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1. (WO2017131647) RHEOLOGICAL FLUID LOCK OF SHAFT TO HOUSING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/131647 International Application No.: PCT/US2016/015023
Publication Date: 03.08.2017 International Filing Date: 27.01.2016
IPC:
E21B 7/04 (2006.01) ,E21B 7/08 (2006.01) ,E21B 17/00 (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
7
Special methods or apparatus for drilling
04
Directional drilling
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
7
Special methods or apparatus for drilling
04
Directional drilling
06
Deflecting the direction of boreholes
08
Special apparatus for deflecting the boring, e.g. special drill bits, knuckle joints, whipstocks
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
17
Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
Applicants:
HALLIBURTON ENERGY SERVICES, INC. [US/US]; 3000 N. Sam Houston Parkway E. Houston, Texas 77032-3219, US
Inventors:
SAMUEL, Geoffrey A.; CA
ROY CHOUDHURY, Neil; CA
Agent:
ROSE, Collin A.; US
Priority Data:
Title (EN) RHEOLOGICAL FLUID LOCK OF SHAFT TO HOUSING
(FR) VERROUILLAGE PAR FLUIDE RHÉOLOGIQUE D'UN ARBRE SUR UN BOÎTIER
Abstract:
(EN) A rheological lock apparatus includes a fluid chamber formed within a housing between a pair of seals. The fluid chamber contains a rheological fluid. An inner surface of the housing has a first plurality of splines projecting into the fluid chamber and extending longitudinally along a longitudinal dimension of the chamber. A driveshaft extends axially through the chamber such that the pair of seals are sealed against the driveshaft. The driveshaft includes a second plurality of splines. A field generator is coupled to one of the driveshaft or the housing to generate a field through the rheological fluid during times when the housing is substantially immobile in a borehole.
(FR) La présente invention concerne un appareil de verrouillage rhéologique comprenant une chambre de fluide formée à l'intérieur d'un boîtier situé entre une paire de joints. La chambre à fluide contient un fluide rhéologique. Une surface intérieure du boîtier présente une première pluralité de cannelures faisant saillie dans la chambre de fluide et s'étendant longitudinalement le long d'une dimension longitudinale de la chambre. Un arbre d'entraînement s'étend axialement dans ladite chambre de telle sorte que la paire de joints est scellée contre l'arbre d'entraînement. L'arbre d'entraînement comprend une seconde pluralité de cannelures. Un générateur de champ est couplé à l'arbre d'entraînement ou au boîtier afin de générer un champ dans le fluide rhéologique pendant les périodes où le boîtier est sensiblement immobile dans un trou de forage.
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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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, 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, SA, 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, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
US20180355675