EP 2331786 A1 20110615 - INSTRUMENTED DRILL STRING ELEMENT
Title (en)
INSTRUMENTED DRILL STRING ELEMENT
Title (de)
INSTRUMENTIERTES BOHRSTRANGELEMENT
Title (fr)
ÉLÉMENT DE GARNITURE DE FORAGE À INSTRUMENTS
Publication
Application
Priority
- FR 2009001117 W 20090922
- FR 0805376 A 20080930
Abstract (en)
[origin: WO2010037919A1] Drill string element (1) comprising a tubular and elongate body (2) delimiting an interior surface (15) that longitudinally has at least one portion of revolution (18) and has a first hole (27, 37) formed in this tubular and elongate body (2). This first hole has a first end opening onto the said portion of revolution (18) and near to this first end has a longitudinal axis that intersects the interior surface (15) at an intersection site. The longitudinal axis forms, in projection in a first plane that passes through the central axis (14) of the portion of revolution (18) and that contains the intersection site, a first angle of non-zero value and, in projection in a second plane tangential to the interior surface at the said intersection site, a second angle of non-zero value.
IPC 8 full level
E21B 17/02 (2006.01)
CPC (source: EP US)
E21B 17/028 (2013.01 - EP US)
Citation (search report)
See references of WO 2010037919A1
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
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
FR 2936554 A1 20100402; FR 2936554 B1 20101029; AR 073707 A1 20101124; CA 2738741 A1 20100408; CN 102165135 A 20110824; EP 2331786 A1 20110615; EP 2331786 B1 20180502; JP 2012504198 A 20120216; MX 2011003371 A 20110421; RU 2011116539 A 20121110; US 2011155470 A1 20110630; US 8844654 B2 20140930; WO 2010037919 A1 20100408
DOCDB simple family (application)
FR 0805376 A 20080930; AR P090103751 A 20090929; CA 2738741 A 20090922; CN 200980138089 A 20090922; EP 09741328 A 20090922; FR 2009001117 W 20090922; JP 2011528386 A 20090922; MX 2011003371 A 20090922; RU 2011116539 A 20090922; US 200913060965 A 20090922