Pipetech was approached by KTN AS on behalf of CNRI UK to perform high pressure Aqua Milling cleaning of its 12” Lyell Riser on the Ninian South platform prior to UT inspection.
A specialist Aqua Milling team completed cleaning from entry point, 320 meters down to a subsea manifold and back. Aqua Milling on deployment and retrieval consisted of a polishing run to prepare the walls for UT inspection. Cleaning at a rate of 1 foot per minute to ensure total effective cleaning of pipe wall internal. All waste / rust deposits were collected via EPAT and fluids pumped to the closed drains system.
Long Reach Aqua Milling®
Personnel – Day Shift
1 Specialist Cleaning Supervisor
1 Specialist Cleaning Technician
1 Specialist Cleaning Operative
Duration - 48 hours cleaning time
"Great progress, brilliant effort from the Pipetech team."