LDM地震数据体的存储格式分析与应用
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
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.
引文
1陆基孟.地震勘探原理(下).北京:石油大学出版社,1993.
    2 王秀文,姚立平,赖德伦等.地震数据交换标准.地震地磁观测与研究,1994,(2).
    3 王家华,陈雨馨.基于Volume Viz的储层可视化研究与实现.软件导刊,2013,(12).
    4 王侠.SEGY数据新标准:SEG Y rev 1.0.油气地球物理,2006,(4):50–52.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心