三维油藏彩色模型原理和算法

Principle and Algorithm of 3D Color Reservoir Model

三维油藏彩色模型可真实直观地反映三维地质构造的特点、渗透率和孔隙度等物性参数的分布规律 .文中讨论了在 SU N工作站的 X- Window/Motif平台上建立 2 5 6色三维油藏几何模型的基本方法 ,研究了如何建立三维网格化数据体 ,追踪可视面 ,对模型进行旋转和切割 ,以及着色。

A new principle and algorithm for 3D color mapping model of petroleum reservoir are presented. At first, the original seismic and/or well logging data are converted into spatial grid data body by using Ordinary Kriging Method. Then several 3D visualization geometric models are built by tracing the visual faces in the grid data body, and the traced faces undergo the hidden face removal and coloring process. In this way, we can get a serial of reservoir maps of 3D geophysical parameter data. By means of these 3D color models and their corresponding maps, it is easy and convenient to recognize the geological characteristics and their distribution patterns.