Abstract

The pipeline geotechnical and environmental risk management supported by GIS
Track: Pipeline and Gas Utilities
Authors: oswaldo augusto filho

The paper presents the development of a decision support system for the management of geotechnical and environmental risks in oil pipelines using a geographical information system (GIS).
The system has a customized menu with15 projects that provide different types of research and analysis tools. They can be viewed either on a monitor or in print.
The risk assessment was based mainly on qualitative models (relative numeric weights and multicriteria decision analysis) and considered pluvial erosion, slope movements, soil corrosion and third party activities.
The system covers a 48.5 km long section of the São Paulo to Brasília (OSBRA) oil pipeline, which crosses three municipalities in the northeast region of the São Paulo state (Brazil) and represents an area of 205.8 km2. The spatial database was created using geoprocessing procedures, surface and subsurface investigations and geotechnical reports. The maps (information plans) were produced at a scale of 1:10,000.