Exploitation of pipelines on the technical condition ensures optimum spending of funds, necessary for their maintenance and repair. Due to the fact, that service life of many pipelines exceeds the estimated value, meaning and importance of non-destructive testing and technical diagnostics, as well as the economic efficiency of their use only increase. One of the main areas, developed by our company, is determination of the technical condition of underground pipelines, unprepared for in-line flaw detection. These pipelines include almost all branches of gas pipelines, connection pipes, some sections of main gas pipelines and other objects. Integrated ground-based diagnostics technique of such gas pipelines includes the following steps: engineering, executive and operational documentation, as well as the results of previous inspection of the pipeline are studied for the entire period of operation; integrated ground-based diagnostics without opening of the pipeline with using electrometric, magnetometric, radio are performed; the bore pits are appointed in located potentially dangerous areas by results of the analysis of documentation and ground-based diagnostics; diagnostics of the insulating coating, base metal and welded joints is performed in the bore pits, and if necessary mechanical stresses and other physical and mechanical parameters of the metal are measured; works on the diagnostics of underground gas pipeline are completed with the report, which includes a list of all defective areas, diagrams, schemas, maps and graphics, calculations of insulating cover's degradation on the entire length of the pipeline, with results of bore pits' screening, findings and actions, necessary to ensure the continued safe operation.
Integrated diagnostics of branches of main gas pipelines
Integrierte Diagnose von Verzweigungen an Haupt-Gaspipelines
2010
4 Seiten
Conference paper
Storage medium
English
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