EP 2990590 A1 20160302 - CENTRALIZER AND ASSOCIATED DEVICES
Title (en)
CENTRALIZER AND ASSOCIATED DEVICES
Title (de)
ZENTRIERVORRICHTUNG UND ZUGEHÖRIGE VORRICHTUNGEN
Title (fr)
CENTREUR ET DISPOSITIFS ASSOCIÉS
Publication
Application
Priority
- GB 201415352 A 20140829
- US 201462043550 P 20140829
Abstract (en)
A centralizer, a device and a system are disclosed. The centralizer has a longitudinal axis, and comprises first and second opposing end collars positioned around the axis of the centralizer, and a plurality of spring bows extending from the first end collar via a generally convex curved portion to the second end collar, wherein a radial distance from an outwardly facing portion of the first end collar to the axis is: greater than a radial distance from a first outwardly facing portion of a spring bow of the plurality of spring bows, at a longitudinal axial position where the spring bow extends from the first end collar, to the axis, and less than a radial distance from a second outwardly facing portion of the spring bow, at a longitudinal axial position between the first end collar and the second end collar that is farthest from the axis, to the axis.
IPC 8 full level
E21B 17/10 (2006.01)
CPC (source: EP GB)
E21B 17/1028 (2013.01 - GB); E21B 17/1078 (2013.01 - EP)
Citation (search report)
- [XA] US 4363360 A 19821214 - RICHEY VERNON T
- [A] US 2013248206 A1 20130926 - JORDAN J CHRISTOPHER [US], et al
- [A] US 2004112592 A1 20040617 - GREMILLION MAXIMILLIAN S [US]
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2990590 A1 20160302; EP 2990590 B1 20181107; GB 201415352 D0 20141015; GB 2529697 A 20160302; GB 2529697 B 20170809; WO 2016030685 A1 20160303
DOCDB simple family (application)
EP 15275194 A 20150828; GB 201415352 A 20140829; GB 2015052481 W 20150827