section and corresponding CRP velocity field by ellipse evolving common reflection point(CRP)than by conventional dip moveout(DMO).Many studies and tests confirm that its effect is remarkable in weakly heterogeneous media area. However,it does not take transverse changes of velocity and converted waves into account. When the media is strongly heterogeneous,the method is not exact any longer.We introduce dual parameters (average velocity and velocity ratio of up-going wave velocity and down-going wave velocity) which reveal transverse changes of velocity to optimize ellipse evolving CRP stack. This paper reasons out detailed stack and velocity estimation arithmetic with dual parameters.By using theoretical model and seismic data processing,optimized arithmetic can more ideally solve the questions of velocity modeling and stack imaging in complex geology area.
We can get more accurate zero-offset section and corresponding CRP velocity field by ellipse evolving common reflection point(CRP)than by conventional dip moveout(DMO).Many studies and tests confirm that its effect is remarkable in weakly heterogeneous media area. However,it does not take transverse changes of velocity and converted waves into account. When the media is strongly heterogeneous,the method is not exact any longer.We introduce dual parameters (average velocity and velocity ratio of up-going wave velocity and down-going wave velocity) which reveal transverse changes of velocity to optimize ellipse evolving CRP stack. This paper reasons out detailed stack and velocity estimation arithmetic with dual parameters.By using theoretical model and seismic data processing,optimized arithmetic can more ideally solve the questions of velocity modeling and stack imaging in complex geology area.
引文
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[2] Zhang Y,Bergler S,Hubral P.Common-reflection surface(CRS)stack for common offset.Geophysical Prospecting,1998,46(4) :423～440
[3] lager R,Mann J,Hocht G,et al.Common-reflection-surface stack:Image and attributes.Geophysics,2001,66(1) :97～109
[4] Hertweck T J,Schleicher J,MANN.Data stacking beyond CMP.The Leading Edge,2007,7:818～827
[5] 杨锴,许士勇,王华忠等.倾角分解共反射面元叠加方法.地球物理学报,2005,48(5) :1148～1155 Yang K,Xu S Y,Wang H Z,et al.A method of dip decomposition common reflection surface stack.Chinese J.Geophys.(in Chinese),2005,48(5) :1148～1155
[6] 杨锴,马在田.输出道成像方式的共反射面元叠加方法I--理论.地球物理学报,2006,49(2) :546～553 Yang K,Ma Z T.Common reflection surface stack by an output imaging scheme.Chinese J.Geophys.(in Chinese),2006,49(2) :546～553
[7] 杨锴,马在田,罗卫东.输出道方式的共反射面元叠加方法Ⅱ--实践.地球物理学报,2006,49(3) :895～902 Yang K,Ma Z T,Luo W D.Common reflection surface stack by the outplanat Ⅱ:Practice.Chinese J.Geophys.(in Chinese),2006,49(3) :895～902
[8] 杨锴,马在田.关于共反射面元叠加方法在实际应用中的一些思考.地球物理学进展,2005,20(1) :12～16 Yang K,Ma Z T.Some thoughts on common reflection surface stack in practice.Progress in Geophysics(in Chinese),2005,20(1) :12～16
[9] 李振春,孙小东,刘 洪.复杂地表条件下共反射面元(CRS)叠加方法研究.地球物理学报,2006,49(6) :1794～1801 Li Z C,Sun X D,Liu H.Common reflection surface stack for rugged surface topography.Chinese J.Geophys.(in Chinese),2006,49(6) :1794～1801
[10] 覃 天.共反射面叠加及其波场属性在地震资料处理中的应用研究[博士学位论文].北京:中国地质大学,2007 Qin T.Research and application of common reflection surface stack and its attributes in seismic data processing [Ph.D:thesis].Beijing:China University of Geosciences,2007
