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.

Date of Patent:
Nov. 28, 2023

Filed:

Dec. 19, 2019
Applicant:

Subsea 7 DO Brasil Servicos Ltda, Niteroi, BR;

Inventors:

Luiz Carlos De Lemos Junior, Rio de Janeiro, BR;

Andre Ramiro Amorim, Rio de Janeiro, BR;

Gustavo Queiroz Hepner, Rio de Janeiro, BR;

Frederico Nicoletti de Fraga, Niteroi, BR;

Joao Carlos Carvalho Gouveia, Rio de Janeiro, BR;

Ivan Carlos Pimentel da Cruz, Niteroi, BR;

Yann Brouard, Velizy, FR;

Daniel Karunakaran, Tananger, NO;

Assignee:

Subsea 7 do Brasil Servicos LTDA, Rio de Janeiro, BR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/08 (2006.01); E21B 17/01 (2006.01); E21B 33/038 (2006.01); E21B 41/10 (2006.01);
U.S. Cl.
CPC ...
E21B 17/085 (2013.01); E21B 17/012 (2013.01); E21B 33/038 (2013.01); E21B 41/10 (2013.01);
Abstract

An end fitting for a subsea riser comprises an engagement head to be engaged with a subsea foundation in a vertically downward longitudinal direction. A structure of the end fitting surrounds a longitudinally extending flow axis and is arranged to bear a tensile load on a load path extending longitudinally from the engagement head parallel to the flow axis. The structure includes a pivot joint assembly having a first part attached to or integral with the engagement head and a second part pivotable relative to the first part about a centre of rotation substantially aligned with the flow axis. The structure can be fixed to the engagement head or removably attached to the engagement head. The engagement head supports an upwardly facing connector hub that is offset laterally from the flow axis. A connector pipe in fluid communication with the connector hub extends from the flow axis to the connector hub. A counterweight is opposed to the connector hub and the connector pipe about the flow axis.


Find Patent Forward Citations

Loading…