EP 2681407 A2 20140108 - TRACTOR AND JAR ASSEMBLY
Title (en)
TRACTOR AND JAR ASSEMBLY
Title (de)
TRANSPORT- UND ERSCHÜTTERUNGSANORDNUNG
Title (fr)
ENSEMBLE
Publication
Application
Priority
- GB 201103735 A 20110304
- GB 201110772 A 20110624
- GB 2012050472 W 20120302
Abstract (en)
[origin: US2012222857A1] A transport assembly comprising: an attachment member attachable to a downhole tool; normally two rotatable members, connected to the attachment member, the rotatable members being arranged to rotate around their main longitudinal axis; a plurality of engaging members attached to each rotatable member and extending radially outwards therefrom with respect to the main longitudinal axis; the engaging members being helically arranged around the rotatable members. The transport assembly can thus be driven into a well in a ‘corkscrew’ type manner. Embodiments include a jarring mechanism which may be reset downhole and can jar attached tools in either direction.
IPC 8 full level
E21B 23/14 (2006.01); E21B 4/18 (2006.01); E21B 31/107 (2006.01)
CPC (source: EP US)
E21B 4/18 (2013.01 - EP US); E21B 23/00 (2013.01 - US); E21B 23/001 (2020.05 - EP); E21B 23/14 (2013.01 - EP US); E21B 31/107 (2013.01 - EP US); E21B 23/001 (2020.05 - US)
Citation (search report)
See references of WO 2012120282A2
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
DOCDB simple family (publication)
US 2012222857 A1 20120906; EP 2681407 A2 20140108; US 2014014321 A1 20140116; WO 2012120282 A2 20120913; WO 2012120282 A3 20131107
DOCDB simple family (application)
US 201113205696 A 20110809; EP 12716519 A 20120302; GB 2012050472 W 20120302; US 201214003154 A 20120302