EP 2990591 A1 20160302 - Method and tool for removal of casings in wells
Title (en)
Method and tool for removal of casings in wells
Title (de)
Verfahren und Werkzeug zur Beseitigung von Verkleidungen in Bohrlöchern
Title (fr)
Procédé et outil pour enlever des tubages dans des puits
Publication
Application
Priority
EP 14182748 A 20140829
Abstract (en)
A method for removing a casing section (14) from a casing (12) that lines a subsurface borehole (16) is presented. The casing section has a wall constituting an elongated hollow cylinder. The method involves: separating the casing section from the rest of the casing, and cutting the complete casing section in a lengthwise direction of the borehole into at least three elongated casing portions (20). The method further involves: removing the elongated casing portions from the original location of the casing section. A tool (10) for performing the method is also presented
IPC 8 full level
E21B 29/00 (2006.01)
CPC (source: EP)
E21B 29/002 (2013.01)
Citation (search report)
- [XI] US 2014231087 A1 20140821 - ORSTAD LEIF [NO]
- [A] US 2009071640 A1 20090319 - IVANOV ANATOLIY NIKOLAYEVICH [RU], et al
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)
DOCDB simple family (application)
EP 14182748 A 20140829