The Research Of Complex Three-Dimensional Stratum Modeling And Visualization

Seismic interpretation map is commonly used in oil industry exploration and development. With the rapid development of computer technology and information technology, the traditional 2D methods can not meet the demand of multi-directional, multi-level view of the stratigraphic structure. Modeling complex stratum showed on the seismic exploration map, displaying and quering it in three-dimension, which can effectively provide decision support for the oil and gas exploration. Therefore, this paper made a detailed study on the complex stratum integrated data model and the three-dimensional visualization, furthermore, we developed marine geology three-dimensional visualization system based on this study (Short for MG3D).1. Introduced the modeling method of the complex stratum. Based on the demand analysis of seismic exploration data, this article made a study of stratum\fault and well modeling, drew up integrated data model structure based on the demand of visual display, and achieved the data interface of modeling and visualization.2. Summed up the characteristics of open inventor 3D engine and the key technologies of application. This paper introduced the development, the main structure and characteristics of Open Inventor, and the key technologies of three-dimensional visualization, which are used in Open Inventor.3. Researched the designing method of MG3D system based on complex fault modeling and 3D visualization display. Combing with the practical application demand of marine geology visualization software , this article proposed overall system architecture design, and introduced its various functional modules, Meanwhile, the system detail file structure, data processing, OIV scene graph, and program structure are designed.4. Developed marine geology three-dimensional visualization system. Based on the NET platform, Marine geology three-dimensional visualization system is developed using C# development language. This system includes model building module, model editing module and visual display module, which realize the document management, object management, view control, property management and model management functions.Through the actual application of seismic interpretation data, it shows the marine geology three-dimensional visualization system well support complex three-dimensional stratum modeling, and display the three-dimensional visualization of integrated data model accurately, which indicate the system has a certain degree of independence and a better general performance, therefore, it can be widely used in the area of petroleum geology.