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Machine translation
1. (WO2003006789) EXPANDABLE WELLBORE STABILISER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2003/006789 International Application No.: PCT/EP2002/007883
Publication Date: 23.01.2003 International Filing Date: 10.07.2002
Chapter 2 Demand Filed: 05.02.2003
IPC:
E21B 17/10 (2006.01) ,E21B 43/10 (2006.01)
Applicants: POINTING, Michael, Edward[GB/NL]; NL (UsOnly)
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.[NL/NL]; Carel van Bylandtlaan 30 NL-2596 HR The Hague, NL (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, BZ, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NE, NL, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZM, ZW)
SHELL CANADA LIMITED[CA/CA]; 400, 4th Avenue S.W. Calgary, Alberta T2P 2H5, CA (CA)
Inventors: POINTING, Michael, Edward; NL
Priority Data:
01305923.310.07.2001EP
Title (EN) EXPANDABLE WELLBORE STABILISER
(FR) STABILISATEUR DE PUITS DE FORAGE EXTENSIBLE
Abstract: front page image
(EN) A stabiliser is disclosed for stabilising a radially expandable tubular element extending in a wellbore drilled into an earth formation. The stabiliser comprises a radially expandable tubular member selected from a section of the tubular element and a sleeve surrounding the tubular element, and at least one stabiliser arm connected to the tubular member, each arm being movable from a radially retracted position to a radially extended position by the action of a spring force. The stabiliser further comprises locking means arranged to lock each arm in the retracted position when the tubular element is in the unexpanded form and to unlock the arm upon radial expansion of the tubular member so as to allow the arm to move to the extended position thereof.
(FR) Cette invention concerne un stabilisateur servant à stabiliser un élément tubulaire à expansion radiale placé dans un puits de forage. Ce stabilisateur comprend un élément tubulaire à expansion radiale faisant partie d'un élément tubulaire et entouré d'un manchon. On trouve en outre au moins un bras de stabilisateur relié à l'élément tubulaire, chaque bras pouvant passer d'une position radialement rentrée à une position radialement sortie sous l'action d'un ressort. De plus, le stabilisateur comprend des dispositifs de verrouillage qui bloquent chaque bras en position de rappel lorsque l'élément ne se trouve en position d'expansion et qui le débloquent au moment de l'expansion radiale, ce qui permet au bras de passer en position sortie.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, SK, 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)