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1. (WO1997017526) DOWNHOLE ASSEMBLY FOR INSTALLING AN EXPANDABLE TUBING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017526 International Application No.: PCT/GB1996/002745
Publication Date: 15.05.1997 International Filing Date: 08.11.1996
Chapter 2 Demand Filed: 02.06.1997
IPC:
E21B 27/00 (2006.01) ,E21B 43/10 (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
27
Containers for collecting or depositing substances in boreholes or wells, e.g. bailers for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
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
43
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
02
Subsoil filtering
10
Setting of casings, screens or liners in wells
Applicants:
PETROLINE WELLSYSTEMS LIMITED [GB/GB]; Offshore Technology Park Claymore Drive Bridge of Don Aberdeen AB23 8GD, GB (AllExceptUS)
CAMPBELL, Alasdair [GB/GB]; GB (UsOnly)
Inventors:
CAMPBELL, Alasdair; GB
Agent:
McCALLUM, William, Potter ; Cruickshank & Fairweather 19 Royal Exchange Square Glasgow G1 3AE, GB
Priority Data:
9522926.609.11.1995GB
Title (EN) DOWNHOLE ASSEMBLY FOR INSTALLING AN EXPANDABLE TUBING
(FR) ENSEMBLE DE FOND DE PUITS DESTINE A L'INSTALLATION D'UNE COLONNE EXTENSIBLE
Abstract:
(EN) An assembly (10) for installing expandable tubing in a bore comprises: a length of tubing (14) including an expandable portion and an anchor (24) for releasably fixing the tubing in the bore; and a mandrel (12) for connection to a running string (19) and for carrying the tubing into the bore. The mandrel (12) includes an expander cone (18) for expanding the tubing, the cone (18) being initially located towards the lower end of the tubing, and a coupling (20) for releasably mounting the tubing on the mandrel. The tubing is releasable from the coupling (20) by manipulation of the mandrel following fixing of the tubing in the bore. The coupling is re-engageable with the tubing by further manipulation of the mandrel to permit manipulation of the tubing to release the anchor and permit withdrawal of the assembly from the bore. A coupling (44) may also be provided for releasing the expanding cone from the mandrel.
(FR) Ensemble (10) permettant d'installer une colonne extensible dans un trou de forage et comprenant: une longueur de colonne (14) comprenant une partie extensible et une ancre (24) servant à fixer de manière libérable la colonne dans le trou de forage; et un mandrin (12) se raccordant à un train de tiges de descente (19) et destiné à porter la colonne dans le trou de forage. Le mandrin (12) comprend un cône d'expansion (18) servant à étirer le tubage, ce cône (18) étant initialement placé vers l'extrémité inférieure de la colonne, et un accouplement (20) destiné à fixer de manière libérable la colonne sur le mandrin. La colonne peut se dégager de l'accouplement (20) par manipulation du mandrin après fixation de la colonne dans le trou de forage. L'accouplement peut être réengagé dans la colonne par une autre manipulation du mandrin, ce qui permet de manipuler la colonne pour dégager l'ancre et retirer l'ensemble du trou de forage. Un accouplement (44) peut également être prévu pour dégager le cône d'expansion du mandrin.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1996076306