基于数据驱动的合成地震记录技术及其应用研究
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摘要
测井资料与地震资料之间的匹配是地震精细解释和地震反演的基础工作,计算合成地震记录的技术是井震标定的关键技术。分析并建立了基于数据驱动的合成地震记录的技术流程。针对测井资料校正、深时转换子波估算与反射系数求取和地震子波估算3个核心环节,提出了从测井数据去除直流分量、采用非等间距插值和频率域加窗确定性子波求取的可行、有效的计算方法。整个合成地震记录计算过程完全根据测井资料与地震数据自动进行,减少了常规井震标定工作中"拉伸"和"压缩"等人为操作。实际资料的应用结果表明该方法有效,其技术流程可行。
Matching of well-logging data and seismic data is the basic work for seismic fine interpretation and seismic inversion.Furthermore, the key technique in the matching process is the synthetic seismogram method.Aiming at the three core steps,including welllogging data calibration,time-depth conversion and reflectivity computation as well as seismic wavelet estimation,we proposed a method for removing direct-current component from well-logging data, non-equidistant interpolation and deterministic wavelet estimation in frequency domain,and established data-driven synthetic seismogram technique workflow.The whole computation process of synthetic seismogram is completed automatically according to the well-logging and seismic data characteristics.Meanwhile,the processing achieves automatic well-to-seismic tie without manual interference such stretching and squeezing etc.The actual application results show that the computation methods are effective and the processing technique workflow is feasible.
Matching of well-logging data and seismic data is the basic work for seismic fine interpretation and seismic inversion.Furthermore, the key technique in the matching process is the synthetic seismogram method.Aiming at the three core steps,including welllogging data calibration,time-depth conversion and reflectivity computation as well as seismic wavelet estimation,we proposed a method for removing direct-current component from well-logging data, non-equidistant interpolation and deterministic wavelet estimation in frequency domain,and established data-driven synthetic seismogram technique workflow.The whole computation process of synthetic seismogram is completed automatically according to the well-logging and seismic data characteristics.Meanwhile,the processing achieves automatic well-to-seismic tie without manual interference such stretching and squeezing etc.The actual application results show that the computation methods are effective and the processing technique workflow is feasible.
引文
[1]靳玲,苏桂芝,刘桂兰,等.合成地震记录制作的影响因素及对策[J].石油物探,2004,43(3):267 271
[2]Gratwick D,Finn C.What's important in making far-stack well-to-seismic ties in West Africa?[J]. The Leading Edge,2005,24(7):739-749
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[8]冯晅,刘财,杨宝俊,等.高精度合成地震记录制作方法及应用[J].世界地质,2001,20(4):389-395
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[10]Ganley D C.A method for calculating synthetic seismograms which include the effects of absorption and dispersion[J].Geophysics,1981,46(8):1100-1107
[11]蒋淑婷,廖林,贾斐,等.提高合成地震记录质量的方法研究[J].江汉石油学院学报,2003,25(Z2):42-43
[12]陈国民,沈章洪,鲍祥生,等.确定合成地震记录子波主频的方法研究[J].石油天然气学报,2009,31(5): 55-60
[13]李国发,廖前进,王尚旭,等.合成地震记录层位标定若干问题的探讨[J].石油物探,2008,47(2): 145-149
[14]李国发,王尚旭,马彦彦.基于叠前波场模拟的合成地震记录层位标定[J].中国石油大学学报(自然科学版),2010,34(1):29-33
[15]曾正明.合成地震记录层位标定方法改进[J].石油地球物理勘探,2005,40(5):104-106
[16]李宗杰.合成地震记录的人机交互制作方法及应用[J].石油地球物理勘探,1999,34(S1):96-102
[17]陈双全,王尚旭,季敏.基于信号保真的地震数据插值[J].石油地球物理勘探,2005,40(5):515-517
[2]Gratwick D,Finn C.What's important in making far-stack well-to-seismic ties in West Africa?[J]. The Leading Edge,2005,24(7):739-749
[3]石玉.塔河油田合成地震记录的制作及应用[J].石油物探,2004,43(4):400-403
[4]韩文功.用合成地震记录提高地质层位的解释精度[J].石油物探,1993,32(3):21-30
[5]White R E,Hu T Y.How accurate can a well tie be? [J].The Leading Edge,1998,17(8):1065-1071
[6]Henry S.Pitfalls in synthetics[J].The Leading Edge,2000,19(6):604-606
[7]吴海欧,武天祥,陈猛,等.合成地震记录制作的制约因素探讨[J].内蒙古石油化工,2008,34(8):34-36
[8]冯晅,刘财,杨宝俊,等.高精度合成地震记录制作方法及应用[J].世界地质,2001,20(4):389-395
[9]Hornby B E,Howie J M,Ince D W.Anisotropy correction for deviated-well sonic logs:application to seismic well tie[J].Geophysics,2003,68(2): 464-471
[10]Ganley D C.A method for calculating synthetic seismograms which include the effects of absorption and dispersion[J].Geophysics,1981,46(8):1100-1107
[11]蒋淑婷,廖林,贾斐,等.提高合成地震记录质量的方法研究[J].江汉石油学院学报,2003,25(Z2):42-43
[12]陈国民,沈章洪,鲍祥生,等.确定合成地震记录子波主频的方法研究[J].石油天然气学报,2009,31(5): 55-60
[13]李国发,廖前进,王尚旭,等.合成地震记录层位标定若干问题的探讨[J].石油物探,2008,47(2): 145-149
[14]李国发,王尚旭,马彦彦.基于叠前波场模拟的合成地震记录层位标定[J].中国石油大学学报(自然科学版),2010,34(1):29-33
[15]曾正明.合成地震记录层位标定方法改进[J].石油地球物理勘探,2005,40(5):104-106
[16]李宗杰.合成地震记录的人机交互制作方法及应用[J].石油地球物理勘探,1999,34(S1):96-102
[17]陈双全,王尚旭,季敏.基于信号保真的地震数据插值[J].石油地球物理勘探,2005,40(5):515-517
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