The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2025
Filed:
Feb. 24, 2021
Subsea 7 Norway As, Stavanger, NO;
Christian Linde Olsen, Stavanger, NO;
Fartein Thorkildsen, Sola, NO;
SUBSEA 7 NORWAY AS, Stavanger, NO;
Abstract
A subsea pipeline () has a friction-reducing outer coating, treatment or finish () that extends along discrete regions mutually spaced along the length of the pipeline. During laying, curvature is imparted to the pipeline () along its length, for example by the residual curvature method or by snake-lay, to create expansion loops () of increased curvature relative to intermediate portions () of the pipeline () that join those loops (). Each of the loops () is coincident with a respective one of the regions that bear the friction-reducing outer coating, treatment or finish (). This facilitates lateral movement of the loops () relative to the seabed () to mitigate and control buckling in use of the pipeline ().