DEPLOYMENT AND DIRECT TIE-IN OF SUBSEA PIPELINES

A method of installing a subsea pipeline having a direct tie-in to a subsea structure. The method comprises, during introduction of the pipeline into the sea from a pipe laying vessel, applying a plastic deformation to a region of the pipeline at or close to an end of the pipeline to be tied-in and,...

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Bibliographische Detailangaben
Hauptverfasser:	STØRKERSEN, STÅLE, NES, ROLF MORTEN, MOEN, JOHAN K, ENDAL, GEIR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A method of installing a subsea pipeline having a direct tie-in to a subsea structure. The method comprises, during introduction of the pipeline into the sea from a pipe laying vessel, applying a plastic deformation to a region of the pipeline at or close to an end of the pipeline to be tied-in and, either during or following tie-in, elastically deforming said region to increase its radius of curvature. L'invention concerne un procédé d'installation d'un pipeline sous-marin doté d'un raccord direct à une structure sous-marine. Le procédé comprend, lors de l'introduction du pipeline dans la mer à partir d'un navire de pose de tuyau, l'application d'une déformation plastique à une région du pipeline au niveau, ou à proximité, d'une extrémité du pipeline devant faire l'objet du raccord et, soit pendant, soit après le raccordement, la déformation élastique de ladite région afin d'augmenter son rayon de courbure.