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1. (WO2018220360) PIPE FOR CONTROL AND FORCED CIRCULATION OF CORROSION-INHIBITING FLUIDS IN THE ANNULUS THEREOF
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Pub. No.: WO/2018/220360 International Application No.: PCT/GB2018/051462
Publication Date: 06.12.2018 International Filing Date: 30.05.2018
IPC:
F16L 58/00 (2006.01) ,F16L 11/08 (2006.01) ,F16L 11/20 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
58
Protection of pipes or pipe fittings against corrosion or incrustation
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
11
Hoses, i.e. flexible pipes
04
made of rubber or flexible plastics
08
with reinforcements embedded in the wall
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
11
Hoses, i.e. flexible pipes
20
Double-walled hoses
Applicants:
PETRÓLEO BRASILEIRO S.A. - PETROBRAS [BR/BR]; Av. República do Chile n° 65 Rio de Janeiro, BR
ROBERTS, Mark Peter [GB/GB]; GB (MW)
Inventors:
CARPIGIANI DE ALMEIDA, Marcos; BR
CAMEIRO CAMPELLO, Goerge; BR
RIBEIRO, Jonatas; BR
MELLO SOBREIRA, Rafael Guimarães de; BR
LOUREIRO JUNIOR, Walter Carrara; BR
PIZA PAES, Marcelo Torres; BR
Agent:
J A KEMP; 14 South Square Gray's Inn London Greater London WC1R 5JJ, GB
Priority Data:
10 2017 011386-830.05.2017BR
Title (EN) PIPE FOR CONTROL AND FORCED CIRCULATION OF CORROSION-INHIBITING FLUIDS IN THE ANNULUS THEREOF
(FR) TUYAU DE RÉGULATION ET DE CIRCULATION FORCÉE DE FLUIDES INHIBITEURS DE CORROSION DANS L'ESPACE ANNULAIRE DE CELUI-CI
Abstract:
(EN) The present document provides a pipe for control and forced circulation of corrosion-inhibiting fluids in an annulus thereof, the annulus being located between an inner pressure barrier (6) and an outer cover (8) of the pipe and containing a number of layers, the pipe comprising: two layers of tensile armour (1) within the annulus; at least one injection pipe (2) laid helicoidally on the longitudinal extension of the pipe; at least one return pipe (2) laid helicoidally on the longitudinal extension of the pipe; and a ventilation layer (10) within the annulus, the ventilation layer being configured to facilitate the flow of fluids longitudinally through the annulus of the pipe.
(FR) La présente invention concerne un tuyau de régulation et de circulation forcée de fluides inhibiteurs de corrosion dans un espace annulaire de celui-ci, l'espace annulaire étant situé entre une barrière de pression intérieure (6) et un revêtement extérieur (8) du tuyau et contenant un certain nombre de couches, le tuyau comprenant : deux couches d'armure de traction (1) à l'intérieur de l'espace annulaire ; au moins un tuyau d'injection (2) disposé de manière hélicoïdale sur l'extension longitudinale du tuyau ; au moins un tuyau de retour (2) disposé de manière hélicoïdale sur l'extension longitudinale du tuyau ; et une couche de ventilation (10) à l'intérieur de l'espace annulaire, la couche de ventilation étant configurée pour faciliter l'écoulement de fluides longitudinalement à travers l'espace annulaire du tuyau.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)