EP 2373868 A1 20111012 - TUBULAR DRILL STRING COMPONENT AND CORRESPONDING DRILL STRING
Title (en)
TUBULAR DRILL STRING COMPONENT AND CORRESPONDING DRILL STRING
Title (de)
ROHRFÖRMIGER BOHRSTRANGTEIL UND ENTSPRECHENDER BOHRSTRANG
Title (fr)
COMPOSANT TUBULAIRE DE GARNITURE DE FORAGE ET GARNITURE DE FORAGE CORRESPONDANTE
Publication
Application
Priority
- FR 2010000001 W 20100104
- FR 0900019 A 20090106
Abstract (en)
[origin: WO2010079283A1] The invention relates to a tubular drill string component for drilling a hole with a drilling fluid flowing around said component (7) and, in the direction from the bottom of the drill hole to the surface, said component including a first end with a female thread, a second end (8) with a male thread, and a substantially tubular central area (9), said component including a communication tube (19) arranged at least in the central area and in contact with a bore of the central area, a signal transmission cable (18) being arranged in the tube, characterised in that the communication tube includes a body made of at least one metal strip arranged with an annular component, the body including, in a cross-section along a plane passing through the axis of the tube, at least two axially elongate sections, with partial mutual overlap with an axial clearance selected to absorb the maximum resilient deformation of the component under an axial compression and/or bending force.
IPC 8 full level
E21B 17/02 (2006.01)
CPC (source: EP US)
E21B 17/023 (2013.01 - EP US)
Citation (search report)
See references of WO 2010079283A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
FR 2940816 A1 20100709; FR 2940816 B1 20110218; AR 074988 A1 20110302; CA 2748575 A1 20100715; CN 102272408 A 20111207; EP 2373868 A1 20111012; JP 2012514702 A 20120628; MX 2011007230 A 20110804; RU 2011132788 A 20130220; SG 172883 A1 20110829; US 2011290475 A1 20111201; US 9291004 B2 20160322; WO 2010079283 A1 20100715
DOCDB simple family (application)
FR 0900019 A 20090106; AR P100100012 A 20100105; CA 2748575 A 20100104; CN 201080004012 A 20100104; EP 10703305 A 20100104; FR 2010000001 W 20100104; JP 2011544074 A 20100104; MX 2011007230 A 20100104; RU 2011132788 A 20100104; SG 2011049384 A 20100104; US 201013143119 A 20100104