波动方程辛几何算法三维叠前深度偏移在集群式并行机上的实现  

THE REALITY FOR 3D WAVE-EQUATION SYMPLETIC PRESTACK DEPTH MIGRATION ON LINUX PC-CLUSTER

作　　者：张尔华[1] 范兴才[1] 宋永忠[1] 田芳[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,大庆163712

出　　处：《物探化探计算技术》2002年第3期193-198,共6页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：波动方程三维叠前深度偏移研究 ,已成为近年国内外众多油气勘探科研单位的研究焦点 ,其关键问题之一是借助于软硬件及其匹配的进步 ,以求解决计算量庞大的障碍。作者在本文中从油田实际出发 ,提出了一套并行波动方程辛几何算法三维叠前深度偏移方法与处理流程 ,运用 32节点集群式并行机 ,完成了XJWZ地区 1 5 0km的二维和WJT地区 1 2 6km2 的三维地震资料波动方程叠前深度偏移处理。其成像的效果 ,在信噪比、分辨率。The Research of 3D Wave equation prestack depth migration has now become the focus of study in many institue in overseas and domestics. One of the most important problem is how to resolve the problem of gaint data processing by improvement of software and hardware joint solutions. To solve this problem in Daqing Oil Field, we present a set of parellel wave equation sympletic prestack depth migration flow and compute method, and process 150km 2D and 126km 2 3D seismic data in SW area with our 32 nodes Linux PC Cluster. We finally get an evidently improvement in processing result in S/N ratio, resolution and deep part of complex structure images.

关 键 词：辛几何算法 波动方程 叠前深度偏移 集群式并行机 并行计算 地震勘探 

分 类 号：P631.4[天文地球—地质矿产勘探]