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1. (WO2009064728) WELL BORE TRAJECTORY COMPUTATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/064728    International Application No.:    PCT/US2008/083129
Publication Date: 22.05.2009 International Filing Date: 11.11.2008
IPC:
E21B 47/022 (2012.01), E21B 47/04 (2012.01)
Applicants: SCHLUMBERGER CANADA LIMITED [CA/CA]; 525 3rd Avenue SW, Calgary, Alberta T2P0G4 (CA) (CA only).
SCHLUMBERGER TECHNOLOGY B.V. [NL/NL]; Parkstraat 83-89, NL-2514 JG The Hague (NL) (AL, AU, AZ, BG, CO, CZ, DE, DK, GR, HU, ID, IE, IL, IT, KZ, LT, MX, MY, NO, NZ, OM, PL, RO, RU, SI, SK, TM, TN, TR, TT, UA, UZ, ZA only).
PRAD RESEARCH AND DEVELOPMENT LIMTED [--/--]; P.O. Box 71, Craigmuir Chambers, Road Town, Tortola (VG) (AE, AG, AM, AO, AT, BA, BB, BE, BF, BH, BJ, BR, BW, BY, BZ, CF, CG, CH, CI, CM, CN, CR, CU, CY, DM, DO, DZ, EC, EE, EG, ES, FI, GA, GD, GE, GH, GM, GN, GQ, GT, GW, HN, HR, IN, IS, KE, KG, KM, KN, KP, KR, LA, LC, LK, LR, LS, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MZ, NA, NE, NG, NI, PG, PH, PT, RS, SC, SD, SE, SG, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TJ, TZ, UG, VC, VN, ZM, ZW only).
SERVICE PETROLIERS SCHLUMBERGER [FR/FR]; 42, Rue Saint-Dominique, F-75007 Paris (FR) (FR only).
SCHLUMBERGER HOLDINGS LIMITED [--/--]; P.O. Box 71, Craigmuir Chambers, Roadtown, Tortola (VG) (GB, JP, NL only).
PHILLIPS, Wayne, J. [US/US]; (US) (For US Only).
BORDAKOV, Georgiy [RU/US]; (US) (For US Only).
KOSTIN, Alexander [RU/US]; (US) (For US Only).
MEHTA, Shyam [US/US]; (US) (For US Only).
HELIOT, Denis [FR/US]; (US) (For US Only).
RASMUS, John, C. [US/US]; (US) (For US Only)
Inventors: PHILLIPS, Wayne, J.; (US).
BORDAKOV, Georgiy; (US).
KOSTIN, Alexander; (US).
MEHTA, Shyam; (US).
HELIOT, Denis; (US).
RASMUS, John, C.; (US)
Agent: ECHOLS, Brigitte, L.; Schlumberger Technology Corporation, 200 Gillingham Lane MD200-9, Sugar Land, TX 77478 (US)
Priority Data:
60/987,292 12.11.2007 US
Title (EN) WELL BORE TRAJECTORY COMPUTATION
(FR) CALCUL DE LA TRAJECTOIRE D'UN PUITS DE FORAGE
Abstract: front page image
(EN)Various methods are disclosed, comprising obtaining a plurality of raw depth measurements for a wellbore; obtaining survey data about a bottom hole assembly; obtaining depth compensation information; calculating a plurality of compensated depth measurements from the raw depth measurements and the depth compensation information; determining a high fidelity wellbore trajectory from the compensated depth measurements and the survey data; and then employing the high fidelity wellbore trajectory in various drilling, formation evaluation, and production and reservoir analysis applications. Depth compensation information may comprise at least one of weight on bit, a friction factor, temperature profile, borehole profile, drill string mechanical properties, hookload, and drilling fluid property. The surveys may include both static and continuous surveys.
(FR)L'invention concerne différents procédés, comprenant l'obtention d'une pluralité de mesures de profondeur brutes pour un puits de forage; l'obtention de données d'études concernant un ensemble de fonds de puits; l'obtention d'informations de compensation de profondeur; le calcul d'une pluralité de mesures de profondeur compensées à partir des mesures de profondeur brutes et des informations de compensation de profondeur; la détermination d'une trajectoire de puits de forage haute fidélité à partir de mesures de profondeur compensées et des données d'études; et ensuite l'utilisation de la trajectoire de puits de forage haute fidélité dans différentes applications de sondage, d'évaluation de la formation, de production et d'analyse du réservoir. Les informations de compensation de profondeur peuvent comprendre au moins une information parmi le poids sur l'outil, un coefficient de frottement, un profil de température, un profil de trou de forage, les propriétés mécaniques du train de tige de forage, la charge au crochet, et les propriétés de boue de forage. Les études peuvent comprendre aussi bien des études statiques que des études permanentes.
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)