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1. (WO2018049503) STUFFING BOX WITH ENLARGED BORE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/049503 International Application No.: PCT/CA2016/051532
Publication Date: 22.03.2018 International Filing Date: 22.12.2016
IPC:
E21B 33/04 (2006.01) ,E21B 33/068 (2006.01) ,E21B 33/08 (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
33
Sealing or packing boreholes or wells
02
Surface sealing or packing
03
Well heads; Setting-up thereof
04
Casing heads; Suspending casings or tubings in well heads
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
02
Surface sealing or packing
03
Well heads; Setting-up thereof
068
having provision for introducing objects or fluids into, or removing objects from, 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
33
Sealing or packing boreholes or wells
02
Surface sealing or packing
08
Wipers; Oil savers
Applicants:
DRECO ENERGY SERVICES ULC [CA/CA]; 6415 75 Street NW Edmonton, Alberta, T6E 0T3, CA
Inventors:
MCADAM, David; CA
MCADAM, Brian; CA
ORR, James; CA
Agent:
RICHES, MCKENZIE & HERBERT LLP; 2 Bloor Street East, Suite 1800 Toronto, Ontario, M4W 3J5, CA
Priority Data:
62/395,80916.09.2016US
Title (EN) STUFFING BOX WITH ENLARGED BORE
(FR) PRESSE-ÉTOUPE À ALÉSAGE ÉLARGI
Abstract:
(EN) A modified stuffing box for a wellhead is provided. More particularly, a modified stuffing box having an enlarged bore in its lower section is provided for allowing convenient removal of downhole tools without the need for removing the entire stuffing box from the wellhead.
(FR) L'invention concerne un presse-étoupe modifié pour une tête de puits. Plus particulièrement, l'invention concerne un presse-étoupe modifié ayant un alésage élargi dans sa section inférieure pour permettre un retrait pratique d'outils de fond de trou sans avoir besoin d'enlever la totalité du presse-étoupe de la tête de puits.
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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)