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1. (WO2010115188) NITINOL SPRING THROUGH TUBING BRIDGE PLUG
PCT Biblio. Data
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Latest bibliographic data on file with the International Bureau
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Pub. No.:
WO/2010/115188
International Application No.:
PCT/US2010/029955
Publication Date:
07.10.2010
International Filing Date:
05.04.2010
IPC:
E21B 33/134
(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
13
Methods or devices for cementing, for plugging holes, crevices, or the like
134
Bridging plugs
Applicants:
BAKER HUGHES INCORPORATED
[US/US]; P.O. Box 4740 Houston, TX 77210-4740 (US)
(For All Designated States Except US)
.
HILL, Freeman, L.
[US/US]; (US)
(For US Only)
.
BEFELD, William, J.
[US/US]; (US)
(For US Only)
.
CRESSWELL, Gary, J.
[US/US]; (US)
(For US Only)
.
RINBERG, Gregory
[US/US];
(For US Only)
.
RAZ, Dan
[US/US];
(For US Only)
.
GOLDSTEIN, Michael
[US/US];
(For US Only)
Inventors:
HILL, Freeman, L.
; (US).
BEFELD, William, J.
; (US).
CRESSWELL, Gary, J.
; (US).
RINBERG, Gregory
; .
RAZ, Dan
; .
GOLDSTEIN, Michael
;
Agent:
CARSON, Matt, W
; Baker Hughes Incorporated P.O. Box 4740 Houston, TX 77210-4740 (US)
Priority Data:
61/166,489
03.04.2009
US
12/752,879
01.04.2010
US
Title
(EN)
NITINOL SPRING THROUGH TUBING BRIDGE PLUG
(FR)
BOUCHON PROVISOIRE DE COLONNE DE PRODUCTION À RESSORT EN NITINOL
Abstract:
(EN)
A bridge plug assembly that can be set in a wellbore tubular using wellbore pressure to form a pressure differential on a piston that actuates sliding members. A resilient member, such as a spring, is compressed from a downhole pressure differential. The bridge plug assembly can be removed by equalizing pressure across the piston and the spring. The spring can expand and re-stow the expanded plug. The plug can be formed from a nickel titanium alloy flexible member that can be selectively radially expanded so its outer surface sealingly engages a surrounding tubular. The percentage of weight of nickel can range up to about 40 to about 58%, 55% or to about 60%.
(FR)
La présente invention concerne un ensemble bouchon provisoire qui peut être installé dans un élément tubulaire de puits de forage utilisant la pression du puits de forage pour former un différentiel de pression sur un piston actionnant des éléments coulissants. Un élément élastique, tel qu'un ressort, est comprimé à partir d'un différentiel de pression de fond. L'ensemble bouchon provisoire peut être retiré en égalisant la pression sur le piston et le ressort. Le ressort peut se détendre et arrimer le bouchon détendu. Le bouchon peut être formé d'un élément souple en alliage de titane et de nickel, et peut être détendu radialement de façon sélective de sorte à ce que sa surface externe vienne en prise de façon hermétique avec une colonne de production environnante. Le pourcentage en poids de nickel peut se situer dans une plage allant d'environ 40 % à environ 58 %, 55 %, ou à environ 60 %.
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, SM, 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
)