最优性价比的观测系统设计方法研究
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摘要
三维观测系统优化设计是野外地震采集工作的一个重要环节,影响着后期地震资料采集处理解释的各个工作环节.因此,高质量的观测系统设计是地震勘探工作的关键,然而在无限制的追求高信噪比、高分辨率的地震资料,高难度的野外施工的同时,这往往会带来较大的成本投入.鉴于以上存在的问题,文章着重分析质量最优和成本最优的观测系统设计,通过寻找观测系统参数与采集质量和采集成本的关系,结合二者的优点,提出了最优性价比的观测系统优化设计方法,并通过一个实际工区的试验,体现出该方法的应用效果,为高质量的观测系统设计提供新的思路和方法.
3-D geometry optimization design is important part of field seismic acquisition work,which has influence on post-seismic data acquisition,processing and interpretation of the various working aspects.Thus,high-quality geometry design is the key to seismic survey.However the unrestricted pursuit of high signal to noise ratio,high resolution seismic data,and highly difficult field work at the same time often brings greater cost inputs.In view of the above problems,the article focuses on analyses of quality-optimal and cost-optimal geometry design.By looking for the relationship between geometry parameters and acquisition quality and acquisition costs,combining the advantages each other,we propose the best cost-effective geometry optimization design method,and through an experiment of the actual work area,we show the application effect of this method,which offers new ideas and methods to high-quality geometry design.
3-D geometry optimization design is important part of field seismic acquisition work,which has influence on post-seismic data acquisition,processing and interpretation of the various working aspects.Thus,high-quality geometry design is the key to seismic survey.However the unrestricted pursuit of high signal to noise ratio,high resolution seismic data,and highly difficult field work at the same time often brings greater cost inputs.In view of the above problems,the article focuses on analyses of quality-optimal and cost-optimal geometry design.By looking for the relationship between geometry parameters and acquisition quality and acquisition costs,combining the advantages each other,we propose the best cost-effective geometry optimization design method,and through an experiment of the actual work area,we show the application effect of this method,which offers new ideas and methods to high-quality geometry design.
引文
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[2] Morrice D J,Kenyonz A S,Beckett C J.Optimizing operations in 3-D land seismic surveys[J].Geophysics,2001,66(6) :1818～1826．
[3] Vermeer G J O.3-D seismic survey design optimization,THE LEADING EDGE,2003,22(10) :934～941．
[4] 尹成,吕公河,田继东,等.基于地球物理目标参数的三维观测 系统优化设计[J].石油物探,2006,45(1) :74～78 Yin C,Lu G H,Tian J D,et al,The optimization of 3-D observation system based on geophysical objective parameters[J].GPP,2006,45(1) :74～78
[5] 蒋韬,符力耘,碗学检,陶毅,基于波动方程的目标导向观测系统设计方法研究[J].地球物理学进展,2008,23(2) :359～367． Jiang T,Fu L Y,Wan X J,Tao Y.Target-oriented layout designing method based on wave equations[J].Progress in Geophysics (in Chinese),2008,23(2) :359～367．
[6] 孙银行,弱各向异性介质弹性波的准各向同性近似正演模拟[J].地球物理学进展,2008,23(4) :1118～1123． Sun Y H.Elastic wave forward modeling with quasi-isotropic approximation in weakly anisotropic medium[J].Progress in Geophysics (in Chinese),2008,23(4) :1118～1123．
[7] 冯英杰,杨长春,吴萍.地震波有限差分模拟综述[J].地球物理学进展,2007,22(2) :487～491． Feng Y J,Yang C C,Wu P.The review of the finite-difference elastic wave motion modeling[J].Progress in Geophysics (in Chinese),2007,22(2) :487～491．
[8] 郑洪伟,李廷栋,高锐,等.数值模拟在地球动力学中的研究进展[J].地球物理学进展,2006,21(2) :360～369． Zheng H W,Li T D,Gao R,etal.The advance of numerical simulation in geodynamics[J].Progress in Geophysics (in Chinese),2006,21(2) :360～369．
[9] 徐锦玺,邱燕,何京国,等.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． Xu J X,Qiu Y,He J G,et al.Seismic exploration acquisition technique application of Beach shallow sea[J].Progress in Geophysics (in Chinese),2005,20(1) :66～70．
[10] 杨贵祥.碳酸盐岩裸露区地震勘探采集方法[J].地球物理学进展,2005,20(4) :1108～1128． Yang G X.The method of seismic exploration in the bare carbonate rock area[J].Progress in Geophysics (in Chinese),2005,20(4) :881～888．
[11] 贾晓峰,胡天跃,王润秋.无单元法用于地震波波动方程模拟与成像[J].地球物理学进展,2006,21(1) :11～17． Jia X F,Hu T Y,Wang R Q.Wave equation modeling and imaging by using element-free method[J].Progress in Geophysics (in Chinese),2006,21(1) :11～17．
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