【摘要】：煤儲(chǔ)層的三維建模與可視化是進(jìn)行煤層氣排采分析與數(shù)值模擬研究的重要環(huán)節(jié),具有重要的作用。雖然煤層地質(zhì)體的三維建模和可視化,國內(nèi)外專家學(xué)者提出了很多理論方法,但是角點(diǎn)網(wǎng)格技術(shù)的上下底面數(shù)據(jù)存儲(chǔ)方法更加適合煤儲(chǔ)層本身的分層結(jié)構(gòu)特點(diǎn)。另外傳統(tǒng)煤地質(zhì)研究中存儲(chǔ)有大量采樣點(diǎn)數(shù)據(jù)、等值線數(shù)據(jù)等資料,利用已有資料形式建立三維模型及可視化方法具有重要的實(shí)際意義。因此論文在研究并分析了各種三維建模的方法理論后,介紹了角點(diǎn)網(wǎng)格模型的數(shù)據(jù)特點(diǎn)、研究了角點(diǎn)網(wǎng)格的生成方法,并重點(diǎn)闡述了基于Surfer的層面建模、基于角點(diǎn)網(wǎng)格建立三維結(jié)構(gòu)模型與屬性模型的過程及關(guān)鍵技術(shù)問題。根據(jù)前期需求分析,以VS2010為軟件開發(fā)平臺(tái),采用C#語言與Open GL圖形接口開發(fā)了煤儲(chǔ)層三維可視化軟件模型。軟件功能主要包括數(shù)據(jù)讀取、圖形的多樣化顯示、平面點(diǎn)集凸殼的生成與網(wǎng)格邊界的調(diào)整、剖切面制作等。最后,結(jié)合沁水盆地煤層氣田潘莊區(qū)部分煤層的Surfer空間數(shù)據(jù),建立三維地質(zhì)模型,經(jīng)過模擬分析,切片分析了不同時(shí)間點(diǎn)的空間壓力分布。結(jié)果表明運(yùn)用角點(diǎn)網(wǎng)格模擬煤儲(chǔ)層三維地質(zhì)結(jié)構(gòu)具有一定的優(yōu)勢(shì),同時(shí),運(yùn)用Open GL來實(shí)現(xiàn)煤儲(chǔ)層的三維可視化,展示了煤層地質(zhì)體的外部形態(tài)特征與內(nèi)部結(jié)構(gòu)和屬性信息,具有實(shí)際意義。
[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.
【學(xué)位授予單位】：中國礦業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.13;P628.3

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