Startup and commissioning at the Dzhubga–Lazarevskoye–Sochi gas line
Basic technical characteristics
of the CMS-PST-MetriCorr®-M
| Parameter | Value |
|---|---|
| Corrosion rate, 2 channels | 0,001…50 mm/year |
| OFF potential of the structure | 0… ±3 V |
| ON potential of the structure relative to the reference electrode | 0… ±30 V |
| AC voltage on the structure relative to the reference electrode | 0… 100 V |
| AC / DC "structure - coupon" | 0…50 mА |
| Local protector’s current, up to 2 channels | 0…±1 А |
| Self-contained operation period of the underwater controller | 5 years |
Installation scheme of CMS-PST-MetriCorr-M
CMS-PST-MetriCorr®-M
The CMS-PST-MetriCorr®-M corrosion monitoring system (co-development with «Gazprom VNIIGAZ» LLC and «KATOD» CJSC) is designed for remote monitoring of corrosion parameters on the underwater steel pipelines via wireless communication channels (hydroacoustic and GSM).
CMS-PST-MetriCorr®-M general view
An underwater controller reads the monitored parameters from sensors, probes, and electrodes connected thereto to save them in the non-volatile memory according to a preset measurement schedule. After that, according to a preset data-transmission schedule, the underwater controller transmits accumulated data via hydroacoustic modems to a controller located aboard ship or on a buoy. Then, this controller relays the received data via a GSM channel to a MCS-PST monitoring and control server.