微地震测井记录子波提取方法及应用
|
摘要
本文提出的微地震测井记录子波提取法,综合考虑了直流分量和截断效应的影响,比常规的最小二乘法能够获取更为精确的子波。据此提取的近地表子波形态可以更好地反映近地表地层的激发岩性,就是说,通过微地震测井资料提取的子波可实现对近地表激发条件的监控和选择。此法在胜利油田东部探区的实际应用中取得了较好的效果。
On consideration of direct-current component and wavelet cutting-off effects,we propose in this paper a wavelet extraction approach from microseismogram logs.It can obtain more accurate wavelet than the conventional least squares method.Near-surface wavelet picking by this method can reflect shooting effects of near-surface strata.With this method near-surface excitation conditions can be monitored and selected.Applications in eastern Shengli Oilfield show effectiveness of the method.
On consideration of direct-current component and wavelet cutting-off effects,we propose in this paper a wavelet extraction approach from microseismogram logs.It can obtain more accurate wavelet than the conventional least squares method.Near-surface wavelet picking by this method can reflect shooting effects of near-surface strata.With this method near-surface excitation conditions can be monitored and selected.Applications in eastern Shengli Oilfield show effectiveness of the method.
引文
[1]云美厚,丁伟.地震子波频率浅析.石油物探,2005,44(6):578～581Yun Meihou,Ding Wei.Analysis of seismic waveletfrequency.GPP,2005,44(6):578～581
[2]杨培杰,印兴耀.地震子波提取方法综述.石油地球物理勘探,2008,43(1):123～128Yang Peijie,Yin Xingyao.Summary of seismic wave-let pick-up.OGP,2008,43(1):123～128
[3]查中圻.提取子波的一种算法.石油地球物理勘探,1981,16(4):27～36
[4]张广智,刘洪,印兴耀.井旁道地震子波精细提取方法.石油地球物理勘探,2005,40(2):158～162Zhang Guangzhi,Liu Hong,Yin Xingyao.Method forfine picking up seismic wavelet at uphole trace.OGP,2005,40(2):158～162
[5]冯晅,刘财,杨宝俊等.分时窗提取地震子波及在合成地震记录中的应用.地球物理学进展,2001,17(1):71～77Feng Xuan,Liu Cai,Yang Baojun et al.The extrac-tive method of seismic wavelet in different time windowand the application in synthetic seismogram.Progressin Geophysics,2001,17(1):71～77
[6]夏洪瑞,周开明,黄桥等.波阻抗反演技术中空变子波的求取.石油物探,2002,41(4):470～474Xia Hongrui,Zhou Kaiming,Huang Qiao et al.Calcu-lation of spatial-variant wavelet in acoustic impedanceinversion.GPP,2002,41(4):470～474
[2]杨培杰,印兴耀.地震子波提取方法综述.石油地球物理勘探,2008,43(1):123～128Yang Peijie,Yin Xingyao.Summary of seismic wave-let pick-up.OGP,2008,43(1):123～128
[3]查中圻.提取子波的一种算法.石油地球物理勘探,1981,16(4):27～36
[4]张广智,刘洪,印兴耀.井旁道地震子波精细提取方法.石油地球物理勘探,2005,40(2):158～162Zhang Guangzhi,Liu Hong,Yin Xingyao.Method forfine picking up seismic wavelet at uphole trace.OGP,2005,40(2):158～162
[5]冯晅,刘财,杨宝俊等.分时窗提取地震子波及在合成地震记录中的应用.地球物理学进展,2001,17(1):71～77Feng Xuan,Liu Cai,Yang Baojun et al.The extrac-tive method of seismic wavelet in different time windowand the application in synthetic seismogram.Progressin Geophysics,2001,17(1):71～77
[6]夏洪瑞,周开明,黄桥等.波阻抗反演技术中空变子波的求取.石油物探,2002,41(4):470～474Xia Hongrui,Zhou Kaiming,Huang Qiao et al.Calcu-lation of spatial-variant wavelet in acoustic impedanceinversion.GPP,2002,41(4):470～474
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心