基于录井数据的三维可视化方法研究

发布时间：2018-03-06 22:06

本文选题：钻孔数据　切入点：三维地质建模　出处：《大连海事大学》2015年硕士论文　论文类型：学位论文

【摘要】：三维地质建模及可视化技术是当前石油勘探等领域的热点技术,它不仅可以解决石油勘探等领域所面临的技术难题,而且也具有很高的理论研究价值。由于在地质建模过程中针对原始数据的预处理,往往需要专业人员根据钻孔信息,结合专家经验,并根据传统的工程勘察二维图,进行地层划分和空间解释,所以很难根据钻孔信息自动进行地层划分。同时,在对虚拟钻孔数据进行插值时,也不能保证地层分配的准确性。针对上述问题,本文综合运用已有的理论与实际成果,摒弃传统的二维图分层方法,利用DEM内插算法,构建多层的规则DEM,并通过拟合地质函数解决地层层面相交问题。通过技术对比分析,本文选择较为流行的不规则网格TIN三角划分来简化地层界面,并在传统TIN数据结构中加入层编号,以GTP模型为基础,结合TIN三角划分,根据层编号由上至下逐层链接拓扑,建立了一个基于录井实际数据的三维模型,解决了传统GTP模型因其具有广义三棱柱体的特性而在显示过程中容易出现空洞等实际问题。实践表明,本文所提出的依据混合模型进行建模并可视化的技术满足录井企业的真实需求,是一个高效、可行的解决方案。
[Abstract]:The 3D geological modeling and visualization technology is a hotspot of current oil exploration and other fields, it can not only solve the technical problems of petroleum exploration in the field, but also has a high research value. The pretreatment for the raw data in geological modeling process, often need professional personnel according to the drilling information, combined with the expert experience, and according to the 2D pattern of traditional engineering survey, stratigraphic division and spatial interpretation, so it is difficult to drill hole information automatically according to the stratigraphic division. At the same time, the interpolation of virtual borehole data, can not guarantee the accuracy of formation distribution. According to the above problems, this paper uses existing theories and practical results, abandon the two-dimensional the traditional method of hierarchical graph, using DEM interpolation algorithm, constructing multi-layer rules of DEM, and through the fitting function to solve the geological problems. Through the layers to faces This paper analyzed and compared, choose the more popular irregular grid TIN triangulation to simplify the formation interface, and add layer number in the traditional TIN data structure, based on GTP model, combined with the TIN triangulation, according to the number of layers from top to bottom layer link topology, established a three-dimensional model based on actual logging data, solve the traditional GTP model due to its characteristics of generalized triangular prism and the display process is prone to empty problems. Practice shows that based on the hybrid model presented in this paper are the real needs of modeling and visualization technology to meet the logging enterprises, is an efficient and feasible solution.

【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P628.3;TE142

【引证文献】