(12) International Application Status Report

Received at International Bureau: 10 September 2010 (10.09.2010)

Information valid as of: 17 February 2011 (17.02.2011)

Report generated on: 28 February 2021 (28.02.2021)

(10) Publication number: (43) Publication date: (26) Publication language:
WO 2011/02715410 March 2011 (10.03.2011) English (EN)

(21) Application number: (22) Filing date: (25) Filing language:
PCT/GB2010/05144302 September 2010 (02.09.2010) English (EN)

(31) Priority number(s): (32) Priority date(s): (33) Priority status:
0915252.1 (GB)02 September 2009 (02.09.2009) Priority document received (in compliance with PCT Rule 17.1)

(51) International Patent Classification:
G01M 3/14 (2006.01); G01M 3/18 (2006.01); G01M 11/00 (2006.01); G01M 5/00 (2006.01)

(71) Applicant(s):
GENESIS OIL & GAS CONSULTANTS LIMITED [GB/GB]; 262 High Holborn London WC1V 7NA (GB) (for all designated states except US)
BANKS, Steve [GB/GB]; Birdsong Pont Vailant Lane Vale Guernsey GY6 8BN (GB) (for US only)
ARMITAGE, David [GB/GB]; Mountview Church Road Tilston SY14 7HB (GB) (for US only)
ROBINSON, Peter [GB/GB]; Eskrigge Hall Gressingham Lancaster LA2 8LX (GB) (for US only)
PEYTON, Anthony [GB/GB]; 40 Chapeltown Bromley Cross Bolton BL7 9NF (GB) (for US only)

(72) Inventor(s):
BANKS, Steve; Birdsong Pont Vailant Lane Vale Guernsey GY6 8BN (GB)
ARMITAGE, David; Mountview Church Road Tilston SY14 7HB (GB)
ROBINSON, Peter; Eskrigge Hall Gressingham Lancaster LA2 8LX (GB)
PEYTON, Anthony; 40 Chapeltown Bromley Cross Bolton BL7 9NF (GB)

(74) Agent(s):
MURGITROYD & COMPANY; Scotland House 165-169 Scotland Street Glasgow Strathclyde G5 8PL (GB)

(54) Title (EN): METHOD OF TESTING AN UNBONDED FLEXIBLE PIPELINE
(54) Title (FR): PROCÉDÉ DE TEST D'UN PIPELINE FLEXIBLE NON RACCORDÉ

(57) Abstract:
(EN): A method of testing an unbonded flexible pipeline comprising a polymer pressure sheath, the method comprising at least the steps of: (a) transmitting an electromagnetic signal along the polymer pressure sheath; (b) seeking one or more reflected signals; and (c) analysing the or each reflected signal to determine one or more characteristics of the electrical permittivity of the polymer pressure sheath. In this way, a non-invasive electromagnetic signal can be generated to be passed along the polymer pressure sheath of the pipeline, and any reflected signals can be interpreted and analysed to ascertain any change in the dielectric properties of the polymer pressure sheath, in particular the presence or existence of one or more discontinuities such as cracks or holes, in advance of possible failure, in particular catastrophic failure, of the polymer pressure sheath. Characteristics of the reflected signal(s) can include distance, extent, etc. of discontinuities along the pipeline. This invention can be applied both to new pipelines during their manufacture and/or instalment, as well as existing pipelines being in situ or in service, thereby providing a single method for analysing all forms of pipelines.
(FR): L'invention concerne un procédé de test d'un pipeline flexible non raccordé comprenant une gaine de pression polymère, ce procédé comprenant au moins les étapes consistant à : (a) envoyer un signal électromagnétique le long de la gaine de pression polymère; (b) rechercher un ou plusieurs signaux réfléchis, et (c) analyser le signal ou chaque signal réfléchi afin de déterminer au moins une caractéristique de la permittivité électrique de la gaine de pression polymère. De cette façon, un signal électromagnétique non invasif peut être généré pour le faire passer le long de la gaine de pression polymère du pipeline, et tout signal réfléchi peut être interprété et analysé de façon à s'assurer de tout changement dans les propriétés diélectriques de la gaine de pression polymère, notamment la présence ou l'existence d'au moins une discontinuité, telle que des fissures ou des trous, avant une éventuelle avarie, notamment une rupture catastrophique, de la gaine de pression polymère. Les caractéristiques du signal réfléchi ou des signaux réfléchis peuvent être la distance, l'extension, etc., des discontinuités le long du pipeline. Cette invention peut s'appliquer à la fois à de nouveaux pipelines en cours de fabrication et/ou d'installation, ainsi qu'à des pipelines existants in situ ou en service, ce qui permet de proposer un procédé unique d'analyse de toutes les formes de pipelines.

International search report:
Received at International Bureau: 31 January 2011 (31.01.2011) [EP]

International Report on Patentability (IPRP) Chapter II of the PCT:
Not available

(81) Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, 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
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, SE, SI, SK, SM, TR
African Intellectual Property Organization (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG
African Regional Intellectual Property Organization (ARIPO) : BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW
Eurasian Patent Organization (EAPO) : AM, AZ, BY, KG, KZ, MD, RU, TJ, TM