LDM地震数据体的存储格式分析与应用  

Storage Format Analysis and Application of LDM Seismic Data Volume

作　　者：申龙斌[1] 刘昶[1] 王贵斌[2] 于静[3] 

机构地区：[1]中国石化胜利油田分公司物探研究院,东营257022 [2]中国石化胜利油田分公司现河采油厂,东营257342 [3]中国石化地球物理公司胜利分公司,东营257086

出　　处：《计算机系统应用》2015年第6期225-230,共6页Computer Systems & Applications

摘　　要：在油气勘探过程中,地震数据体是最重要的基础数据之一.地震数据体通常采用SEGY标准进行存储,随着油田信息的三维可视化技术的发展,为适应快速抽线和体渲染的需求,出现了Large Data Management(LDM)存储格式,但LDM格式的技术细节并不公开.本文通过定制LDM数据体,分析各个数据块的存储位置,并结合八叉树存储的基本原理,详细分析了LDM的数据存储格式并给出了算法实现.根据此算法实现的地震剖面抽取显示模块节省了存储空间,并提高了数据抽取效率.In the process of oil and gas exploration, seismic data is one of the most important basic data. Seismic data are usually stored by the SEGY standard. With the development of 3D visualization technology in oilfield information, the Large Data Management （LDM） storage format was born to fit the needs of fast seismic line plucking and volume rendering. But the technical details of LDM format are not open. The paper, through customizing the LDM data, analyzing the storage position of each block data, analyses the storage format of LDM in detail, and gives the algorithm implementation, which combined with the basic principle of octree storage. This algorithm, under which the display module is extracted by the seismic profile, saves the storage space, and improves the efficiency of data extraction.

关 键 词：地震数据体 地震剖面 三维可视化 八叉树 

分 类 号：P631.44[天文地球—地质矿产勘探] TP333[天文地球—地质学]