井间地震数据处理方法——以大庆某采油厂井间地震勘探为例
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摘要
本文以大庆油田A区井间地震资料为实例,介绍了井间地震数据采集的方法,并对资料处理的难点及相应的处理方法(互相关叠加、波场分离、直达波层析成像和反射波成像)进行了研究,总结出了一套切实可行的处理方法。通过对三口井的井间地震剖面首尾相接,可看出剖面接缝并不明显,同相轴连续性很好,信噪比和分辨率较高,说明该处理方法是可行的。
Based on the seismic data in A Block in Daqing Oilfield,the cross-well seismic data acquisition method is introduced in this paper.With the study to the difficulties of data processing and the corresponding processing methods,such as cross-correlation stack,wave field separation,direct wave tomography and reflection image,a set of practical processing methods are summarized.After merging the cross-well seismic sections of three wells,it can be found that the joints of the cross-well seismic section are not obvious and the seismic events are continuous,showed the relatively higher resolution and signal to noise ratio and demonstrated the feasibility of the processing method.
Based on the seismic data in A Block in Daqing Oilfield,the cross-well seismic data acquisition method is introduced in this paper.With the study to the difficulties of data processing and the corresponding processing methods,such as cross-correlation stack,wave field separation,direct wave tomography and reflection image,a set of practical processing methods are summarized.After merging the cross-well seismic sections of three wells,it can be found that the joints of the cross-well seismic section are not obvious and the seismic events are continuous,showed the relatively higher resolution and signal to noise ratio and demonstrated the feasibility of the processing method.
引文
[1]朱光明编.垂直地震剖面方法.北京:石油工业出版社,1992
[2]朱光明,李桂花,张文波.VTI介质三分量井间地震观测波场数值模拟.石油地球物理勘探,2008,43(2):201~206Zhu Guang-ming,Li Gui-hua and Zhang Wen-bo.Nu-meric simulation of 3 component crosshole seismicsurveying wavefield in VTI media.OGP,2008,3(2):201~206
[3]李桂花,朱光明.射线法模拟分析井间地震观测的波场特征.地球物理学进展,2007,22(6):1847~1855Li Gui-hua,Zhu Guang-ming.Ray tracing methodsimulating crosswell seismic data and analysis thecharacteristic of the wavefield.Progress in Geophys-ics,2007,22(6):1847~1855
[4]李桂花,朱光明.VTI介质中井间地震三分量数据的波场特征研究.煤田地质与勘探,2008,36(1):66~70Li Gui-hua,Zhu Guang-ming.Wavefield characteris-tic of 3C crosswell seismic data in the VTI media.Coal Geology&Exploration,2008,36(1):66~70
[5]李桂花.井间地震波场数值模拟及波场特征研究[西安科技大学博士毕业论文],西安,2008Li Gui-hua.Study on Crosswell Seismic NumericalSimulation and Wavefield Characteristics[D].PhDDissertation Xi’an University of Science and Technol-ogy,Xi’an,2008
[6]Rector J W III,Lazarators S K,Harris J M,andVan Schaack M.High-resolution cross-well imagingof a west Texas carbonate reservoir:part 3—wave-filed separation of reflections.Geophysics,1995,60(3):692~701
[7]马德堂,朱光明,张文波.双重网格井间地震层析成像技术.地球科学与环境学报,2005,27(4):83~86Ma De-tang,Zhu Guang-ming and Zhang Wen-bo.Cross-hole Seismic Tomography with Double Grid.Journal of Earth Sciences and Environment,2005,27(4):83~86
[8]Washboume J K,Rector J W III,Bube K P.Cross-well travel time tomography in three dimension.Geo-physics,2002,67(3):853~861
[9]李庆忠,王建花.井间地震勘探误区及其出路.石油地球物理勘探,2004,39(1):1~11Li Qing-zhong and Wang Jian-hua.Pitfall of crossholeseismic exploration and way out.OGP,2004,39(1):1~11
[10]郭全仕,邬达理,唐金良等.井间地震反射波成像技术探讨.石油物探,2005,44(5):439~444Guo Quan-shi,Wu Da-li,Tang Jin-liang et al.The re-flection imaging of seismic crosshole.GPP,2005,44(5):439~444
[11]Lazaratos S K,Harris J M,Rector J W III and VanSchaack M.High-resolution cross-well imaging of awest Texas carbonate reservoir:Part 4—Reflectionimaging.Geophysics,1995,60(3):702~711
[2]朱光明,李桂花,张文波.VTI介质三分量井间地震观测波场数值模拟.石油地球物理勘探,2008,43(2):201~206Zhu Guang-ming,Li Gui-hua and Zhang Wen-bo.Nu-meric simulation of 3 component crosshole seismicsurveying wavefield in VTI media.OGP,2008,3(2):201~206
[3]李桂花,朱光明.射线法模拟分析井间地震观测的波场特征.地球物理学进展,2007,22(6):1847~1855Li Gui-hua,Zhu Guang-ming.Ray tracing methodsimulating crosswell seismic data and analysis thecharacteristic of the wavefield.Progress in Geophys-ics,2007,22(6):1847~1855
[4]李桂花,朱光明.VTI介质中井间地震三分量数据的波场特征研究.煤田地质与勘探,2008,36(1):66~70Li Gui-hua,Zhu Guang-ming.Wavefield characteris-tic of 3C crosswell seismic data in the VTI media.Coal Geology&Exploration,2008,36(1):66~70
[5]李桂花.井间地震波场数值模拟及波场特征研究[西安科技大学博士毕业论文],西安,2008Li Gui-hua.Study on Crosswell Seismic NumericalSimulation and Wavefield Characteristics[D].PhDDissertation Xi’an University of Science and Technol-ogy,Xi’an,2008
[6]Rector J W III,Lazarators S K,Harris J M,andVan Schaack M.High-resolution cross-well imagingof a west Texas carbonate reservoir:part 3—wave-filed separation of reflections.Geophysics,1995,60(3):692~701
[7]马德堂,朱光明,张文波.双重网格井间地震层析成像技术.地球科学与环境学报,2005,27(4):83~86Ma De-tang,Zhu Guang-ming and Zhang Wen-bo.Cross-hole Seismic Tomography with Double Grid.Journal of Earth Sciences and Environment,2005,27(4):83~86
[8]Washboume J K,Rector J W III,Bube K P.Cross-well travel time tomography in three dimension.Geo-physics,2002,67(3):853~861
[9]李庆忠,王建花.井间地震勘探误区及其出路.石油地球物理勘探,2004,39(1):1~11Li Qing-zhong and Wang Jian-hua.Pitfall of crossholeseismic exploration and way out.OGP,2004,39(1):1~11
[10]郭全仕,邬达理,唐金良等.井间地震反射波成像技术探讨.石油物探,2005,44(5):439~444Guo Quan-shi,Wu Da-li,Tang Jin-liang et al.The re-flection imaging of seismic crosshole.GPP,2005,44(5):439~444
[11]Lazaratos S K,Harris J M,Rector J W III and VanSchaack M.High-resolution cross-well imaging of awest Texas carbonate reservoir:Part 4—Reflectionimaging.Geophysics,1995,60(3):702~711
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