EP 1895090 B1 20081015 - Method and apparatus for creating a borehole in the ground
Title (en)
Method and apparatus for creating a borehole in the ground
Title (de)
Verfahren und Vorrichtung zum Erstellen einer Bohrung im Boden
Title (fr)
Procédé et dispositif de réalisation d'un trou de forage dans le sol
Publication
Application
Priority
EP 06017593 A 20060823
Abstract (en)
[origin: EP1895090A1] The method involves setting a rotatably driven drill pipe (1) and a conveyor screw (2) into rotation, and introducing the drill pipe and the screw into soil. An outcropping soil material is loosened by a set of main cutting edges (50, 50`) positioned axially in front of the conveyor screw, and is conveyed away by the conveyor screw inside the drill pipe. The main cutting edges are arranged in the drill pipe and are rotated with the drill pipe. The drill pipe and the conveyor screw are controlled independently of each other with regard to rotational speed and/or direction of rotation. An independent claim is also included for a device for producing a borehole in soil.
IPC 8 full level
E21B 10/44 (2006.01); E21B 7/00 (2006.01)
CPC (source: EP KR US)
E21B 7/005 (2013.01 - EP KR US); E21B 10/44 (2013.01 - EP KR 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 LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1895090 A1 20080305; EP 1895090 B1 20081015; AT E411447 T1 20081015; CA 2597819 A1 20080223; CA 2597819 C 20110208; CN 101200994 A 20080618; CN 101200994 B 20120620; DE 502006001852 D1 20081127; JP 2008050937 A 20080306; JP 4694542 B2 20110608; KR 100910201 B1 20090730; KR 20080018153 A 20080227; RU 2007131213 A 20090227; RU 2370619 C2 20091020; US 2008047757 A1 20080228; US 7546887 B2 20090616
DOCDB simple family (application)
EP 06017593 A 20060823; AT 06017593 T 20060823; CA 2597819 A 20070817; CN 200710194465 A 20070823; DE 502006001852 T 20060823; JP 2007216762 A 20070823; KR 20070085201 A 20070823; RU 2007131213 A 20070816; US 89255607 A 20070823