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Machine translation
1. (WO2005061852) NON-THREADED EXPANDABLE PIPE CONNECTION SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/061852    International Application No.:    PCT/GB2004/005137
Publication Date: 07.07.2005 International Filing Date: 08.12.2004
Chapter 2 Demand Filed:    15.07.2005    
IPC:
E21B 17/04 (2006.01), E21B 43/10 (2006.01)
Applicants: BP EXPLORATION OPERATING COMPANY LIMITED [GB/GB]; Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7BP (GB) (For All Designated States Except US).
XL TECHNOLOGY LIMITED [GB/GB]; Gibb House, Kennel Ride, Ascot, Berkshire SL5 7NT (GB) (For All Designated States Except US).
HEAD, Philip [GB/GB]; (GB) (For US Only).
LURIE, Paul, George [GB/GB]; (GB) (For US Only)
Inventors: HEAD, Philip; (GB).
LURIE, Paul, George; (GB)
Agent: HYMERS, Ronald, Robson; BP International Limited, Patents & Agreements, Chertsey Road, Sunbury-on-Thames, Middx TW16 7LN (GB)
Priority Data:
0329811.4 23.12.2003 GB
0410906.2 14.05.2004 GB
Title (EN) NON-THREADED EXPANDABLE PIPE CONNECTION SYSTEM
(FR) SYSTEME DE RACCORDEMENT DE CONDUITE EXTENSIBLE NON FILETE
Abstract: front page image
(EN)A method for connecting tubular elements (37, 40), particularly pipe for strings to be used in oil and gas wells, comprises: (A) locating a portion of a first tubular element (37) within a portion of a second tubular element (40), (B) expanding the portion of the first tubular element and/or compressing the portion of the second tubular element to form a connection resulting from the interference between the external surface of the portion of the first tubular element and the internal surface of the portion of the second tubular element, in which, prior to assembly, one or both of the external surface of the portion of the first tubular element and. the internal surface of the portion of the second tubular element is/are at least partially coated by plasma spraying with hard angular material. Preferably, protuberances (38) of plasma-sprayed hard angular material are formed on at least one of the mating surfaces of the connection.
(FR)L'invention concerne un procédé pour raccorder des éléments tubulaires (37, 40), en particulier des conduites pour des trains de tiges destinés à être utilisés dans des puits de pétrole et de gaz. Ce procédé comprend les étapes consistant : (A) à localiser une partie d'un premier élément tubulaire (37) dans une partie d'un deuxième élément tubulaire (40) ; (B) à étendre la partie du premier élément tubulaire et/ou comprimer la partie du deuxième élément tubulaire, pour former un raccord qui résulte de l'interférence entre la surface externe de la partie du premier élément tubulaire et la surface interne de la partie du deuxième élément tubulaire. Selon l'invention, avant l'assemblage, ladite surface externe ou ladite surface interne ou ces deux surfaces est/sont au moins partiellement recouverte(s) par projection au plasma à l'aide d'un matériau angulaire dur. De préférences, des structures saillantes (38) de matériau angulaire dur projeté au plasma sont formées sur au moins une des surfaces d'accouplement du raccord.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)