US 11,920,722 B2
Intervention drive system comprising an umbilical
Hugo Francisco Lisboa Santos, Rio de Janeiro (BR); Ney Robinson Salvi Dos Reis, Rio de Janeiro (BR); Maurício Galassi, Rio de Janeiro (BR); Lincoln Homero Thome Ferreira, Rio de Janeiro (BR); Igor Mendes Ursine Krettli, Rio de Janeiro (BR); Hardy Leonardo Da Cunha Pereira Pinto, Rio de Janeiro (BR); Tiago Becker, Porto Alegre (BR); Rafael Antônio Comparsi Laranja, Porto Alegre (BR); Luciana Porcher Nedel, Porto Alegre (BR); Laura Amaya Torres, Porto Alegre (BR); Jose Abel Ticona Larico, Porto Alegre (BR); Jaime Andrés Riascos Salas, Porto Alegre (BR); Gabrielle Almeida De Souza, Porto Alegre (BR); Filipe Paixão Geiger, Porto Alegre (BR); Fabiano Disconzi Wildner, Porto Alegre (BR); Eduardo Antonio Wink De Menezes, Porto Alegre (BR); Eduardo Donadel Basso, Porto Alegre (BR); David Steeven Villa Salazar, Porto Alegre (BR); Eduardo André Perondi, Porto Alegre (BR); Anderson Maciel, Porto Alegre (BR); Dante Augusto Couto Barone, Porto Alegre (BR); and Juliano Morato Franz, Halifax (CA)
Assigned to Petróleo Brasileiro S.A.—Petrobras, Rio de Janeiro (BR)
Appl. No. 17/288,662
Filed by PETRÓLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR); and UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL—UFRGS, Porto Alegre (BR)
PCT Filed Oct. 24, 2019, PCT No. PCT/BR2019/050461
§ 371(c)(1), (2) Date Apr. 26, 2021,
PCT Pub. No. WO2020/082149, PCT Pub. Date Apr. 30, 2020.
Claims priority of application No. 1020180720627 (BR), filed on Oct. 26, 2018.
Prior Publication US 2021/0396342 A1, Dec. 23, 2021
Int. Cl. B08B 9/055 (2006.01); B08B 9/053 (2006.01); F16L 55/30 (2006.01); F16L 55/46 (2006.01); F16L 101/12 (2006.01)
CPC F16L 55/46 (2013.01) [B08B 9/0535 (2013.01); B08B 9/055 (2013.01); B08B 2209/045 (2013.01); B08B 2209/055 (2013.01); F16L 55/30 (2013.01); F16L 2101/12 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An intervention drive pig comprising an umbilical comprising a first material of low density and wherein the umbilical comprises an external covering of a second material of low coefficient of friction, wherein the second material comprises polyvinylidene fluoride (PVDF) or molybdenum disulphide.