Process and system for lifting submarine pipelines

Details Process and system for lifting submarine pipelines Process and system for lifting submarine pipelines

1974-02-22

1976-07-27

Shapiro, Jacob

Handling: hand and hoist-line implements

Article carrier gripped and carried by hand

Convertible to, or useable as, different device or different...

294 66R, F16L 100

Patent

active

039712281

ABSTRACT:
A closed end of a pipeline submerged in water to a depth of upwards of about 125 meters if lifted to the surface and recovered by exerting a pull on said end by means of a capstan mounted on a floating pontoon and having an adjustable tension, and by simultaneously exerting a lift on said pipeline at said end and at least one point spaced from said end by means of a set of cranes mounted on said pontoon, at least one of said cranes being mounted for movement on said pontoon and adapted to exert a lift at said end of the pipeline, and at least one other crane being fixed to said pontoon and adapted to exert a lift at said end and at the point spaced from said end of the pipeline, so that the length of the pipeline between said point and said end may be removed from the balance of the pipeline.

REFERENCES:
patent: 3690111 (1972-09-01), Matthews, Jr.
patent: 3751932 (1973-08-01), Matthews, Jr.

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