海洋天然气水合物三维地质建模研究

发布时间：2018-05-20 06:12

本文选题：天然气水合物 + 三维建模　；参考：《中国石油大学(华东)》2014年硕士论文

【摘要】：天然气水合物是21世纪一种具有巨大潜在价值的未来能源,在能源危机的今天已经引起各国政府和科研部门的重视。我国针对海域天然气水合物陆续启动大型调查研究项目118专项和127工程。随着勘探调查程度的深入,将产生大量水合物数据,合理有效组织利用已经获取的数据进行天然气水合物特性规律分析、资源预测与评价,减少海洋勘探成本,是目前广大海洋天然气水合物科技工作者必须要解决的重要问题。三维建模技术在油气田和矿产资源领域发挥了巨大作用,在天然气水合物研究过程中也具有重要的应用价值。但目前针对地学领域的三维建模大多依赖于专业的软件如Petrel、Eclipse、GOCAD等,在水合物勘查初期,数据不完备的情况下,这些软件无法满足水合物相关数据三维表达的需要。此外,水合物地质地球物理,地球化学研究成果有很大一部分以表、矢量图、栅格图等形式存储在地理空间数据库中,二三维数据存储、管理和可视化平台的不一致性为水合物综合研究带来了很大的不便。本文以ESRI平台为例,进行基于GIS的天然气水合物三维建模可视化研究,具有一定的研究意义和应用价值。主要研究内容有:1、天然气水合物三维建模基础研究。对天然气水合物勘查业务和数据进行了详细分析,并总结了常用的三维空间数据模型(面模型、体模型和混合模型)及建模方法。2、基于ArcGIS三维地质体模型构建。在对利用ArcGIS进行三维建模的优缺点进行分析的基础上,研究基于ArcGIS的体元(GTP模型和GeoCellular模型)建模方法。3、海洋天然气水合物多尺度建模策略。首先以井筒数据和Petrel地质模型数据为例,研究基于ArcGIS关键地质信息建模可视化,然后在对水合物数据多源多尺度特征分析的基础上,初步研究水合物数据多尺度建模表达策略。4、海洋天然气水合物三维地质建模可视化原型系统。设计并搭建了具有三维建模、数据库管理、综合展示等功能的海洋天然气水合物三维建模可视化原型系统,为天然气水合物数据有效利用和综合研究奠定基础。
[Abstract]:Natural gas hydrate is a kind of future energy with great potential value in the 21st century, which has attracted the attention of governments and scientific research departments in today's energy crisis. China has launched 118 and 127 projects for natural gas hydrate in the sea area. With the deepening of exploration and investigation, a large amount of hydrate data will be produced, and the obtained data will be reasonably and effectively used to analyze the characteristics of natural gas hydrate, predict and evaluate the resources, and reduce the cost of marine exploration. It is an important problem that must be solved by marine gas hydrate scientists and technicians at present. Three-dimensional modeling technology plays an important role in the fields of oil and gas fields and mineral resources, and also has an important application value in the process of gas hydrate research. At present, however, most of the 3D modeling in geoscience field depends on professional software such as Petrelli Eclipse GOCAD. In the initial stage of hydrate exploration, these software can not meet the needs of 3D representation of hydrate related data. In addition, a large part of the results of geophysics and geochemistry of hydrate are stored in geospatial databases in the form of tables, vector maps, grid maps, etc. The inconsistency of management and visualization platform brings great inconvenience to hydrate synthesis research. Taking the ESRI platform as an example, the visualization of 3D modeling of gas hydrate based on GIS is studied in this paper, which has certain significance and application value. The main research contents are: 1, 3 D modeling of natural gas hydrate. The business and data of gas hydrate exploration are analyzed in detail, and three dimensional spatial data models (surface model, volume model and mixed model) and modeling method. 2 are summarized, which are based on ArcGIS 3D geological body model. Based on the analysis of the advantages and disadvantages of 3D modeling using ArcGIS, this paper studies the modeling method of ArcGIS based on ArcGIS and GeoCellular model, and the multi-scale modeling strategy of marine gas hydrate. Firstly, taking wellbore data and Petrel geological model data as examples, the modeling visualization based on ArcGIS key geological information is studied, and then the multi-source and multi-scale characteristic analysis of hydrate data is presented. The strategy of multi-scale modeling and expression of hydrate data .4. the visualization prototype system for 3D geological modeling of marine gas hydrate is studied. A visualization prototype system for 3D modeling, database management and comprehensive display of marine gas hydrate is designed and built, which lays a foundation for the effective utilization and comprehensive study of gas hydrate data.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：P744.4;P628

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