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Research and Application on Oilfield GIS Spatial Data Integration Based on GML

Author: ZhangLeYing
Tutor: YuanMan
School: Daqing Petroleum Institute
Course: Petroleum Engineering Computing Technology
Keywords: Spatial Data GML GIS Data Integration DODL algorithm
CLC: TP311.52
Type: Master's thesis
Year: 2010
Downloads: 61
Quote: 2
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Abstract


With the development of the geographic information system (Geographical Information System, GIS), China Petroleum has launched a number of GIS software system, also established a different side of oilfield spatial data model, these space model is oriented to the professional , depends on the specific support platform and runtime environment, they separate, relatively closed, unable to communicate with each other and collaborate to form a spatial information silos, it is difficult to realize the sharing and interoperability of spatial data application. From the point of view of spatial data sharing between different data formats of each system is the problems to be solved in the effective use of data resources; see from the data integration point of view, with the further deepening of GIS, GIS applications need to integrate multiple data sources and in different formats. The data can be completed. In the application, the user can operate as a general database to access multi-source heterogeneous spatial database, without having to consider the data stored in the database type or physical location. This article by the Open GIS Consortium (Open GIS Consortium, OGC) Geography Markup Language (Geography Markup Language, GML) specification and architecture, GIS technology, and metadata theory, combined with the presence of a variety of spatial data by the China Petroleum the status quo of the model, the typical GIS spatial model of oilfield applications in-depth analysis to build a GML-based multi-source and heterogeneous spatial data integration model, and define a system integration framework structure, it is able to provide users with a unified flexible, transparent spatial data access interface, construct the user demand for transparent data set data source for each space to support global applications and various heterogeneous spatial data exchange and sharing. WebServices technologies to solve the problem of multi-source heterogeneous GIS spatial data map service access. Finally, based on the proposed integrated framework model, GML model, and integration of Scalable Vector Graphics SVG (Scalable Vector Graphics, SVG) technology to achieve a high-quality map display system, the system across different spatial data sources to achieve a unified WebGIS map display. Map loading speed is unsatisfactory, the map shows the course of the study found that In order to solve this problem, we propose a map-demand dynamic loading algorithm that DODL algorithm the (Dynamic On-Demand Loading, DODL), has considerably reduced the server-side resource consumption, saving resources and time when the system starts to improve system performance. The proposed integrated framework with unified GML exchange model for future oilfield spatial data sharing and interoperability into laying the foundation.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Software Engineering > Software Development
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