Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent
1977-03-21
1978-10-03
Stein, Mervin
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Submerging, raising, or manipulating line of pipe or cable...
405170, 405158, F16L 104
Patent
active
041176928
ABSTRACT:
A method and system for producing and laying pipelines on the sea bottom. A continuous pipeline is produced on land near a quay and thereafter wound onto a floating pipeline storage reel. When a suitable pipeline length has been wound up onto the reel, the same is released from land and towed to the pipelaying site where the floating reel is coupled to a pipelaying vessel, whereafter the pipeline is unwound from the reel, straightened out and laid on the sea bed while the vessel is moved in the laying direction. The pipeline is laid on the sea with the aid of a pipeline carrier means attached to said vessel. This carrier means comprises a plurality of supporting yokes suspended one after the other from a common supporting cable attached to the vessel. The yokes are connected by means of two positioning cables keeping the yokes transversely to the supporting cable. Each yoke has an opening for the pipeline, the bottom of which opening is defined by a supporting roller for carrying the pipeline during laying. At the end portion of the carrier means there is attached to the supporting and positioning cables a ploughing means engaging the sea bed thereby subjecting the carrier means to a braking force keeping said means stretched during laying, and providing at the same time by its ploughing action a substantially smooth supporting area for the pipeline on the sea bed. When the pipeline length has been unwound from the floating reel attached to the vessel and laid down on the sea bed, the empty reel is disconnected from the vessel and transported back to land for a possible recharging with a new length of pipeline. As soon as said empty reel has been disconnected from the vessel, another floating reel loaded with pipeline can be connected to the vessel for continuing the laying of pipeline.
REFERENCES:
patent: RE28410 (1975-05-01), Cox et al.
patent: 3540226 (1970-11-01), Sherrod
Corbin David H.
Stein Mervin
LandOfFree
Method and a system for producing and laying oil or gas pipeline does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and a system for producing and laying oil or gas pipeline, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and a system for producing and laying oil or gas pipeline will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1795969