基于测井数据的三维地质模型构建与可视化

Construction and Visualization of 3D Geological Model Based on Log Data

地质构造三维可视化是指将地质勘探数据和测井数据用直观的图形方式显示 ,是正确认识地质构造和油藏分布的重要手段。根据对地质测井的稀疏散乱数据的三角剖分及用Shepard ,Multiquadric ,Ordinary Kriging等多种方法进行的插值 ,完成了地质测井层面和地质体的重构 ,进而实现了地层和地质体的属性分布、地质体的立体剖切、测井曲线等多种三维地质模型的可视化 ,为准确快速掌握地质构造和多种属性分布提供了科学的依据。介绍的方法均已在FON WARD .NET软件平台二维、三维绘图中实践。

Three dimension visualization of geology-constructed-model is used to directly display the exploration data and well loggingdata in graphical methods, which is an important means to learn the geo-body structure and oil distribution. Based on the sparse well logging data triangulation and interpolation algorithm of Shepard, Multiquadric and Ordinary-Kriging methods, the geological layers and body models are constructed. Then several visualization methods on 3D geological models are implemented, such as attribute distribution, cutting profile and well logging curves, which provides a scientific base for mastering the geological structure and attributes distribution. The methods introduced have been realized in the 2D and 3D modules based on FORNWARD NET.