Laying of underwater pipelines

Details Laying of underwater pipelines Laying of underwater pipelines

1977-01-05

1978-06-27

Downey, Kenneth

61112, F16L 100, B63B 3504

Patent

active

040967050

ABSTRACT:
For laying a pipeline on the bed of the sea, a plurality of pipeline sections are successively towed by a tug exerting a traction effort at a point spaced to the rear of the front end of a pipeline section being towed, while another tug exerts a holding effort at a point spaced in front of the rear end, the front and rear ends being maintained near to the surface by a system of floats and trail-ropes and the intermediate portion of the pipeline section being ballasted so as to be supported on the sea bed, whereafter the front end of the pipeline section is welded to the rear end of a preceding section, and so on.

REFERENCES:
patent: 2318150 (1943-05-01), Foss
patent: 3133421 (1964-05-01), Lamy et al.
patent: 3466881 (1969-09-01), Lamy
patent: 3477696 (1969-11-01), Walstrom
patent: 3835656 (1974-09-01), McDermott
patent: 3849997 (1974-11-01), Gower
patent: 4051687 (1977-10-01), Ells

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