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1. (WO2013123293) INVERSION-BASED CALIBRATION OF DOWNHOLE ELECTROMAGNETIC TOOLS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/123293 International Application No.: PCT/US2013/026289
Publication Date: 22.08.2013 International Filing Date: 15.02.2013
IPC:
E21B 47/0228 (2012.01) ,G01V 3/08 (2006.01)
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47
Survey of boreholes or wells
02
Determining slope or direction
022
of the borehole, e.g. using geomagnetism
0228
using electromagnetic energy or detectors therefor
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3
Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
08
operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
Applicants:
SCHLUMBERGER CANADA LIMITED [CA/CA]; 525-3rd Avenue Southwest Calgary, Alberta T2P-0G4, CA (CA)
SERVICES PETROLIERS SCHLUMBERGER [FR/FR]; 42 rue Saint Dominique F-75007 Paris, FR (FR)
SCHLUMBERGER HOLDINGS LIMITED [GB/GB]; P.O. Box 71, Craigmuir Chambers, Road Town Tortola, Virgin Islands, British, 1110, VG (GB, JP, NL)
SCHLUMBERGER TECHNOLOGY B.V. [NL/NL]; Parkstraat 83-89m NL-2514 JG The Hague, NL (AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BN, BR, BW, BY, BZ, CF, CG, CH, CI, CL, CM, CO, CR, CU, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GA, GD, GE, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IS, IT, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, NE, NI, NO, NZ, OM, PA, PE, PG, PL, PT, QA, RO, RS, RU, RW, SC, SE, SG, SI, SK, SL, SM, SN, ST, SV, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, ZA, ZM, ZW)
PRAD RESEARCH AND DEVELOPMENT LIMITED [GB/GB]; P.O. Box 71, Craigmuir Chambers, Road Town Tortola, Virgin Island, British, 1110, VG (AE, AO, BF, BH, BJ, CF, CG, CI, CM, CN, GA, GH, GN, GQ, GW, IN, LY, MA, ML, MR, MZ, NA, NE, NG, PH, SD, SN, SY, TD, TG, VN)
SCHLUMBERGER TECHNOLOGY CORPORATION [US/US]; 300 Schlumberger Drive, Sugar Land, Texas 77478, US (US)
Inventors:
DAVYDYCHEV, Andrei I.; US
THIEL, Michael; US
OMERAGIC, Dzevat; US
CRARY, Steven F.; US
Agent:
LIU, Kenneth; 10001 Richmond Avenue IP Administration Center of Excellence Room 4720 Houston, Texas 77042, US
Priority Data:
61/600,46417.02.2012US
Title (EN) INVERSION-BASED CALIBRATION OF DOWNHOLE ELECTROMAGNETIC TOOLS
(FR) ÉTALONNAGE BASÉ SUR UNE INVERSION D'OUTILS ÉLECTROMAGNÉTIQUES EN FOND DE TROU
Abstract:
(EN) An inversion based calibration method for downhole electromagnetic tools includes processing an inversion of a formation model using acquired electromagnetic measurement data to obtain formation parameters and calibration parameters for at least one measurement array.
(FR) La présente invention concerne un procédé d'étalonnage basé sur une inversion d'outils électromagnétiques en fond de trou comprenant la réalisation d'une inversion d'un modèle de formation en utilisant des données de mesures électromagnétiques acquises pour obtenir des paramètres de formation et des paramètres d'étalonnage d'au moins un groupement de mesures.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, 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)