The design of subsea routes or any subsea constructions normally takes a long period of time to be completed. When a pre-engineering survey for designing a route is done, since noumerous events and changes might have taken place on the seabed in the long run, it is necessary to perform another survey within a brief period of time which is called pre-installation survey. |
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Final text report “Pre-installation survey final report” | ||
Alignment sheets |