Transneft undertakes geotechnical monitoring of oil trunk pipeline
Published by Lydia Woellwarth,
Editor
World Pipelines,
Transneft Siberia has started the spring cycle of geotechnical monitoring of the Zapolyarye-Purpe oil trunk pipeline’s facilities. The oil pipeline corridor crosses areas of perennially frozen ground, where dangerous geological processes associated with thawing, erosion and displacement develop. In order to monitor these processes affecting safe operation of the oil trunk pipeline, a special system has been developed. It includes technical diagnostics of the oil pipeline, analysis of its spatial position and of parameters characterising hydrogeological conditions of the pipelaying.
The geotechnical monitoring system provides for continuous automatic data collection and periodic monitoring of parameters. Twice a year, specialists measure the temperature of perennially frozen soils using thermometric wells, carry out inline inspection of the oil pipeline to determine the spatial position, arrange control of the horizontal location and elevation of the pipeline and PS facilities.
These measures allow to increase the accuracy of determining the spatial position of the pipeline, to calibrate calculation models on the basis of natural data and, accordingly, to reduce the risks of deformation of the pipeline. The corridor is also being surveyed from aircrafts using the innovative technology of aerial laser scanning and digital aerial photography of ultra-high resolution.
Compared to similar traditional methods, the effectiveness of such a monitoring system can reduce operating costs more than four times.
The results of measurements and surveys are recorded in an information database, where they are systematised. The data obtained are the basis for comprehensive analysis of the current technical condition of the oil pipeline’s facilities and the forecast of its change under the planned operating conditions.
The purpose of the works is to ensure safe operation of the Zapolyarye-Purpe oil trunk pipeline in accordance with the industrial and environmental safety requirements of Transneft Siberia.
Read the article online at: https://www.worldpipelines.com/business-news/17042020/transneft-undertakes-geotechnical-monitoring-of-oil-trunk-pipeline/
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