三维观测系统采样均匀性分析方法的研究
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摘要
观测系统采样均匀性对高精度三维地震采集资料的空间连续性、均衡性,以及对后续资料处理(叠前偏移)和综合解释至关重要。在此提出应用三维观测系统均匀性分析评价方法,通过定性、定量分析三维观测系统的覆盖次数、炮检距、方位角和炮检点分布均匀情况,从整体上对比分析不同观测系统的资料采样均匀性差异,使三维观测系统的选择更加科学、合理。
The uniformity of 3D geometry is essential to seismic acquisition in the spatial continuity,balance,as well as follow-up data processing(prestack migration) and comprehensive explanation.In this paper,the analytical evaluation method of 3D geometry is presented to be applied,through analyzing and evaluating the uniformity of 3D geometry on fold,offset,azimuth and offset-fold qualitatively or quantitatively,so as to comparatively analyze the sampling uniformity difference of 3D geometries on the whole,then feed back the analysis results to design process of 3D geometry,make the choice of 3-D geometry more scientific and reasonable.
引文
[1]张晓江,王元君.关于三维地震勘探设计思路的讨论[J].石油天然气学报,2006,28(3):270~272.
    [2]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):495~498,509.
    [3]李庆忠.对宽方位角三维采集不要盲从——到底什么叫“全三维采集”[J].石油地球物理勘探,2001,36(1):122~124.

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