公开(公告)号：US10364916B2

公开(公告)日：2019-07-30

申请号：US15300607

申请日：2014-03-31

Applicant: Statoil Petroleum AS

Inventor： Johan K. Moen ,  Geir Endal ,  Rolf Morten Nes ,  Ståle Størkersen

IPC: F16L1/26 ,  F16L1/16 ,  F16L1/24 ,  E21B43/013

Abstract: A method of installing a subsea pipeline having a direct tie-in to a subsea structure includes, 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 the region to increase its radius of curvature.