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1. (WO2019027462) METHODS FOR SUPPORTING WELLBORE FORMATIONS WITH EXPANDABLE STRUCTURES
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Pub. No.: WO/2019/027462 International Application No.: PCT/US2017/045321
Publication Date: 07.02.2019 International Filing Date: 03.08.2017
IPC:
E21B 7/00 (2006.01) ,E21B 41/00 (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
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
41
Equipment or details not covered by groups E21B15/-E21B40/95
Applicants:
HALLIBURTON ENERGY SERVICES, INC. [US/US]; 3000 N. Sam Houston Pkwy E. Houston, TX 77032-3219, US
Inventors:
BESSELINK, Peter; NL
VAN MOORLEGHEM, Wilfried; MX
GRECI, Stephen, Michael; US
Agent:
HILTON, Robert; US
COLLINS, Darren; US
GROSS, Charles; US
LI, William; US
PICKELL, Aaron; US
Priority Data:
Title (EN) METHODS FOR SUPPORTING WELLBORE FORMATIONS WITH EXPANDABLE STRUCTURES
(FR) PROCÉDÉS DESTINÉS À SUPPORTER DES FORMATIONS DE PUITS DE FORAGE AVEC DES STRUCTURES EXTENSIBLES
Abstract:
(EN) A method to provide support within a wellbore includes underreaming a section of the wellbore at a depth spanning a layer of an unstable formation. The method also includes deploying a bistable structure within the wellbore at the depth of the layer of the unstable formation. Additionally, the method includes actuating an expandable packer within the bistable structure to expand the bistable structure in a radially outward direction from a longitudinal axis of the bistable structure. The bistable structure is in contact with walls of the underreamed section of the wellbore upon expanding in the radially outward direction.
(FR) L'invention concerne un procédé permettant de fournir un support à l'intérieur d'un puits de forage, lequel procédé consiste à sous-aléser une section du puits de forage à une profondeur recouvrant une couche d'une formation instable. Le procédé consiste également à déployer une structure bistable à l'intérieur du puits de forage à la profondeur de la couche de la formation instable. De plus, le procédé consiste à actionner un packer extensible à l'intérieur de la structure bistable afin d'étendre la structure bistable dans une direction radialement vers l'extérieur à partir d'un axe longitudinal de la structure bistable. La structure bistable est en contact avec les parois de la section sous-alésée du puits de forage lors de l'extension dans la direction radialement vers l'extérieur.
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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, JO, 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)