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Machine translation
1. (WO2005108848) IMPROVED COUPLING FOR DRILLING-WITH-CASING OPERATIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/108848    International Application No.:    PCT/US2005/015127
Publication Date: 17.11.2005 International Filing Date: 29.04.2005
IPC:
F16L 25/00 (2006.01)
Applicants: GB TUBULARS, INC. [US/US]; 1444 Blalock Road, Houston, TX 77055 (US) (For All Designated States Except US).
GEARY, George, B; (US) (For US Only).
MANNELLA, Eugene, J. [--/--]; (US) (For US Only)
Inventors: GEARY, George, B; (US).
MANNELLA, Eugene, J.; (US)
Agent: KEIRS, Christopher, D.; Wong, Cabello, Lutsch, Rutherford & Brucculeri, L.L.P., Suite 600, 20333 SH 249, Houston, TX 77070 (US)
Priority Data:
60/567,031 30.04.2004 US
Title (EN) IMPROVED COUPLING FOR DRILLING-WITH-CASING OPERATIONS
(FR) COUPLAGE AMELIORE POUR OPERATIONS DE FORAGE AVEC TUBAGE
Abstract: front page image
(EN)A modified API Buttress threaded casing connection is disclosed for use in drilling oil and gas wells in lieu of using conventional drill pipe. The coupling threads only are multiple tapered yet can be mated with standard API Buttress pin threads having a single taper. The coupling is also shortened to permit abutment of the mating pins at the center of the coupling and can be further enhanced with an integral, sacrificial wear sleeve on one end of the coupling.
(FR)L'invention concerne un raccord de tubage fileté de pilier API modifié à utiliser dans le forage de puits de gaz et de pétrole, à la place d'une tige de forage traditionnelle. Les parties filetées du couplage présentent uniquement plusieurs conicités, mais peuvent s'accoupler avec des parties filetées de broche de pilier API à conicité unique. Ce couplage peut être raccourci de manière à permettre l'aboutement des broches d'accouplement au centre du couplage et il peut être amélioré au moyen d'un protecteur de tiges sacrificiel, intégral sur une extrémité du couplage.
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, KM, 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, SM, 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)