多波多分量地震资料速度扫描法转换波识别技术
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摘要
多波多分量地震勘探得到的资料波场信息丰富,从中可以得到转换波信息。提出了一种速度扫描方法分离多波多分量资料中的纵波和转换波。该方法根据纵波速度及其自激自收时间,推导出相应的横波速度表达式;通过横波速度扫描,得到一系列转换波时距曲线;用得到的转换波时距曲线与多波地震数据作互相关匹配,相关程度最大时扫描横波速度最准确,也就得到了最佳的转换波波形,进而达到分离纵波和转换波的目的。利用该方法对数值模拟地震记录进行了转换波识别,取得了很好的波场分离效果。
The data acquired by multi-wave multi-component seismic exploration involves abundant wavefield information,which can be used for obtaining the information of P-SV wave.We proposed a velocity scanning method to separate the P-wave and P-SV wave from multi-wave multi-component data.In terms of P-wave velocity and zero-offset time,we derive the corresponding S-wave velocity expression.By S-wave velocity scanning,a series of P-SV time-distance curve is obtained.Then the P-SV time-distance curve is proceeded correlation match with multi-wave seismic data.When the correlation degree reaches to the maximum,the scanned S-wave velocity is most accurate,and then the best P-SV waveform is obtained,therefore,the P-wave and P-SV wave can be separated.The method is applied on the identification of P-SV wave in numerical simulated seismic records and achieves good wavefield separation result.
The data acquired by multi-wave multi-component seismic exploration involves abundant wavefield information,which can be used for obtaining the information of P-SV wave.We proposed a velocity scanning method to separate the P-wave and P-SV wave from multi-wave multi-component data.In terms of P-wave velocity and zero-offset time,we derive the corresponding S-wave velocity expression.By S-wave velocity scanning,a series of P-SV time-distance curve is obtained.Then the P-SV time-distance curve is proceeded correlation match with multi-wave seismic data.When the correlation degree reaches to the maximum,the scanned S-wave velocity is most accurate,and then the best P-SV waveform is obtained,therefore,the P-wave and P-SV wave can be separated.The method is applied on the identification of P-SV wave in numerical simulated seismic records and achieves good wavefield separation result.
引文
[1]冯晅,张先武,刘财,等.带有多道相关的抛物线Ra-don变换法分离P-P,P-SV波[J].地球物理学报,2011,54(2):304-309Feng X,Zhang X W,Liu C,et al.Separating P-P andP-SV wave by parabolic Radon transform with mul-tiple coherence[J].Chinese Journal of Geophysics,2011,54(2):304-309
[2]程冰洁,徐天吉.转换波资料在川西坳陷储层预测中的应用[J].石油物探,2009,48(2):181-186Chen B J,Xu T J.Application of converted wave da-ta in reservoir prediction for Cuanxi depression[J].Geophysical Prospecting for Petroleum,2009,48(2):181-186
[3]黄中玉.多分量勘探技术[J].勘探地球物理进展,2003,26(5-6):413-422Huang Z Y.Advances in multi-component seismictechnology[J].Progress Exploration Geophysics,2003,26(5-6):413-422
[4]李国发,彭苏萍,何兵寿,等.转换波地震资料处理的关键问题与解决方法[J].中国矿业大学学报,2005,34(1):41-45Li G F,Peng S P,He B,et al.Key problems and so-lutions in processing converted-wave seismic data[J].Journal of China University of Mining&Tech-nology,2005,34(1):41-45
