EP 2670943 A1 20131211 - TOOL AND METHOD TO PLUG AND ABANDON A WELL
Title (en)
TOOL AND METHOD TO PLUG AND ABANDON A WELL
Title (de)
WERKZEUG UND VERFAHREN ZUM VERSTOPFEN UND SCHLIESSEN EINES BOHRLOCHS
Title (fr)
OUTIL ET PROCÉDÉ DE BOUCHAGE ET D'ABANDON DE PUITS
Publication
Application
Priority
- NO 20110190 A 20110203
- NO 2012050016 W 20120203
Abstract (en)
[origin: WO2012105852A1] A tool (10) is described for the handling of wells through a formation, and which shall be taken out of operation with a device for a closing plug of a material that can be hardened, such as concrete, where there is a casing pipe in the well that is cemented against the wall in the bore hole with concrete, and it is characterised in that the tool comprises an assembled unit (10) from the following three sections; a perforating lance (32) comprising a number of explosive charges to form by detonation a row of holes in the pipe and out into the surrounding layer of concrete, a cleaning unit (34) for mechanical cleaning of the inner wall of the pipe in the perforated area and a flushing unit (36) to loosen, dissolve and flush away the hardened cement material between the outer wall of the pipe and the wall of the bore hole. Also described is a method to plug a well that shall be taken out of operation.
IPC 8 full level
E21B 33/13 (2006.01); E21B 37/00 (2006.01); E21B 37/02 (2006.01); E21B 43/11 (2006.01)
CPC (source: EP US)
E21B 29/02 (2013.01 - US); E21B 33/13 (2013.01 - EP US); E21B 37/02 (2013.01 - EP US); E21B 43/116 (2013.01 - EP 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
DOCDB simple family (publication)
WO 2012105852 A1 20120809; AU 2012211550 A1 20130815; AU 2012211550 B2 20161020; BR 112013019782 A2 20200721; BR 112013019782 B1 20210921; CA 2823816 A1 20120809; DK 2670943 T3 20190708; EP 2670943 A1 20131211; EP 2670943 A4 20170809; EP 2670943 B1 20190424; NO 20110190 A1 20120806; NO 335153 B1 20141006; RU 2013138598 A 20150310; RU 2564427 C2 20150927; US 2014138078 A1 20140522
DOCDB simple family (application)
NO 2012050016 W 20120203; AU 2012211550 A 20120203; BR 112013019782 A 20120203; CA 2823816 A 20120203; DK 12741833 T 20120203; EP 12741833 A 20120203; NO 20110190 A 20110203; RU 2013138598 A 20120203; US 201213984339 A 20120203