基于关系数据库的通用地震数据模型研究和设计  

Studying and designing of general seismic data model based on relational database

作　　者：孟恩[1] 孟东岳[1] 王洪伟[2] 赵广涛[2] 

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]中国海洋大学海底科学与探测技术教育部重点实验室,山东青岛266100

出　　处：《石油地球物理勘探》2009年第5期642-647,共6页Oil Geophysical Prospecting

摘　　要：地震数据是油气勘探和开发的重要数据资源,如何组织和访问地震数据成为各种地震软件研究的重点。本文在分析地震数据结构及当前地震数据的组织和访问方式的基础上,结合关系数据库理论和对象关系映射理论,形成了基于关系数据库的通用地震数据模型,重点解决了以何种方式存储地震数据实现地震数据共享、如何有利于后续发展以及如何快速访问水平切片数据等3个问题。实例测试表明,直接从切片表中提取水平切片数据比从地震道中提取要快千倍以上,体现出建立关系型地震数据库模型在一定程度上提高了地震数据的使用效率和共享性。Seismic data are the important data resource for oil&gas exploration and production,and how to organize and access the data become the key point for seismic software research.By analyzing seismic data structure and current mode of seismic data organization and access,and by integrating with relational database theory and object relational mapping theory,the authors developed a general seismic data model which is based on relational database.With this model the following 3 questions got answered,At first,the right mode by which to store seismic data is found out so that the data can be shared;secondly the way for how to develop in the future becomes clear;and thirdly how to fast access the seismic slice data is solved.The real data test shows that the speed of access to seismic slice data is 1000 times than directly retrieving the data from seismic gather data volume,therefore to a certain extent the development of relational seismic database model raises the seismic data-utilizing efficiency and enhances data-sharing.

关 键 词：关系数据库 地震数据 对象关系映射 关系数据库设计 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] P631.443[自动化与计算机技术—计算机科学与技术]