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1. (WO2005068773) IMPROVED TRACTION CONTROL FOR DOWNHOLE TRACTOR
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2005/068773 International Application No.: PCT/IB2005/050030
Publication Date: 28.07.2005 International Filing Date: 04.01.2005
IPC:
E21B 4/18 (2006.01) ,E21B 23/00 (2006.01) ,E21B 23/14 (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
4
Drives for drilling, used in the borehole
18
Anchoring or feeding in the borehole
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
23
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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
23
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
14
for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
Applicants: DOERING, Falk[DE/US]; US (UsOnly)
SHEIRETOV, Todor[BG/US]; US (UsOnly)
EWAN, Robin[GB/US]; US (UsOnly)
FOURBERT, Benoit[US/US]; US (UsOnly)
SCHLUMBERGER LIMITED[NL/US]; Julianaplein 5 Curacao, AN (TR)
SCHLUMBERGER CANADA LTD.[CA/CA]; 525 - 3rd Avenue S.W. Calgary, Alberta T2P 0G4, CA (CA)
PRAD RESEARCH AND DEVELOPMENT N.V.[NL/NL]; De Ruyterkade 62 Willemstad Curacao, AN (BF, BJ, CF, CG, CI, CM, DZ, GA, GN, GQ, GW, MA, ML, MR, NE, SN, TD, TG, ZA)
SCHLUMBERGER SURENCO S.A.[PA/PA]; 8 Calle Aquilino de la Guardia Panama City, PA (BR)
SCHLUMBERGER TECHNOLOGY B.V.[NL/NL]; Parkstraat 83-89 NL-2514 The Hague, NL (AM, AT, AU, AZ, BY, BZ, DE, DK, ES, ID, IE, IT, KG, KP, KR, KZ, MD, MX, NO, NZ, RU, SM, TJ, TM)
SERVICES PETROLIERS SCHLUMBERGER[FR/FR]; 42, Rue Saint Dominique F-75007 Paris, FR (FR)
SCHLUMBERGER OVERSEAS S.A.[PA/PA]; 8 Calle Aquilino de la Guardia Panama City, PA (CN)
SCHLUMBERGER SERVICES LIMITED[GB/GB]; P.O. Box 438 Tortola, VG (TT)
SCHLUMBERGER HOLDINGS LIMITED[GB/GB]; P.O. Box 71 Craigmuir Chambers Roadtown Tortola, VG (AE, AG, AL, BA, BB, BE, BG, BW, CH, CO, CR, CU, CY, CZ, DM, EC, EE, EG, FI, GB, GD, GE, GH, GM, GR, HR, HU, IL, IN, IS, JP, KE, LC, LK, LR, LS, LT, LU, LV, MC, MG, MK, MN, MW, MZ, NA, NI, NL, OM, PG, PH, PL, PT, RO, SC, SD, SE, SG, SI, SK, SL, SY, SZ, TN, TZ, UA, UG, UZ, VC, VN, YU, ZM, ZW)
Inventors: DOERING, Falk; US
SHEIRETOV, Todor; US
EWAN, Robin; US
FOURBERT, Benoit; US
Agent: MITCHELL, Thomas; 110 Schlumberger Drive MD1 Sugar Land, TX 77478, US
Priority Data:
10/751,59905.01.2004US
Title (EN) IMPROVED TRACTION CONTROL FOR DOWNHOLE TRACTOR
(FR) COMMANDE DE TRACTION AMELIOREE POUR TRACTEUR DE FOND DE PUITS
Abstract:
(EN) Apparatus, system and methods useful for controlling the traction of a downhole tractor in a borehole include the capability of repeatedly adjusting the normal force applied to at least one component that causes movement of the tractor in the borehole, on the basis of the slippage of at least one drive unit.
(FR) La présente invention a trait à un appareil, un système et des procédés utiles pour la commande de la traction d'un tracteur de fond de puits dans un trou de forage comportant la capacité d'ajustement répété de la force normale appliquée à au moins un composant qui entraîne le déplacement du tracteur dans le trou de forage, en fonction du glissement d'au moins un mécanisme d'entraînement.
front page image
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, 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 (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (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)