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FREMG VED FREMST OG LEGGING AV EN ROERLEDN ELLER EN KABEL UNDER VANN, FARTOEY TIL BRUK VED LEGGING UNDER VANN AV EN PAA EN TROMMEL OMBORD I FARTOEYET KVEILET LEDNING, OG LANDBASE FOR FREMST AV EN ROERLEDN SOM KVEILES PAA EN TROMMEL.
FREMG VED FREMST OG LEGGING AV EN ROERLEDN ELLER EN KABEL UNDER VANN, FARTOEY TIL BRUK VED LEGGING UNDER VANN AV EN PAA EN TROMMEL OMBORD I FARTOEYET KVEILET LEDNING, OG LANDBASE FOR FREMST AV EN ROERLEDN SOM KVEILES PAA EN TROMMEL.
The invention relates to a method in production and laying a pipeline or a cable under water, comprising production of the pipeline/cable in a desired length, winding it onto a drum, transporting the drum and laying ramp on board a vessel and laying from the drum while the vessel is moving. Winding onto drum (9) is carried out with the drum being mounted in and carried by a drum carrier (10) on land. At a desired time the drum with wound pipeline is taken on board the vessel (13) by sliding drum carrier (10) on a pier (12) or the like, which in the horizontal plane has an overlapping positional cooperation with the correctly ballasted vessel (13,14) to a position in which drum carrier (10) can be taken over by the vessel (13) by a vertical relative movement between drum carrier (10) and a supporting means for it on the vessel. Drum carrier (10) can then, if desired, be slid on supporting means (15) to a desired position on the vessel and be made fast there. A vessel for carrying out the method is also disclosed. And a new ramp unit (26) for use in winding off a pipeline or a cable from or onto the drum is also disclosed.
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