| 摘要 |
According to one aspect of the invention, in an offshore pipeline laying system, the pipeline being laid on the seabed by a surface laying vessel from a first position on the seabed to a second position on the seabed with a connector on the pipeline at said second position for making a connection to a subsea structure, and presenting a length L between the seabed and the laying vessel, a method for establishing the length of pipeline required to be provided from the vessel to reach the second position on the seabed, comprises the steps of installing a first seabed transponder on the pipelay route centerline at the second position. |
