摘要
流线是分析渗流场流体流动特性的一个非常重要的工具,其构造方法的研究已受到油藏工程师们的普遍关注。给出了基于约束Delaunay三角网格的等值线和流线生成算法。提出了一种新的计算渗流场压力梯度的方法,借助于"翼边"数据结构,设计了"指南针"算法加速流线的跟踪过程。实例表明,算法具有良好的时空效率,结果能够较为直观地反映出油藏流体在注采井间的运动轨迹。
Streamline is an important tool used to analyze and visualize the flow through porous media,such as oil flow and underwater flow.The streamline construction algorithm has been concerned widely by reservoir engineers.Algorithms of generating streamlines based on constrained Delaunay triangulation are presented in this paper.A novel pressure gradients calculation method is also put forward.In addition,＂compass＂ algorithm based on ＂wing-edge＂ data structure is adopted to fasten the streamline integration process.Examples show the algorithm has good time and space efficiency.The generated streamlines can visual display the reservoir fluid＇s movement tracks between the producers and injectors.
出处
《计算机工程与应用》
CSCD
北大核心
2010年第18期233-236,共4页
Computer Engineering and Applications
基金
国家重大专项项目(No.2008ZX05038-001)
北京市自然科学基金No.406201~~
