Global Patent Index - EP 1570150 A1

EP 1570150 A1 20050907 - ONE-STEP DIRECTIONAL CORING OR DRILLING SYSTEM

Title (en)

ONE-STEP DIRECTIONAL CORING OR DRILLING SYSTEM

Title (de)

EIN-MARSCH ABGELENKTES KERNBOHR- ODER BOHRSYSTEM

Title (fr)

SYSTEME DE CAROTTAGE OU FORAGE DEVIE A UNE PASSE

Publication

EP 1570150 A1 20050907 (FR)

Application

EP 03747752 A 20030925

Priority

  • BE 0300161 W 20030925
  • BE 200200563 A 20020926

Abstract (en)

[origin: WO2004029401A1] The invention concerns an assembly designed for directional coring or drilling, in a wall of a borehole previously drilled or cored in a formation comprising a guide element (1) having a coaxial inner space (5) for housing therein a core barrel (7), an expansible device (9) having an outer lateral surface (13) and which is designed, when the device (9) is expanded, to be supported immobilized against the borehole wall, a deflecting channel (19) drilled in the guide element (1) and whereof one base (23) and two lateral flanks (25) follow a sloping direction relative to the longitudinal axis (27) of the guide element (1), a longitudinal cavity (29) hollowed out in the guide element (1) and designed to allow a passage, an outer tube (33) of said core barrel (7) including a core bit (35) and designed to be slidable, after being released, in the inner space (5) and in the deflecting channel (19) and then advance into the formation, into the outer tube (33) or a removable tubing (39) designed to be releasably and tightly connected to selective actuating means (15) for circulating thereto a pressurized fluid, either an inner core barrel tube or a core bit top designed to enable drilling by the latter.

IPC 1-7

E21B 7/08; E21B 10/64; E21B 23/06; E21B 25/02; E21B 25/16

IPC 8 full level

E21B 7/06 (2006.01); E21B 7/08 (2006.01); E21B 10/64 (2006.01); E21B 23/06 (2006.01); E21B 25/02 (2006.01); E21B 25/16 (2006.01)

CPC (source: EP)

E21B 7/061 (2013.01); E21B 10/64 (2013.01); E21B 23/06 (2013.01); E21B 25/02 (2013.01); E21B 25/16 (2013.01)

Citation (search report)

See references of WO 2004029401A1

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 2004029401 A1 20040408; AT 346218 T 20061215; BE 1015123 A3 20041005; CA 2499725 A1 20040408; CA 2499725 C 20100511; DE 60309925 D1 20070104; EP 1570150 A1 20050907; EP 1570150 B1 20061122; NO 20051890 L 20050419; US 2005167158 A1 20050804; US 2007017707 A1 20070125; US 7117958 B2 20061010; US 7320373 B2 20080122

DOCDB simple family (application)

BE 0300161 W 20030925; AT 03747752 T 20030925; BE 200200563 A 20020926; CA 2499725 A 20030925; DE 60309925 T 20030925; EP 03747752 A 20030925; NO 20051890 A 20050419; US 47012306 A 20060905; US 8991205 A 20050325