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:
Jul. 16, 2024
Filed:
Mar. 16, 2020
Applicant:
Acergy France Sas, Suresnes, FR;
Inventors:
Alexis Wegner, Paris, FR;
Vincent Boulliat, Garches, FR;
Assignee:
ACERGY FRANCE SAS, Suresnes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/01 (2006.01); F16L 53/32 (2018.01); F16L 53/37 (2018.01); F16L 59/14 (2006.01);
U.S. Cl.
CPC ...
F16L 53/37 (2018.01); F16L 53/32 (2018.01); F16L 59/143 (2013.01); E21B 43/01 (2013.01);
Abstract
A heated subsea pipeline includes a direct electrical heating (DEH) system that heats a central major portion of the pipeline. Supplementary heating systems extend along respective end portions of the pipeline, longitudinally outboard of the central portion heated by the DEH system. A flow of heating fluid is circulated along the end portions and may be circulated through an underwater vehicle that pumps and heats the flow.