CORROSION INHIBITOR SOLUTION INTRODUCED INTO PIPELINE MANIFOLD FOR CORROSION PROTECTION
Vessel Construction
Pipeline “A”: 12” diameter, 300-foot length, Out-of-Service Pipeline “B”: 6” diameter, 20-30 foot length, Out-of-Service
Port Details
2” flanged ball valves for injection on 12” line, 2” NPT ball valve for injection on 6” line.
Project Installation Overview
Injection of the corrosion inhibitor compounds was initiated and completed.
The corrosion inhibitor solution mixture of FVS and FAN-5 was split equally between two large tanks filled with potable water and slowly mixed into the tanks until dissolved completely.
About 93.75% of this corrosion-inhibiting solution mixture was injected into Pipeline “A” (12” dia.) at three separate locations, and the remaining ~6.25% was injected into Pipeline “B” (6” dia.). There were a total of 3 injection points along the 12” line and a single injection along the 6” line.
The 12” line received ~68.75% of the solution mixture at injection point 1 (high side inside the terminal), ~6.25% of the solution mixture at point 2 (high side inside the terminal but short ~20-ft section), and ~18.75% of the solution mixture at point 3 (outside of main terminal fence). The 6” line received ~6.25% of the solution mixture at a single high-side injection point outside of the main terminal fence. All injections were completed successfully.
