基于角点网格的煤储层三维建模研究与应用
发布时间：2018-08-02 11:33
【摘要】：煤储层的三维建模与可视化是进行煤层气排采分析与数值模拟研究的重要环节,具有重要的作用。虽然煤层地质体的三维建模和可视化,国内外专家学者提出了很多理论方法,但是角点网格技术的上下底面数据存储方法更加适合煤储层本身的分层结构特点。另外传统煤地质研究中存储有大量采样点数据、等值线数据等资料,利用已有资料形式建立三维模型及可视化方法具有重要的实际意义。因此论文在研究并分析了各种三维建模的方法理论后,介绍了角点网格模型的数据特点、研究了角点网格的生成方法,并重点阐述了基于Surfer的层面建模、基于角点网格建立三维结构模型与属性模型的过程及关键技术问题。根据前期需求分析,以VS2010为软件开发平台,采用C#语言与Open GL图形接口开发了煤储层三维可视化软件模型。软件功能主要包括数据读取、图形的多样化显示、平面点集凸壳的生成与网格边界的调整、剖切面制作等。最后,结合沁水盆地煤层气田潘庄区部分煤层的Surfer空间数据,建立三维地质模型,经过模拟分析,切片分析了不同时间点的空间压力分布。结果表明运用角点网格模拟煤储层三维地质结构具有一定的优势,同时,运用Open GL来实现煤储层的三维可视化,展示了煤层地质体的外部形态特征与内部结构和属性信息,具有实际意义。
[Abstract]:The 3D modeling and visualization of coal reservoir is an important link in the analysis and numerical simulation of coal bed gas production. Although the 3D modeling and visualization of the coal seam geological body, experts and scholars at home and abroad put forward a lot of theoretical methods, but the data storage method of the upper bottom surface of the corner grid technology is more suitable for coal storage. The stratified structure of the layer itself. It is of great practical significance to store the data of a large number of sampling points, the data of the contour lines and so on, and to establish a three-dimensional model and visualization method in the form of existing data. Therefore, the paper introduces the angle grid model after studying and analyzing the methods and theories of various three-dimensional modeling. The generation method of corner grid is studied, and the process and key technical problems of building 3D structure model and attribute model based on corner grid are emphatically expounded based on Surfer level modeling. According to the earlier requirement analysis, VS2010 is used as software development platform, and coal storage is developed by C# language and Open GL graphical interface. The software function mainly includes the data reading, the diversified display of the graphics, the formation of the convex hull of the plane point set and the adjustment of the grid boundary, the production of the section and so on. Finally, the three-dimensional geological model is established by combining the Surfer spatial data of the partial coal seam in the Pang Zhuang District of the Qinshui Basin. The spatial pressure distribution at different time points is analyzed. The results show that using corner grid to simulate the three-dimensional geological structure of coal reservoir has some advantages. At the same time, using Open GL to realize the three-dimensional visualization of the coal reservoir, showing the external morphological features and internal structure and attribute information of the coal seam geological body, which is of practical significance.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13;P628.3
本文编号：2159301
[Abstract]:The 3D modeling and visualization of coal reservoir is an important link in the analysis and numerical simulation of coal bed gas production. Although the 3D modeling and visualization of the coal seam geological body, experts and scholars at home and abroad put forward a lot of theoretical methods, but the data storage method of the upper bottom surface of the corner grid technology is more suitable for coal storage. The stratified structure of the layer itself. It is of great practical significance to store the data of a large number of sampling points, the data of the contour lines and so on, and to establish a three-dimensional model and visualization method in the form of existing data. Therefore, the paper introduces the angle grid model after studying and analyzing the methods and theories of various three-dimensional modeling. The generation method of corner grid is studied, and the process and key technical problems of building 3D structure model and attribute model based on corner grid are emphatically expounded based on Surfer level modeling. According to the earlier requirement analysis, VS2010 is used as software development platform, and coal storage is developed by C# language and Open GL graphical interface. The software function mainly includes the data reading, the diversified display of the graphics, the formation of the convex hull of the plane point set and the adjustment of the grid boundary, the production of the section and so on. Finally, the three-dimensional geological model is established by combining the Surfer spatial data of the partial coal seam in the Pang Zhuang District of the Qinshui Basin. The spatial pressure distribution at different time points is analyzed. The results show that using corner grid to simulate the three-dimensional geological structure of coal reservoir has some advantages. At the same time, using Open GL to realize the three-dimensional visualization of the coal reservoir, showing the external morphological features and internal structure and attribute information of the coal seam geological body, which is of practical significance.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13;P628.3
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