油气藏等值线图跟踪和填充算法  

An algorithm of reservoir contour tracing and rendering

作　　者：王家华[1] 黄本宇[1] 

机构地区：[1]西安石油大学,陕西西安710065

出　　处：《特种油气藏》2006年第6期95-97,104,共4页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金项目"河流相储层建模的随机游走方法研究"(批准号:50474042)的资助

摘　　要：本文提出了一种基于局部多边形的等值线跟踪和填充的算法。该算法将等值线的追踪和填充同时进行。算法基本思想是:先对矩形网格4个顶点值按照其大小和相互位置关系分类,然后把矩形网格划分为若干个三角形网格,最后在三角形网格内完成等值线的追踪和填充。研究实例表明,该算法在油藏描述可视化中有很好的显示与应用效果。This paper introduces an algorithm of contour tracing and rendering,which realizes contour tracing and contour rendering at the same time.The main idea of this algorithm is as following: firstly,the rectangle is classified by the value and position of its vertices;secondly,the rectangle is divided into some triangles through classification;thirdly,trace and render contour on each triangle obtained above.Experiment results show that this algorithm has excellent effect of displaying and applying in reservoir description.

关 键 词：油藏描述 等值线 等值线跟踪 彩色填充 算法 

分 类 号：TE19[石油与天然气工程—油气勘探]