Abstract:

The operations including fit-up inspection, welding process monitoring and visual inspection during offshore oil platform steel structure welding are described. The reason of defects when some welding parameters get out of control are analyzed. Several aspects that we should pay attention to are emphasized. A method of welding quality control for oil platform steel structure is obtained, which can provide a reference for the quality assurance of offshore oil platform steel structure fabrication.

Key words: offshore oil platform, fit-up inspection, process monitoring, welding heat input, visual inspection