Cable-laying apparatus and method

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...

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405164, F16L 112

Patent

active

059716657

ABSTRACT:
A cable-laying technique and apparatus are disclosed. A base is lowered to the seafloor which contains multiple cable reels, each of which is preconnected to a surface production facility. An articulated plow is lowered onto the base and manipulates a reel from its cradle. The plow is pulled by a surface vessel after obtaining the cable reel from the cradle. The cable is buried as it is payed out with the vessel pulling the plow. The plow is returned by the vessel to the base where it grabs another reel and the process is repeated. The cable does not need to be designed to support its own weight because it is payed out from the reel supported by the plow as opposed to being on the deck of the boat. Similarly, the boat structure required to perform the method is simplified due to the reduction in weight and bulk of the reels for the cables.

REFERENCES:
patent: 3512367 (1970-05-01), McLallen, Jr.
patent: 4892443 (1990-01-01), Kunze et al.
patent: 5722793 (1998-03-01), Peterson

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