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1. (WO2017134360) METHOD FOR MONITORING THE THERMOMECHANICAL BEHAVIOUR OF A SUBSEA PIPE FOR TRANSPORTING PRESSURISED FLUIDS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134360 International Application No.: PCT/FR2017/050120
Publication Date: 10.08.2017 International Filing Date: 20.01.2017
IPC:
G01D 5/353 (2006.01) ,E21B 47/00 (2012.01) ,E21B 17/01 (2006.01)
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26
using optical means, i.e. using infra-red, visible or ultra-violet light
32
with attenuation or whole or partial obturation of beams of light
34
the beams of light being detected by photocells
353
influencing the transmission properties of an optical fibre
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47
Survey of boreholes or wells
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
17
Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
01
Risers
Applicants:
SAIPEM S.A. [FR/FR]; 1/7 avenue San Fernando 78180 Montigny Le Bretonneux, FR
CEMENTYS [FR/FR]; 27 Villa Daviel 75013 Paris, FR
Inventors:
PIONETTI, François-Régis; FR
AGOUMI, Jalil; FR
SUNDERMANN, Axel; FR
MARAVAL, Damien; FR
LAMOUR, Vincent; FR
Agent:
BOURA, Olivier; FR
DOMANGE, Maxime; FR
DELUMEAU, François; FR
DESORMIERE, Pierre Louis; FR
HUBERT, Philippe; FR
INTES, Didier; FR
Priority Data:
16 5082602.02.2016FR
Title (EN) METHOD FOR MONITORING THE THERMOMECHANICAL BEHAVIOUR OF A SUBSEA PIPE FOR TRANSPORTING PRESSURISED FLUIDS
(FR) PROCÉDÉ DE SURVEILLANCE DU COMPORTEMENT THERMOMÉCANIQUE D'UNE CONDUITE SOUS-MARINE DE TRANSPORT DE FLUIDES SOUS PRESSION
Abstract:
(EN) The invention relates to a method for monitoring the thermomechanical behaviour of a subsea pipe (2) carrying pressurised fluids and produced by assembling unitary pipe elements (4), the method comprising a step of determining a mechanical signature specific to each unitary pipe element, consisting in using a measuring cable (16) provided with a fibre optic sensor using Brillouin backscattering to measure the deformations in each unitary pipe element when it is subjected, while ashore, to different mechanical stresses of predetermined directions and intensities, and to establish a stiffness matrix associated with the mechanical signature of each unitary pipe element; a step of determining a thermal signature specific to each unitary pipe element by measuring the temperature changes in said unitary pipe element when it is subjected, while ashore, to different electrical heating power values, and establishing a thermal transfer function associated with said thermal signature of each unitary pipe element; and a monitoring step consisting in recovering the variations of the optical signal injected in the sensors when the pipe is in service, and determining the changes in the mechanical and thermal signatures of each unitary pipe element.
(FR) L'invention concerne un procédé de surveillance du comportement thermomécanique d'une conduite sous-marine (2) de transport de fluides sous pression réalisée par assemblage d'éléments unitaires de conduite (4), le procédé comprenant une étape de détermination d'une signature mécanique propre à chaque élément unitaire de conduite consistant, à l'aide d'un câble de mesure (16) muni d'un capteur à fibre optique utilisant la rétrodiffusion de Brillouin, à mesurer les déformations subies par l'élément unitaire de conduite lorsqu'il est soumis à terre à différentes sollicitations mécaniques de directions et d'intensités prédéterminées, et à établir une matrice de raideur associée à la signature mécanique de chaque élément unitaire de conduite, une étape de détermination d'une signature thermique propre à chaque élément unitaire de conduite consistant à mesurer les évolutions de températures de l'élément unitaire de conduite lorsqu'il est soumis à terre à différentes puissances électriques de chauffe, et à établir une fonction de transfert thermique associée à la signature thermique de chaque élément unitaire de conduite, et une étape de surveillance consistant à récupérer les variations du signal optique injecté dans les capteurs lorsque la conduite est en service, et à déterminer l'évolution des signatures mécanique et thermique de chaque élément unitaire de conduite.
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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, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: French (FR)
Filing Language: French (FR)
Also published as:
AO3685IN201817025441EP3411668BR112018015392US20190033102ID2019/01017