本文選題：石油勘探　切入點：三維地質(zhì)建模　出處：《浙江大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：在石油勘探領(lǐng)域中,常常需要利用各種不同的勘探技術(shù)來獲取地質(zhì)數(shù)據(jù),再利用計算機可視化技術(shù)對復(fù)雜的三維地質(zhì)模型進行表示,從而讓地質(zhì)學(xué)家能夠更加直觀地觀察地質(zhì)環(huán)境的構(gòu)造和特征,最終更好地確定油氣資源的位置。地質(zhì)數(shù)據(jù)的可視化是通過對地下地質(zhì)結(jié)構(gòu)進行三維地質(zhì)建模來完成的。由于不同屬性的物質(zhì)區(qū)域有相互接觸的關(guān)系,所以不能單獨對每個區(qū)域進行建模,而應(yīng)將其組織在一起進行共同操作。本文在研究和分析現(xiàn)有網(wǎng)格變形技術(shù)的基礎(chǔ)上,提出利用網(wǎng)格變形來建立地下地質(zhì)結(jié)構(gòu)模型的算法。首先使用一個網(wǎng)格模型來表示地下地質(zhì)結(jié)構(gòu)的整體形狀,然后通過對該模型進行網(wǎng)格切割來得到地質(zhì)結(jié)構(gòu)中各個子區(qū)域的網(wǎng)格模型,由于實際中每個區(qū)域形狀并不規(guī)整,最后需要通過網(wǎng)格變形來調(diào)整模型形狀。考慮到地下地質(zhì)結(jié)構(gòu)的相互接觸性,一個網(wǎng)格模型變形時,與它相鄰的網(wǎng)格模型也應(yīng)有相應(yīng)變形,本文利用二叉樹結(jié)構(gòu)來建立模型之間的層次關(guān)系并建立相關(guān)模型之間的頂點對應(yīng)關(guān)系,從而在一個網(wǎng)格模型進行變形之后,自動進行變形傳遞改變周圍網(wǎng)格模型的形狀。實驗結(jié)果表明,通過本文的方法,可以有效地建立較為復(fù)雜的地下地質(zhì)結(jié)構(gòu)。
[Abstract]:In the field of oil exploration, often need to obtain data using various geological exploration techniques, and then by using the computer visualization technique for complex three-dimensional geological model, allowing geologists to observe the structure and characteristics of the geological environment, and ultimately to better determine the oil and gas resources. Geological data visualization is to by 3D geological modeling of the underground geological structure. Because of the contact area of the different attributes of the material, it is not alone in each region is modeled, and it should be organized together by common operation. This paper analysis and based on the existing grid deformation technology, proposed the use of mesh deformation to establish geological the underground structure model algorithm. First use a grid model to represent the overall shape of the underground geological structure, and then through the The model of mesh cutting to get sub grid model of regional geological structure, because each region in the actual shape is not regular, the need to adjust the model shape through the mesh deformation. In consideration of the mutual contact of the underground geological structure, the deformation of a mesh model, mesh and its adjacent should also have the corresponding deformation in this paper, using two binary tree structure to establish the hierarchical relationship between the models and the corresponding relationship between the vertex model, after which deform in a mesh model, automatically change the deformation transfer week lattice shape fence. The experimental results show that this method can effectively establish the underground geological structure is more complex..

【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13;TP391.41

【參考文獻】

相關(guān)期刊論文 前1條

1 ;嵌入?yún)?shù)空間的曲面控制自由變形方法[J];計算機輔助設(shè)計與圖形學(xué)學(xué)報;1998年03期

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本文編號：1592305