| 2000 №09 (26) | 2000 №09 (28) |
The Paton Welding Journal, 2000, #9, 161-163 pages
Ensuring of safe operation and extension of service life of main pipelines
K.V. Chernyaev, E.S. Vasin
Open Joint-Stock Society of the Diagnostics Centre «Diascan», Lukhovitsy, RussiaAbstract
The Joint-Stock Company Transneft developed and put into operation the system for ensuring safe operation and extension of service life of main pipelines. The system is based on integrated four-level diagnostic monitoring using in-pipe high-resolution diagnostic gears, allowing all types of defects which are the main causes of accidents to be revealed. Repair of pipelines is planned on the basis of estimation of an extent of danger of defects revealed. The composite-coupling technology is employed for selective repair of pipelines without any interruption of pumping. The system makes it possible to fundamentally decrease the rate of accidents at main oil pipelines and provides substantial cost effectiveness.
Keywords: main pipelines, in-pipe diagnostics, technical state, selective repair, monitoring