The 1822 km Sakhalin–Khabarovsk–Vladivostok (S-K-V) gas transport system, runs through some of the most remote and challenging geohazard regions in the world with 94 km of high seismic activity, more than 30 Active Tectonic Fault (ATF) zones as well as swamps and areas prone to flooding. In order to adequately secure these assets’ integrity, Gazprom, the operator required a fit for purpose continuous monitoring solution. Due to the long distances to be monitored and the linear nature of these pipelines, distributed fiber optic sensing was selected as the only solution to provide a remote monitoring operation with accurate localization/location of events.
The Omnisens Asset Integrity Monitoring (AIM) system provides strain and temperature measurement over hundreds of kilometers at meter spatial resolution. Continuous monitoring using fiber optic sensing along the pipeline, detects the earliest instance of pipeline deformation and ground movement in the highest risk areas. Using fibers in a nearby telecoms cable as temperature sensors, detection of leaks or water flooding is also possible.
This scalable monitoring solution was installed and commissioned in 2012 and will provide early warning of abnormal events allowing the operator to take preventive mitigation measures in response to these critical geohazards.