US 12,146,857 B2
System and method for detecting flooding in a flexible pipe from a flexible pipe connector
Paulo Roberto Santos Poli, Rio de Janeiro (BR); Nei Mariano Da Fonseca Junior, Rio de Janeiro (BR); Marcos Antonio Da Silva, Duque de Caxias (BR); João Marcio De Castilho Santos, Rio de Janeiro (BR); Gustavo Pinto Pires, Rio de Janeiro (BR); and Carlos Eduardo Maia De Souza, Rio de Janeiro (BR)
Assigned to PETRÓLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR)
Appl. No. 17/278,111
Filed by PETRÓLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR)
PCT Filed Sep. 20, 2019, PCT No. PCT/BR2019/050414
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/056480, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 1020180692429 (BR), filed on Sep. 21, 2018.
Prior Publication US 2022/0128512 A1, Apr. 28, 2022
Int. Cl. G01N 29/04 (2006.01); E21B 47/107 (2012.01); E21B 47/117 (2012.01); G01M 3/24 (2006.01); G01N 29/09 (2006.01)
CPC G01N 29/043 (2013.01) [E21B 47/107 (2020.05); E21B 47/117 (2020.05); G01M 3/243 (2013.01); G01N 29/09 (2013.01); G01N 2291/044 (2013.01); G01N 2291/048 (2013.01); G01N 2291/2634 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A system for detecting flooding in a flexible pipe from a connector of the flexible pipe, wherein it comprises:
an ROV comprising an arm element designed to move an ultrasound sensor, until the ultrasound sensor comes into contact with the connector of the flexible pipe; and
means for taking ultrasound measurements with respect to a state of an annulus of the flexible pipe from a chamber of the connector of the flexible pipe in contact with the annulus of the flexible pipe,
wherein the connector of the flexible pipe comprises an ultrasound device designed to allow inspection by ultrasound, the ultrasound device identifying a presence of liquid in the chamber of the connector of the flexible pipe in contact with the annulus of the flexible pipe.