摘要
复杂地表共反射面元(CRS)叠加技术可以直接应用于未作静校正的数据。在基准面重建时,利用CRS运动学波场参数可将CRS叠加剖面校正到某一选定的水平面上。在复杂地表CRS叠加中,波场三参数的耦合需要用到组合参数优化策略,因此实际处理过程中采用模拟退火算法来实现。地震数据的试算表明,复杂地表CRS叠加得出的剖面比常规处理剖面有较高信噪比和同相轴连续性。另外,对CRS叠加技术的几个发展方向和研究热点进行了总结。
Common reflection surface (CRS) stack method that takes into account the effects of rugged topography can be applied directly to the prestack data without static correction. In reda-tuming, CRS-stacked ZO section can be scaled to a chosen planar measurement level with kinematic wavefield attributes. Because of the three kinematic parameters coupling with each other, we used simulated annealing algorithm to solve the problem. Model data and real data tests indicate that the results are much better than those of conventional stack in terms of S/N ratio and continuity of reflection events. This paper summarized the developing trends and hot issues of common reflection surface stack.
出处
《勘探地球物理进展》
2007年第5期330-333,360,共5页
Progress in Exploration Geophysics
基金
国家自然科学基金(40474011)
国家863专题(2006AA06Z206)
中原油田博士后科研工作站和CNPC物探重点实验室中国石油大学(华东)研究室资助
关键词
CRS叠加
波场参数
基准面重建
模拟退火
组合参数优化
common reflection surface (CRS) stack
wavefileld parameter
data redatuming
simulated annealing
parameter iptimization
