EP 1766179 B1 20071031 - ENLARGING AND STABILISING TOOL FOR A BOREHOLE
Title (en)
ENLARGING AND STABILISING TOOL FOR A BOREHOLE
Title (de)
VERGRÖSSERUNGS- UND STABILISIERWERKZEUG FÜR EIN BOHRLOCH
Title (fr)
OUTIL D' ELARGISSEMENT ET DE STABILISATION A METTRE EN OEUVRE DANS UN TROU DE FORAGE
Publication
Application
Priority
- EP 2005052613 W 20050607
- BE 2004000083 W 20040609
Abstract (en)
[origin: WO2005124094A1] The inventive enlarging and stabilising tool for a borehole comprises a tubular body (1) provided with an axial cavity (2), circumferentially arranged receptacles provided with an outward opening, a knife element (4) disposed in each receptacle and comprising at least two cutting arms (5, 6) which are displaceable between the retracted and extended positions, a drive means (15) mounted inside the tubular body in an axially offset manner with respect to the knife elements and transmission means for transmitting the drive means motion to the pivotable cutting arms, wherein said cutting arms form a space (14) outwardly closed in the extended position thereof therebetween and the tool tubular body.
IPC 8 full level
E21B 10/32 (2006.01); E21B 7/28 (2006.01)
CPC (source: EP US)
E21B 10/322 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005124094 A1 20051229; AT E377130 T1 20071115; CA 2568909 A1 20051229; CA 2568909 C 20111115; CN 1965145 A 20070516; CN 1965145 B 20100505; DE 602005003135 D1 20071213; DE 602005003135 T2 20080821; DE 602005003135 T8 20090108; EP 1766179 A1 20070328; EP 1766179 B1 20071031; NO 20070117 L 20070307; NO 334140 B1 20131216; US 2005274546 A1 20051215; US 2008257608 A1 20081023; US 2009314548 A1 20091224; US 7401666 B2 20080722; US 7584811 B2 20090908; US 7975783 B2 20110712
DOCDB simple family (application)
EP 2005052613 W 20050607; AT 05754525 T 20050607; CA 2568909 A 20050607; CN 200580018799 A 20050607; DE 602005003135 T 20050607; EP 05754525 A 20050607; NO 20070117 A 20070108; US 14616008 A 20080625; US 14793505 A 20050608; US 55031009 A 20090828