[11] Gelchinsky B,Berkovitch A.Multifocusing homeomorphic imaging,Part 1． Basic concepts and formulas.Journal of Applied Geophysics,1999,42(3-4) :229～242
[12] Gelchinsky B,Berkovitch A.Multifocusing homeomorphic imaging,Part 2． Multifold data set and multifocusing.Journal of Applied Geophysics,1999,42(3-4) :243～260
[13] Tsvankin I,Thomsen L.Nonhyerbolie reflection moveout in anisotropic media.Geophysics,1994,59:1290～1304
[14] 尤建军,常旭,刘伊克.VTI介质长偏移距非双曲动校正公式优化.地球物理学报,2006,49(6) :1770～1778 You J J,Chang X,Liu Y K.Optimization of nonhyperbolic moveout correction equation of long-offset seismic data in VTI media.Chinese J.Geophys.(in Chinese),2006,49(6) :1770～1778
[15] 陈雨红,魏修成.垂向非均匀介质中转换波转换点计算.地球物理学报,2007,50(4) :1225～1231 Chen Y H,Wei X C.Conversion points of converted wave in vertical inhomogeneous media.Chinese J.Geophys.(in Chinese),2007,50(4) :1225～1231
[16] 赵爱华,张美根,丁志峰.横向各向同性介质中地震波走时模拟.地球物理学报,2006,49(6) :1762～1769 Zhao A H,Zhang M G,Ding Z F.Seismic traveltime computation for transversely isotropic media.Chinese J.Geophys.(in Chinese),2006,49(6) :1762～1769
[17] 伊尔马兹.地震资料分析地震资料处理、反演和解释.刘怀山等译.北京:石油工业出版社,2006 YilmazZ.Seismic Data Analysis:Processing,Inversion and Interpretation of Seismic Data(in Chinese).Translated by LIU Huai Shan et al Beijing:Petroleum Industry Press,2006
[18] #12
[19] #12
[20] Hale D.Dip moveout by Fourier transform.Geophysics,1984,49(6) :741～757
[21] Derigovski S M,Rocca F.Geometrical optics and wave theory of constant offset sections in layered media.Geophysical Prospecting,1981,29:374～406
[22] 周青春,刘怀山,Kondrashkov V V,等.椭圆展开共反射点叠加方法的应用研究.地球物理学报,2009,52(1) :222～232 Zhou Q C,Liu H S,Kondrashkov V V,et al.Research and application of ellipse evolving common reflection point stack method.Chinese J.Geophys.(in Chinese),2009,52(1) :222～232
[23] #12
[24] Kondrashkov V V,Aniskovich E M.Basic principles of parametric evolvement of signal method(PRO)as universal
technique of seismic data processing.Physics of the Earth,1998,2:46～64
[25] #12
[26] #12
[27] Zhou Q C,Liu H S,Kondrashkov V V,et al.Ellipse evolving common reflection point velocity analysis and its application to oil and gas detection.Journal of Geophysics and Engineering,2009,6:53～60
[28] 周青春,林依华,李国都.一种新的油气检测方法--参数展开CRP速度分析方法.CPS/SEG北京2009国际地球物理会议暨展览收录,2009,ID:1223 Zhou Q C,LinY H,Li G D.A new method of oil and gas detection-parameter evolving common reflection point velocity analysis. CPS/SEG Beijing 2009 International Geophysical Conference & Exposition,2009,ID:1223
[29] 许士勇,马在田.快速有效的转换波共转换点叠加技术.地球物理学报,2002,45(4) :557～568 Xu S Y,Ma Z T.A fast and efficient common conversion point stacking technique for converted waves.Chinese J.Geophys.(in Chinese),2002,45(4) :557～568
[2] Zhang Y,Bergler S,Hubral P.Common-reflection surface(CRS)stack for common offset.Geophysical Prospecting,1998,46(4) :423～440
[3] lager R,Mann J,Hocht G,et al.Common-reflection-surface stack:Image and attributes.Geophysics,2001,66(1) :97～109
[4] Hertweck T J,Schleicher J,MANN.Data stacking beyond CMP.The Leading Edge,2007,7:818～827
[5] 杨锴,许士勇,王华忠等.倾角分解共反射面元叠加方法.地球物理学报,2005,48(5) :1148～1155 Yang K,Xu S Y,Wang H Z,et al.A method of dip decomposition common reflection surface stack.Chinese J.Geophys.(in Chinese),2005,48(5) :1148～1155
[6] 杨锴,马在田.输出道成像方式的共反射面元叠加方法I--理论.地球物理学报,2006,49(2) :546～553 Yang K,Ma Z T.Common reflection surface stack by an output imaging scheme.Chinese J.Geophys.(in Chinese),2006,49(2) :546～553
[7] 杨锴,马在田,罗卫东.输出道方式的共反射面元叠加方法Ⅱ--实践.地球物理学报,2006,49(3) :895～902 Yang K,Ma Z T,Luo W D.Common reflection surface stack by the outplanat Ⅱ:Practice.Chinese J.Geophys.(in Chinese),2006,49(3) :895～902
