公开(公告)号：US11436747B2

公开(公告)日：2022-09-06

申请号：US17258518

申请日：2019-07-10

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： Vinicius Miranda Cesar ,  Saulo Andrade Pessoa ,  Judith Kelner ,  Ismael Humberto Ferreira Dos Santos ,  Eduardo Vardaro ,  Bernardo Fonseca Reis De Souza ,  Arthur Curty Saad ,  Alyson Gomes Vaillant ,  Allan Carre De Oliveira

IPC: G06T7/60 ,  G06T7/80 ,  H04N13/239 ,  G06F30/18 ,  E21B17/01 ,  G06F113/14

Abstract: This invention provides a system and a method for supporting the operation of subsea installations for 3D reconstruction of flexible pipes (1) during a direct vertical connection operation, comprising the steps of painting the flexible pipe (1) with a specific regular pattern, and performing a 3D reconstruction of the points sampled on the flexible pipe (1) to obtain the radius of curvature of the flexible pipe (1), in which the 3D reconstruction comprises the steps of: capturing images of the flexible pipe (1) during the direct vertical connection operation; sending the captured images to a dedicated computer (4); and processing the captured images, generating information on the radius of curvature, wherein the method initially comprises at least one of the following steps: painting the bend restrictor (6) with a specific regular pattern; painting straps (71) for buoys (7) with a specific regular pattern; and painting straps (71) for the arch bend, in the event of second-end direct vertical connection.

公开(公告)号：US10330230B2

公开(公告)日：2019-06-25

申请号：US15783257

申请日：2017-10-13

Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS

Inventor： Ricardo Wagner Capllonch ,  Carlos Alberto Duarte de Lemos ,  Anderson Barata Custodio ,  Eduardo Vardaro

IPC: E21B17/01 ,  E21B19/00 ,  F16L1/23 ,  F16L33/32 ,  B63B35/44 ,  F16L23/02

Abstract: The present invention provides a system for auto-alignment and tensioning of flexible pipes (24) in a stationary production unit, said system comprising (i) at least one tensioner (10) comprising an upper cone (10s) and a lower cone (10i), the upper cone (10s) and the lower cone (10i) being fixed together and forming a symmetrical double cone structure provided with an internally hollow cylindrical opening suitable for passage of a flexible pipe (24), (ii) at least one supporting fork (12) with pivoted connection to the at least one tensioner (10) and (iii) at least one coupling device (16) which, at a first end, is connected detachably to the at least one supporting fork (12) and, at a second end, is connected to the stationary production unit. A method for installing flexible pipes by means of said system is also provided.