Sub Sea Installation Support
Any structure that needs to be installed on the seafloor can be guided by a real-time imaging sonar, besides being positioned by acoustic positioning technology. Imaging sonar technology offers some advantages even though acoustic positioning systems are in use. Imaging sonar systems offer real-time visual control of:
- Structures being installed in close proximity to another structure. Example, installations of crossing mattresses.
- The structure mating with another structure such as pulling an umbilical into a structure.
- The visibility is zero.
- Installation of pipeline and umbilicals in pre-constructed trenches. The lay vessel can be guided in real-time by transmitting the sonar image from a touch down monitoring vessel to the lay vessel. Since the sonar looks ahead, it will be detected if the pipeline is getting off the center line compared to the trench before the pipeline touches down in the trench. This will obviously save valuable time, as the lay vessel will not have to back-up if it is detected that the pipeline is approaching the edges of the trench.
These are examples of projects where the SeaBat imaging sonar technology has been used with great success for the installation contractors.
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