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1. (WO2018220357) FLEXIBLE PIPE CONNECTOR SUITABLE FOR EFFECTING CONTROL AND FORCED CIRCULATION OF ANTICORROSIVE FLUIDS THROUGH THE ANNULUS OF THE FLEXIBLE PIPE

Pub. No.:    WO/2018/220357    International Application No.:    PCT/GB2018/051459
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu May 31 01:59:59 CEST 2018
IPC: E21B 17/01
E21B 17/18
F16L 1/16
F16L 11/08
F16L 11/12
F16L 11/22
F16L 33/01
Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
ROBERTS, Mark Peter
Inventors: CARPIGIANI DE ALMEIDA, Marcos
CAMEIRO CAMPELLO, Goerge
RIBEIRO, Jonatas
MELLO SOBREIRA, Rafael Guimarães de
LOUREIRO JUNIOR, Walter Carrara
PIZA PAES, Marcelo Torres
Title: FLEXIBLE PIPE CONNECTOR SUITABLE FOR EFFECTING CONTROL AND FORCED CIRCULATION OF ANTICORROSIVE FLUIDS THROUGH THE ANNULUS OF THE FLEXIBLE PIPE
Abstract:
Flexible pipe connector suitable for effecting control and forced circulation of corrosion-inhibiting fluids through an annulus between inner and outer sheaths of a flexible pipe comprising multiple connected segments, the flexible pipe connector comprising: an attachment mechanism for connecting to an end of a segment of flexible pipe: at least two distributing rings for distributing corrosion-inhibiting fluid, the at least two rings configured to be positioned in the annulus of the flexible pipe; wherein at least one distributing ring has fluidic access to the annulus of the flexible pipe, this distributing ring being configured to be connected fluidically to at least one distributing ring, in an adjacent connector, that does not have fluidic access to the flexible pipe annulus; and at least one distributing ring that does not have fluidic access to the annulus of the flexible pipe, this distributing ring being configured to be connected fluidically to at least one distributing ring, in an adjacent connector, that comprises fluidic access to the flexible pipe annulus.