EP 1492935 B1 20060531 - METHOD AND DEVICE FOR CORING AND/OR DIRECTIONAL DRILLING
Title (en)
METHOD AND DEVICE FOR CORING AND/OR DIRECTIONAL DRILLING
Title (de)
VERFAHREN UND GERÄT ZUM KERNBOHREN UND/ODER ABGELENKTEN BOHREN
Title (fr)
PROCEDE ET DISPOSITIF DE CAROTTAGE ET/OU FORAGE DEVIE
Publication
Application
Priority
- BE 0300054 W 20030325
- BE 200200223 A 20020327
Abstract (en)
[origin: WO03080987A1] The invention concerns a method and a device for coring and/or drilling through a wall of a bore hole, to deflect transversely from a longitudinal direction of the hole, further comprising selecting a core barrel (1) equipped with a core bit (3) having an inner gauge bore (5), an arrangement, in the core barrel (1), of an abrasion resistant internal guide (7), which is internal at least with respect to the bore (5) so that the bit (3) can move along said guide (7), and is designed to deflect the bit (3) along a desired deflected path, start-up of the coring process with said bit (3) and guiding the bit (3) through co-operation between its bore (5) and the guide (7).
IPC 8 full level
E21B 7/06 (2006.01); E21B 25/00 (2006.01)
CPC (source: EP US)
E21B 7/061 (2013.01 - EP US); E21B 25/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03080987 A1 20031002; AT E328183 T1 20060615; BE 1014730 A3 20040302; CA 2480473 A1 20031002; CA 2480473 C 20101221; DE 60305679 D1 20060706; EP 1492935 A1 20050105; EP 1492935 B1 20060531; NO 20044641 L 20041213; NO 334884 B1 20140630; US 2005072598 A1 20050407; US 7021404 B2 20060404
DOCDB simple family (application)
BE 0300054 W 20030325; AT 03711719 T 20030325; BE 200200223 A 20020327; CA 2480473 A 20030325; DE 60305679 T 20030325; EP 03711719 A 20030325; NO 20044641 A 20041027; US 95087704 A 20040927