一种优化的过渡带三维观测系统
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摘要
过渡带地区三维地震资料采集所用的观测系统包括陆上和水上两种,涉及两种观测系统过渡的问题。通常陆上采用接收道数多激发炮点少的观测系统,水上则使用接收道数少激发炮点多的观测系统,理论上水上和陆上的观测系统可以实现无缝连接,实际上由于陆上放炮时,要求水上的排列数与陆上的相同而很难实现。为此,在理论设计的无缝连接观测系统基础上,根据炮检互换原理,提出了一种优化的适合过渡带施工特点的观测系统。应用实例表明,优化过渡带三维观测系统不仅解决了实际施工中水上排列不足而陆上排列闲置的问题,实现了陆上和水上观测系统的无缝隙连接,而且同时保证了水上和陆上地震资料属性分布的一致性。
The geometry applied in transitional zone seismic survey in- cludes onshore geometry and offshore geometry,and the complicat- ed transition between the two geometries is also involved.General- ly,3-D land seismic survey geometry uses more receiver channels with relatively fewer shot points.3-D offshore seismic survey ge- ometry utilizes more shot points with relatively fewer receiver channels.Geometries can be merged seamlessly in theoretical de- sign,but the merging is very difficult to be realized because the spread for some specific land shots are required to be of the same channels as it extends from land to offshore water.Therefore, based on the above seamlessly geometry theoretical design,by a- dopting shot-receiver interchangeable principle,an optimized geom- etry suitable for the working characteristics in transitional zone was proposed.Actual application shows that the optimized 3-D seismic survey geometry in the transitional zone not only solves the prob- lem of deficiency in offshore arranges and sufficiency in land arran- ges in actual work,realizes the seamless merging of offshore and land system,but also maintains the attributes distribution consis- tency of the onshore and offshore data.
引文
1刘小明,芮建民,朱峰.浅水及水陆过渡带地震勘探采集技术[J].江汉石油学院学报,2003,25(增刊(下)):61
    2徐锦玺,邱燕,何京国.滩浅海地震勘探采集技术应用[J].地球物理学进展,2005,20(1):66~70
    3崔汝国,王彦春,曹国滨.胜利油田滩浅海地区地震勘探技术[J].物探与化探,2006,30(5):441~445
    4周滨,刘长镇,高祁.海上浅水区地震资料采集方法研究[J].中国海上油气,2007,19(2):90~92
    5邹东波,刘刚,徐梅,等.胜利桩海地区三维地震资料连片处理的地质效果[J].石油物探,2005,44(1):79~82
    6 Morrice D J,Kenyonz A S,Beckett C J.Optimizing op- erations in 3-D land seismic surveys [J].Geophysics, 2001,66(6):1818~1826
    7杨怀春,高生军.海洋地震勘探中空气枪震源激发特性研究[J].石油物探,2004,43(4):323~326
    8唐云,李显贵,邱华,等.宽方位地震资料采集观测系统设计初探[J].石油物探,2003,42(2):233~236
    9张伟,尹成,田继东,等.三维观测系统参数的退化性处理试验[J].石油物探,2007,46(1):69~73
    10牛华伟,郑军,赵麟.Uniqueness及其在海洋三维地震勘探中的应用[J].石油物探,2001,40(1):82~87
    11尹成,吕公河,田继东,等.三维观测系统属性分析与优化设计[J].石油地球物理勘探,2005,40(5):495~503
    12阎世信,谢文导.三维地震观测方式应用的几点意见[J].石油地球物理勘探,1998,33(6):787~795
    13宋玉龙.滩浅海地区地震勘探存在问题及其解决方法[J].石油物探,2005,44(4):343~347
    14王西文,周立宏.三维地震资料拼接中的地震子波处理[J].石油物探,2002,41(4):448~451

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