Global Patent Index - EP 0995010 A1

EP 0995010 A1 20000426 - CORE BARREL

Title (en)

CORE BARREL

Title (de)

KERNBOHRWERKZEUG

Title (fr)

CAROTTIER

Publication

EP 0995010 A1 20000426 (FR)

Application

EP 98933379 A 19980708

Priority

  • BE 9800104 W 19980708
  • BE 9700590 A 19970708

Abstract (en)

[origin: WO9902816A1] The invention concerns a core barrel, in particular in the field of oil exploration, comprising at least an outer tube (2) and a core bit (3) forming an outer assembly (4) and at least an inner tube (5) forming with a drilling core optionally present therein, and optionally with part of the groups arranged under the drilling core base, an inner assembly (7), suspension and/or guiding means being provided for maintaining the inner assembly (7) inside the outer assembly (4), the suspension and/or guiding means being further arranged such that the inner assembly (7) maintains at least perpendicular to these means (9), with respect to the outer assembly (4), a predetermined axial and/or radial and/or angular freedom of movement greater than usual.

IPC 1-7

E21B 25/00; E21B 25/02; E21B 10/48

IPC 8 full level

E21B 10/48 (2006.01); E21B 25/00 (2006.01); E21B 25/02 (2006.01)

CPC (source: EP US)

E21B 10/48 (2013.01 - EP US); E21B 25/00 (2013.01 - EP US); E21B 25/02 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE FR GB IT NL

DOCDB simple family (publication)

WO 9902816 A1 19990121; BE 1011266 A3 19990706; CA 2295655 A1 19990121; CA 2295655 C 20070626; DE 69822466 D1 20040422; DE 69822466 T2 20050324; EP 0995010 A1 20000426; EP 0995010 B1 20040317; NO 20000057 D0 20000106; NO 20000057 L 20000211; NO 316529 B1 20040202; US 6341656 B1 20020129

DOCDB simple family (application)

BE 9800104 W 19980708; BE 9700590 A 19970708; CA 2295655 A 19980708; DE 69822466 T 19980708; EP 98933379 A 19980708; NO 20000057 A 20000106; US 46218600 A 20000320