[5]赵波,王斌,芦俊.多分量地震勘探技术新进展及关键问题探讨[J].石油地球物理勘探,2012,47(3):506-516Zhao B,Wang B,Lu J.Recent advances of multi-component seismic and some of its key issues[J].OilGeophysical Prospecting,2012,47(3):506-516
[6]马昭军,唐建明,徐天吉.多波多分量地震勘探技术研究进展[J].勘探地球物理进展,2010,33(4):247-253Ma Z J,Tang J M,Xu T J.Progress on multi-waveand multi-component seismic exploration[J].Pro-gress Exploration Geophysics,2010,33(4):247-253
[7]曾有良,乐友喜,单启铜.基于高分辨率Radon变换的VSP波场分离方法[J].石油物探,2007,46(2):115-119Zeng Y L,Le Y X,Shan Q T.Wave field separationof VSP data based on high-resolution radon trans-form[J].Geophysical Prospecting for Petroleum,2007,46(2):115-119
[8]雷云山,石福升,王典,等.多波地震勘探中P-SV波的识别技术[J].吉林大学学报,2007,37(增刊):40-44Lei Y S,Shi F S,Wang D,et al.The technology of i-dentifying P-SV wave in multi-wave seismic survey[J].Journal of Jilin University(Earth Science Edi-tion),2007,37(S):40-44
[9]张关泉,周洪波.地面记录的纵、横波分离[J].勘探地球物理进展,1995,30(2):181-191Zhang G Q,Zhou H B.P and S wave separation ofsurface records[J].Progress Exploration Geophys-ics,1995,30(2):181-191
[10]龚雪萍,陈双全,李向阳.改进纵波与转换波时间匹配方法研究[J].石油地球物理勘探,2012,47(5):698-704Gong X P,Chen S Q,Li X Y.An improved methodfor P-P and P-SV wave time matching[J].Oil Geo-physical Prospecting,2012,47(5):698-704
[11]陈双全,王尚旭,李向阳.P-SV与P-P波的时间匹配[J].石油地球物理勘探,2010,45(4):497-501Chen S Q,Wang S X,Li X Y.Time matching be-tween P-SV wave and P-P wave[J].Oil GeophysicalProspecting,2010,45(4):497-501
[12]付雷,王建民,许红,等.纵波和转换波联合反演技术在松辽盆地北部LMD地区的应用[J].石油物探,2009,48(6):563-567Fu L,Wang J M,Xu H,et al.Application of P-waveand PS-wave jointed inversion in LMD area of north-ern Songliao Basin[J].Geophysical Prospecting forPetroleum,2009,48(6):563-567
[13]付雷,王建民,许红,等.三维三分量地震资料联合反演方法应用研究[J].石油地球物理勘探,2013,48(1):77-82Fu L,Wang J M,Xu H,et al.3D3Cseismic joint in-version applications[J].Oil Geophysical Prospec-ting,2013,48(1):77-82
[14]陈天胜,刘洋,魏修成.纵波和转换波联合AVO反演方法研究[J].中国石油大学学报,2006,30(1):33-37Chen T S,Liu Y,Wei X C.Joint amplitude versusoffset inversion of P-P and P-SV seismic data[J].Journal of China University of Petroleum,2006,30(1):33-37
[15]张明,韩大匡,姚逢昌,等.转换波成像方法综述[J].石油物探,2006,45(5):553-556Zhang M,Han D K,Yao F C,et al.An overview a-bout converted-wave imaging method[J].Geophysi-cal Prospecting for Petroleum,2006,45(5):553-556
[16]Dankbaar J W M.Separation of P-and S-waves[J].Geophysical Prospecting,1985,33(7):970-986
[17]刘洋.反射波分式展开时距方程及其精度分析[J].石油物探,2003,42(4):441-447Liu Y.Fraction expansion time-distance equation ofreflection wave and its accuracy analysis[J].Geo-physical Prospecting for Petroleum,2003,42(4):441-447
[2]程冰洁,徐天吉.转换波资料在川西坳陷储层预测中的应用[J].石油物探,2009,48(2):181-186Chen B J,Xu T J.Application of converted wave da-ta in reservoir prediction for Cuanxi depression[J].Geophysical Prospecting for Petroleum,2009,48(2):181-186
[3]黄中玉.多分量勘探技术[J].勘探地球物理进展,2003,26(5-6):413-422Huang Z Y.Advances in multi-component seismictechnology[J].Progress Exploration Geophysics,2003,26(5-6):413-422
