APPLICATION OF SES-2000 SUB-BOTTOM PROFILER TO DETECTION OF LNG SUBMARINE PIPELINES IN THE OFFSHORE FUJIAN PROVINCE

In order to ensure the safety of submarine oil and gas pipelines, it is importantto knowthe status of submarine pipelines with time.SES-2000 acoustic sub-bottom profiler is selected as the tool for a case study in Meizhou Bay of Fujian province. In this paper, we briefly introduced the principles and features of the sub-bottom profiler, and presented the results of the study case. Buried, exposed and suspended submarine pipelines are effectively identified, and especially the pipe system after sand bag back filling is effectively detected. The application results suggest that SES-2000 sub-bottom profiler has high resolution and strong penetration. It may effectively acquire high-quality pipeline data for application and provide scientific evidences and technical supports for the maintenance of submarine pipelines.