[8] 杨锴,马在田.关于共反射面元叠加方法在实际应用中的一些思考.地球物理学进展,2005,20(1) :12～16 Yang K,Ma Z T.Some thoughts on common reflection surface stack in practice.Progress in Geophysics(in Chinese),2005,20(1) :12～16
[9] 李振春,孙小东,刘 洪.复杂地表条件下共反射面元(CRS)叠加方法研究.地球物理学报,2006,49(6) :1794～1801 Li Z C,Sun X D,Liu H.Common reflection surface stack for rugged surface topography.Chinese J.Geophys.(in Chinese),2006,49(6) :1794～1801
[10] 覃 天.共反射面叠加及其波场属性在地震资料处理中的应用研究[博士学位论文].北京:中国地质大学,2007 Qin T.Research and application of common reflection surface stack and its attributes in seismic data processing [Ph.D:thesis].Beijing:China University of Geosciences,2007
[11] Gelchinsky B,Berkovitch A.Multifocusing homeomorphic imaging,Part 1． Basic concepts and formulas.Journal of Applied Geophysics,1999,42(3-4) :229～242
[12] Gelchinsky B,Berkovitch A.Multifocusing homeomorphic imaging,Part 2． Multifold data set and multifocusing.Journal of Applied Geophysics,1999,42(3-4) :243～260
[13] Tsvankin I,Thomsen L.Nonhyerbolie reflection moveout in anisotropic media.Geophysics,1994,59:1290～1304
[14] 尤建军,常旭,刘伊克.VTI介质长偏移距非双曲动校正公式优化.地球物理学报,2006,49(6) :1770～1778 You J J,Chang X,Liu Y K.Optimization of nonhyperbolic moveout correction equation of long-offset seismic data in VTI media.Chinese J.Geophys.(in Chinese),2006,49(6) :1770～1778
[15] 陈雨红,魏修成.垂向非均匀介质中转换波转换点计算.地球物理学报,2007,50(4) :1225～1231 Chen Y H,Wei X C.Conversion points of converted wave in vertical inhomogeneous media.Chinese J.Geophys.(in Chinese),2007,50(4) :1225～1231
[16] 赵爱华,张美根,丁志峰.横向各向同性介质中地震波走时模拟.地球物理学报,2006,49(6) :1762～1769 Zhao A H,Zhang M G,Ding Z F.Seismic traveltime computation for transversely isotropic media.Chinese J.Geophys.(in Chinese),2006,49(6) :1762～1769
[17] 伊尔马兹.地震资料分析地震资料处理、反演和解释.刘怀山等译.北京:石油工业出版社,2006 YilmazZ.Seismic Data Analysis:Processing,Inversion and Interpretation of Seismic Data(in Chinese).Translated by LIU Huai Shan et al Beijing:Petroleum Industry Press,2006
[18] #12
[19] #12
[20] Hale D.Dip moveout by Fourier transform.Geophysics,1984,49(6) :741～757
[21] Derigovski S M,Rocca F.Geometrical optics and wave theory of constant offset sections in layered media.Geophysical Prospecting,1981,29:374～406
[22] 周青春,刘怀山,Kondrashkov V V,等.椭圆展开共反射点叠加方法的应用研究.地球物理学报,2009,52(1) :222～232 Zhou Q C,Liu H S,Kondrashkov V V,et al.Research and application of ellipse evolving common reflection point stack method.Chinese J.Geophys.(in Chinese),2009,52(1) :222～232
[23] #12
[24] Kondrashkov V V,Aniskovich E M.Basic principles of parametric evolvement of signal method(PRO)as universal
technique of seismic data processing.Physics of the Earth,1998,2:46～64
[25] #12
[26] #12
[27] Zhou Q C,Liu H S,Kondrashkov V V,et al.Ellipse evolving common reflection point velocity analysis and its application to oil and gas detection.Journal of Geophysics and Engineering,2009,6:53～60
[28] 周青春,林依华,李国都.一种新的油气检测方法--参数展开CRP速度分析方法.CPS/SEG北京2009国际地球物理会议暨展览收录,2009,ID:1223 Zhou Q C,LinY H,Li G D.A new method of oil and gas detection-parameter evolving common reflection point velocity analysis. CPS/SEG Beijing 2009 International Geophysical Conference & Exposition,2009,ID:1223
[29] 许士勇,马在田.快速有效的转换波共转换点叠加技术.地球物理学报,2002,45(4) :557～568 Xu S Y,Ma Z T.A fast and efficient common conversion point stacking technique for converted waves.Chinese J.Geophys.(in Chinese),2002,45(4) :557～568
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