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1. (WO2018184087) PRESSURE BALANCED SEAL ASSEMBLY
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Pub. No.: WO/2018/184087 International Application No.: PCT/CA2017/050406
Publication Date: 11.10.2018 International Filing Date: 03.04.2017
IPC:
F16J 15/52 (2006.01) ,E21B 33/10 (2006.01) ,F16J 15/3224 (2016.01) ,F16J 15/447 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
50
between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
52
by means of sealing bellows or diaphragms
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
33
Sealing or packing boreholes or wells
10
in the borehole
[IPC code unknown for F16J 15/3224]
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
44
Free-space packings
447
Labyrinth packings
Applicants:
HALLIBURTON ENERGY SERVICES, INC. [US/CA]; 1406 - 5 Street Nisku, Alberta T9E 7R6, CA
Inventors:
WHEELER, Fraser, A.; CA
Agent:
GARWASIUK, Helen; CA
KUHARCHUK, Terrence, N.; CA
PARLEE MCLAWS LLP; 1700 Enbridge Centre 10175 - 101 Street N.W. Edmonton, Alberta T5J 0H3, CA
Priority Data:
Title (EN) PRESSURE BALANCED SEAL ASSEMBLY
(FR) ENSEMBLE JOINT D'ÉTANCHÉITÉ À ÉQUILIBRAGE DE PRESSION
Abstract:
(EN) A seal assembly in an apparatus including a housing, a housing bore defined by the housing, a shaft extending through the housing bore, and a shaft bore defined by the shaft. The housing bore includes an annular seal chamber between the housing and the shaft. The seal assembly includes a flexible tubular seal surrounding the shaft within the seal chamber. The tubular seal has a shaft end sealingly connected with the shaft and a housing end sealingly connected with the housing. The tubular seal divides the seal chamber into an interior seal chamber which is sealed from an exterior of the housing and an exterior seal chamber which is sealed from an interior space of the housing. At least one seal pressure balancing port is defined by the shaft and extends between the shaft bore and the exterior seal chamber.
(FR) L'invention concerne un ensemble joint d'étanchéité dans un appareil, comprenant un boîtier, un alésage de boîtier délimité par le boîtier, un arbre s'étendant à travers l'alésage de boîtier, et un alésage d'arbre délimité par l'arbre. L'alésage de boîtier comprend une chambre d'étanchéité annulaire entre le boîtier et l'arbre. L'ensemble joint d'étanchéité comprend un joint tubulaire souple entourant l'arbre à l'intérieur de la chambre d'étanchéité. Le joint tubulaire a une extrémité d'arbre reliée à étanchéité à l'arbre et une extrémité de boîtier reliée à étanchéité au boîtier. Le joint tubulaire divise la chambre d'étanchéité en une chambre d'étanchéité intérieure qui est isolée d'un extérieur du boîtier et une chambre d'étanchéité extérieure qui est isolée d'un espace intérieur du boîtier. Au moins un orifice d'équilibrage de pression d'étanchéité est délimité par l'arbre et s'étend entre l'alésage d'arbre et la chambre d'étanchéité extérieure.
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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, DJ, 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, KH, KN, KP, KR, KW, 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 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)