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Machine translation
1. (WO2004005670) CLOSED LOOP MULTIPHASE UNDERBALANCED DRILLING PROCESS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/005670    International Application No.:    PCT/US2003/021487
Publication Date: 15.01.2004 International Filing Date: 09.07.2003
IPC:
E21B 21/00 (2006.01), E21B 21/06 (2006.01), E21B 43/34 (2006.01)
Applicants: WEATHERFORD/LAMB, INC. [US/US]; 515 POST OAK BOULEVARD, SUITE 600, HOUSTON, TX 77027 (US)
Inventors: CHITTY, Gregory, H.; (US).
SAPONJA, Jeffrey, Charles; (CA).
HOSIE, David, Graham; (US)
Agent: PATTERSON, William, B.; Moser, Patterson & Sheridan LLP, 3040 Post Oak Boulevard, Suite 1500, Houston, TX 77056 (US)
Priority Data:
10/192,784 10.07.2002 US
Title (EN) CLOSED LOOP MULTIPHASE UNDERBALANCED DRILLING PROCESS
(FR) PROCEDE DE FORAGE EN SOUS-PRESSION MULTIPHASE EN CIRCUIT FERME
Abstract: front page image
(EN)The present invention provides apparatus and methods for handling fluids returning from a well. The fluids are introduced into a separator (110) and a separated gas stream (60) is recovered or recycled. The gas stream may comprise more than one phase. The separated gas stream is urged through a multiphase pump (200) before it is recovered. Alternatively, the return fluids may pass through a multiphase pump before it is introduced into the separator.
(FR)Cette invention se rapporte à un appareil et à des procédés de gestion des fluides remontant d'un puits . A cet effet, les fluides sont introduits dans un séparateur (110) et un flux de gaz séparé (60) est récupéré ou recyclé. Le flux de gaz peut être multiphase. Le flux de gaz séparé est amené de force à traverser une pompe multiphase (200) avant d'être récupéré. Dans une variante, les fluides remontant peuvent traverser une pompe multiphase avant d'être introduits dans le séparateur.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, 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, NI, NO, NZ, OM, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, 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, IT, LU, MC, NL, 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)