单点数字检波器室内组合技术在川西的应用
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摘要
野外地震资料采集中,检波器的各种组合通常作为压制规则干扰、突出有效信号的重要手段,但野外检波器组合在压制干扰波的同时也压制了有效信号。采用数字单点检波器很容易在室内实现接收道组合,且效果优于野外组合。在理论分析的基础上,针对川西高密度试验线,利用单点多分量数字检波器、5m道距5m线距接收的地震资料Z分量进行了室内不同方式的组合试验。研究表明,采用合适的组合方式,在基本不影响资料分辨率的同时,可有效提高数字检波器接收信噪比,达到甚至超过常规模拟检波器接收效果。
To suppress the regular interference,improve the useful signal and increase the signal to noise ratio of raw data,a variety of geophone array pattern is usually used to receive seismic wave in field seismic data acquisition.Although the pattern can suppresses interference waves,it damages desired signal.Adopting the single point digital geophone,the indoor array for unite single trace data can easily be carried out,and is superior to the field geophone array.Based on theoretical analysis,a variety of indoor overlapping data has been carried out by combination with the data of 5 m group interval single point digital geophone received in work zone of western Sichuan.The study results show that a good indoor overlapping technique for single-point digital geophone can increase the signal to noise ratio of raw data,and attain or exceed the effect of seismic data acquisition of normal analog geophone meanwhile the data resolution is not basically affected.
To suppress the regular interference,improve the useful signal and increase the signal to noise ratio of raw data,a variety of geophone array pattern is usually used to receive seismic wave in field seismic data acquisition.Although the pattern can suppresses interference waves,it damages desired signal.Adopting the single point digital geophone,the indoor array for unite single trace data can easily be carried out,and is superior to the field geophone array.Based on theoretical analysis,a variety of indoor overlapping data has been carried out by combination with the data of 5 m group interval single point digital geophone received in work zone of western Sichuan.The study results show that a good indoor overlapping technique for single-point digital geophone can increase the signal to noise ratio of raw data,and attain or exceed the effect of seismic data acquisition of normal analog geophone meanwhile the data resolution is not basically affected.
引文
[1]唐建明.转换波三维三分量地震勘探方法技术研究[D].成都:成都理工大学,2010.
[2]刘胜,李世琼,杨继友,等.三维三分量地震采集技术在川西地区的应用[J].石油地球物理勘探,2011,46(5):675-680.
[3]黄中玉,谈大龙,徐亦鸣.三分量数字检波器在ZY油田应用效果分析[J].地球物理学进展,2006,21(1):173-178.
[4]陆基孟.地震勘探原理[M].山东东营:石油大学出版社,1993.
[5]梁运基,李桂林.陆上高分辨率地震勘探检波器性能及参数选择分析[J].石油物探,2005,44(6):640-644.
[6]罗福龙,易碧金,罗兰兵.地震检波器技术及应用.物探装备[J],2005,15(1):6-14.
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[8]曹务祥.高空间密度采样资料分析[J].勘探地球物理进展,2006,29(3):178-182.
[9]董世泰,高红霞.单点单检波器地震勘探技术[J].石油仪器,2005,19(2):66-68.
[10]李庆忠.走向精确勘探的道路[M].北京:石油工业出版社,1993.
[11]曹务祥.单道接收地震资料的室内组合方法[J].石油地球物理勘探,2006,41(6):615-618.
[12]杨照海,凡正才,赵前华.单点数字检波器道组合技术[J].石油地球物理勘探,2008,43(S2):88-93.
[2]刘胜,李世琼,杨继友,等.三维三分量地震采集技术在川西地区的应用[J].石油地球物理勘探,2011,46(5):675-680.
[3]黄中玉,谈大龙,徐亦鸣.三分量数字检波器在ZY油田应用效果分析[J].地球物理学进展,2006,21(1):173-178.
[4]陆基孟.地震勘探原理[M].山东东营:石油大学出版社,1993.
[5]梁运基,李桂林.陆上高分辨率地震勘探检波器性能及参数选择分析[J].石油物探,2005,44(6):640-644.
[6]罗福龙,易碧金,罗兰兵.地震检波器技术及应用.物探装备[J],2005,15(1):6-14.
[7]倪良健.塔中沙漠区地震勘探采集方法研究[D].北京:中国地质大学,2006.
[8]曹务祥.高空间密度采样资料分析[J].勘探地球物理进展,2006,29(3):178-182.
[9]董世泰,高红霞.单点单检波器地震勘探技术[J].石油仪器,2005,19(2):66-68.
[10]李庆忠.走向精确勘探的道路[M].北京:石油工业出版社,1993.
[11]曹务祥.单道接收地震资料的室内组合方法[J].石油地球物理勘探,2006,41(6):615-618.
[12]杨照海,凡正才,赵前华.单点数字检波器道组合技术[J].石油地球物理勘探,2008,43(S2):88-93.
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