How is underwater pipeline located during inspections?

Underwater pipelines are commonly located during inspections through the use of sonar equipment. Sonar, which stands for Sound Navigation and Ranging, functions by sending sound waves into the water. These sound waves bounce off the underwater pipeline and return to the sonar device, allowing inspectors to determine both the presence and the precise location of the pipeline beneath the surface.

This method is particularly effective because it can cover large areas and penetrate depths where visual inspection and other means may not be feasible. Sonar technology is often preferred over methods like visual inspection, which is limited to above-water observations and cannot detect submerged structures. Additionally, while drones are becoming more common in various inspection roles, their ability to inspect underwater pipelines is limited compared to sonar, which is specifically designed for underwater applications. Although divers can provide valuable insights and conduct detailed inspections, relying solely on divers can be more dangerous and time-consuming than utilizing sonar technology.