EP 1934426 B1 20090304 - UNDER-REAMING AND STABILIZING TOOL FOR USE IN A BOREHOLE AND METHOD FOR USING SAME
Title (en)
UNDER-REAMING AND STABILIZING TOOL FOR USE IN A BOREHOLE AND METHOD FOR USING SAME
Title (de)
NACHBOHR- UND STABILISIERUNGSWERKZEUG FÜR DEN EINSATZ IN EINEM BOHRLOCH UND VERWENDUNGSVERFAHREN DAFÜR
Title (fr)
OUTIL D ELARGISSEMENT ET DE STABILISATION A METTRE EN SERVICE DANS UN TROU DE FORAGE ET PROCEDE POUR SA MISE EN OEUVRE
Publication
Application
Priority
BE 2005000145 W 20051011
Abstract (en)
[origin: WO2007041811A1] The invention concerns an under-reaming and stabilizing tool comprising a tubular body (1) having an axial cavity (2) open outwards by at least one radial guide channel (3), a blade element (5, 6) arranged radially mobile in each radial guide channel, and wedge means (17, 18) which through an axial displacement inside the tubular body, induce a radial movement of each blade element (5, 6) as well as a drive tube (11) which is mounted inside said axial cavity so as to produce therein axial movements, the wedge means being supported at the periphery of the drive tube so as to perform between them a relative sliding movement, stop means being capable of releasably locking the wedge element on the drive tube in a locking position wherein the drive tube can produce its axial movements driving with it the wedge element.
IPC 8 full level
E21B 10/32 (2006.01); E21B 10/62 (2006.01)
CPC (source: EP US)
E21B 10/322 (2013.01 - EP US); E21B 10/62 (2013.01 - EP US)
Designated contracting state (EPC)
GB NL
DOCDB simple family (publication)
WO 2007041811 A1 20070419; CA 2624697 A1 20070419; CA 2624697 C 20121204; EP 1934426 A1 20080625; EP 1934426 B1 20090304; NO 20082043 L 20080711; US 2008251295 A1 20081016; US 2010096191 A1 20100422; US 7654342 B2 20100202; US 7958951 B2 20110614
DOCDB simple family (application)
BE 2005000145 W 20051011; CA 2624697 A 20051011; EP 05797916 A 20051011; NO 20082043 A 20080429; US 10079708 A 20080410; US 64586509 A 20091223