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Machine translation
1. (WO2009058808) DRILL BITS AND TOOLS FOR SUBTERRANEAN DRILLING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/058808    International Application No.:    PCT/US2008/081510
Publication Date: 07.05.2009 International Filing Date: 29.10.2008
IPC:
E21B 10/42 (2006.01), E21B 10/43 (2006.01)
Applicants: BAKER HUGHES INCORPORATED [US/US]; P.O. Box 4740, Houston, TX 77027 (US) (For All Designated States Except US).
GREEN, James, C. [US/US]; (US) (For US Only).
DOSTER, Michael, L. [US/US]; (US) (For US Only).
HOINES, Jason, E. [US/US]; (US) (For US Only).
WELCH, Robert, M. [US/US]; (US) (For US Only).
ROBERTS, Danielle, V. [US/US]; (US) (For US Only)
Inventors: GREEN, James, C.; (US).
DOSTER, Michael, L.; (US).
HOINES, Jason, E.; (US).
WELCH, Robert, M.; (US).
ROBERTS, Danielle, V.; (US)
Agent: WELBORN, Brian, S.; Intellectual Property Counsel, Baker Hughes Incorporated, P.O. Box 4740, Houston, TX 77210-4740 (US)
Priority Data:
60/983,493 29.10.2007 US
Title (EN) DRILL BITS AND TOOLS FOR SUBTERRANEAN DRILLING
(FR) TRÉPANS ET OUTILS DE FORAGE SOUTERRAIN
Abstract: front page image
(EN)A drill bit having a bit body includes a blade face surface on at least one blade extending longitudinally and radially outward over a face of the bit body. The blade face surface of the at least one blade includes a contact zone and a sweep zone. The sweep zone rotationally trials the contact zone with respect to a direction of intended bit rotation about a longitudinal axis of the bit body, which reduces rubbing contact when engaging with a subterranean formation.
(FR)L'invention concerne un trépan comportant un corps de trépan comprenant une surface de face de lame sur au moins une lame s'étendant longitudinalement et radialement vers l'extérieur sur une face du corps de trépan. La surface de face de lame de la ou des lames comprend une zone de contact et une zone de déplacement du brut. La zone de déplacement du brut suit en rotation la zone de contact par rapport à la direction de rotation de trépan prévue autour d'un axe longitudinal du corps de trépan et assure un contact avec frottement réduit lors d'une utilisation dans une formation souterraine.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, 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)