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1. (WO2017058249) SINGLE-TRIP, OPEN-HOLE WELLBORE ISOLATION ASSEMBLY
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/058249 International Application No.: PCT/US2015/053744
Publication Date: 06.04.2017 International Filing Date: 02.10.2015
IPC:
E21B 33/10 (2006.01) ,E21B 33/13 (2006.01) ,E21B 23/00 (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
33
Sealing or packing boreholes or wells
10
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
33
Sealing or packing boreholes or wells
10
in the borehole
13
Methods or devices for cementing, for plugging holes, crevices, or the like
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
Applicants:
HALLIBURTON ENERGY SERVICES, INC. [US/US]; 3000 N. Sam Houston Parkway, E. Houston, Texas 77032, US
Inventors:
SCHULDES, Roberto Francisco; US
ARDOIN, Kevin Wendell; US
Agent:
SUAREZ, Vera; US
Priority Data:
Title (EN) SINGLE-TRIP, OPEN-HOLE WELLBORE ISOLATION ASSEMBLY
(FR) ENSEMBLE D'ISOLATION À ALLER SIMPLE POUR PUITS DE FORAGE EN TROU DÉCOUVERT
Abstract:
(EN) A method of isolating an open-hole section of a wellbore includes positioning, a liner, a valve, and a liner hanger that are attached to a working string adjacent an interface between the open-hole section and a cased section of the wellbore. The method includes injecting cement through the liner and the valve to form a first balanced cement plug within the open-hole section of the wellbore. Generally, the liner, the valve, and the liner hanger are secured within the balanced cement plug. After the balanced cement plug is set, the liner hanger is actuated and the liner, the valve, and the liner hanger are detached from the working string, which causes the valve to close and creates a mechanical barrier between the balanced cement plug and the working string. Additionally, the mechanical barrier is covered in cement to form another balanced cement plug.
(FR) L'invention concerne un procédé d'isolation d'une section en trou découvert d'un puits de forage, qui comprend l'étape consistant à positionner une colonne perdue, une soupape et une suspension de colonne perdue, qui sont rattachées à un train de tiges de travail au voisinage d'une interface entre la section en trou découvert et une section tubée du puits de forage. Le procédé comprend l'étape consistant à injecter du ciment à travers la colonne perdue et la soupape pour former un premier bouchon de ciment équilibré à l'intérieur de la section en trou découvert du puits de forage. Généralement, la colonne perdue, la soupape et la suspension de colonne perdue sont immobilisées à l'intérieur du bouchon de ciment équilibré. Après la prise du bouchon de ciment équilibré, la suspension de colonne perdue est actionnée et la colonne perdue, la soupape et la suspension de colonne perdue sont détachée au train de tiges de travail, ce qui provoque la fermeture de la soupape et crée une barrière mécanique entre le bouchon de ciment équilibré et le train de tiges de travail. De plus, la barrière mécanique est recouverte de ciment pour former un autre bouchon de ciment équilibré.
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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 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)