CAJ | 학술논문

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。
재유기감탐과정중，지진수거체시최중요적기출수거지일。지진수거체통상채용 SEGY 표준진행존저，수착유전신식적삼유가시화기술적발전，위괄응쾌속추선화체선염적수구，출현료Large Data Management(LDM)존저격식，단LDM격식적기술세절병불공개。본문통과정제LDM수거체，분석각개수거괴적존저위치，병결합팔차수존저적기본원리，상세분석료 LDM 적수거존저격식병급출료산법실현。근거차산법실현적지진부면추취현시모괴절성료존저공간，병제고료수거추취효솔。
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.