关键词: 三维网格剖切, 井轨迹投影, 可视化, 数据压缩, 油气储层

Abstract: For the segmentation and visualization of three-dimensional （3D） oil andgas reservoir, a solution is presented which consists of the following components：A unified data model and interfaces that adapted to a variety of reservoir model files are designed. The second is the oil and gas 3D reservoir model segmentation. The idea of cutting is to divide each face of hexahedral and vertical folding surface into triangles, so that the intersecting lines are calculated by the two triangles intersects algorithm, and then the reservoir section is gotten. This paper briefly describes the compression algorithm of the well trajectories and the method to project the well trajectories on the reservoir section. Finally, the methods of unfold the three-dimensional sections to two-dimensional are discussed. The algorithm is realized by programming and the actual reservoir model data are used to test. The results indicate that the algorithms and process have the advantages of feasibility, flexible and efficient.

Key words: 3D mesh cutting, well trajectory projection, visualization, data compression, oil and gas reservoir