[4]李国发,彭苏萍,何兵寿,等.转换波地震资料处理的关键问题与解决方法[J].中国矿业大学学报,2005,34(1):41-45Li G F,Peng S P,He B,et al.Key problems and so-lutions in processing converted-wave seismic data[J].Journal of China University of Mining&Tech-nology,2005,34(1):41-45
[5]赵波,王斌,芦俊.多分量地震勘探技术新进展及关键问题探讨[J].石油地球物理勘探,2012,47(3):506-516Zhao B,Wang B,Lu J.Recent advances of multi-component seismic and some of its key issues[J].OilGeophysical Prospecting,2012,47(3):506-516
[6]马昭军,唐建明,徐天吉.多波多分量地震勘探技术研究进展[J].勘探地球物理进展,2010,33(4):247-253Ma Z J,Tang J M,Xu T J.Progress on multi-waveand multi-component seismic exploration[J].Pro-gress Exploration Geophysics,2010,33(4):247-253
[7]曾有良,乐友喜,单启铜.基于高分辨率Radon变换的VSP波场分离方法[J].石油物探,2007,46(2):115-119Zeng Y L,Le Y X,Shan Q T.Wave field separationof VSP data based on high-resolution radon trans-form[J].Geophysical Prospecting for Petroleum,2007,46(2):115-119
[8]雷云山,石福升,王典,等.多波地震勘探中P-SV波的识别技术[J].吉林大学学报,2007,37(增刊):40-44Lei Y S,Shi F S,Wang D,et al.The technology of i-dentifying P-SV wave in multi-wave seismic survey[J].Journal of Jilin University(Earth Science Edi-tion),2007,37(S):40-44
[9]张关泉,周洪波.地面记录的纵、横波分离[J].勘探地球物理进展,1995,30(2):181-191Zhang G Q,Zhou H B.P and S wave separation ofsurface records[J].Progress Exploration Geophys-ics,1995,30(2):181-191
[10]龚雪萍,陈双全,李向阳.改进纵波与转换波时间匹配方法研究[J].石油地球物理勘探,2012,47(5):698-704Gong X P,Chen S Q,Li X Y.An improved methodfor P-P and P-SV wave time matching[J].Oil Geo-physical Prospecting,2012,47(5):698-704
[11]陈双全,王尚旭,李向阳.P-SV与P-P波的时间匹配[J].石油地球物理勘探,2010,45(4):497-501Chen S Q,Wang S X,Li X Y.Time matching be-tween P-SV wave and P-P wave[J].Oil GeophysicalProspecting,2010,45(4):497-501
[12]付雷,王建民,许红,等.纵波和转换波联合反演技术在松辽盆地北部LMD地区的应用[J].石油物探,2009,48(6):563-567Fu L,Wang J M,Xu H,et al.Application of P-waveand PS-wave jointed inversion in LMD area of north-ern Songliao Basin[J].Geophysical Prospecting forPetroleum,2009,48(6):563-567
[13]付雷,王建民,许红,等.三维三分量地震资料联合反演方法应用研究[J].石油地球物理勘探,2013,48(1):77-82Fu L,Wang J M,Xu H,et al.3D3Cseismic joint in-version applications[J].Oil Geophysical Prospec-ting,2013,48(1):77-82
[14]陈天胜,刘洋,魏修成.纵波和转换波联合AVO反演方法研究[J].中国石油大学学报,2006,30(1):33-37Chen T S,Liu Y,Wei X C.Joint amplitude versusoffset inversion of P-P and P-SV seismic data[J].Journal of China University of Petroleum,2006,30(1):33-37
[15]张明,韩大匡,姚逢昌,等.转换波成像方法综述[J].石油物探,2006,45(5):553-556Zhang M,Han D K,Yao F C,et al.An overview a-bout converted-wave imaging method[J].Geophysi-cal Prospecting for Petroleum,2006,45(5):553-556
[16]Dankbaar J W M.Separation of P-and S-waves[J].Geophysical Prospecting,1985,33(7):970-986
[17]刘洋.反射波分式展开时距方程及其精度分析[J].石油物探,2003,42(4):441-447Liu Y.Fraction expansion time-distance equation ofreflection wave and its accuracy analysis[J].Geo-physical Prospecting for Petroleum,2003,42(4):441-447
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