EP 3092368 A1 20161116 - INSULATION DEVICE FOR A WELL
Title (en)
INSULATION DEVICE FOR A WELL
Title (de)
ISOLIERVORRICHTUNG FÜR EIN BOHRLOCH
Title (fr)
DISPOSITIF D'ISOLATION POUR PUITS
Publication
Application
Priority
- FR 1450214 A 20140110
- EP 2015050345 W 20150109
Abstract (en)
[origin: WO2015104381A1] The invention concerns an insulation device for insulating a well through the controlled supply of the inner volume of an expandable liner positioned on a casing, said device comprising a check valve positioned in a passage that links the inner volumes of the casing and of the liner, and a three-way valve that switches a single time between an initial state, in which a link links the inner volumes of the casing and of the liner in order to expand the liner, and a final state, in which the link between the inner volumes of the casing and of the liner is broken, while a link is established between the inner volume of the liner and an annular volume of the well, the three-way valve and the check valve forming, after switching, two check valves mounted in series and in opposite directions in the passage linking the inner volumes of the casing and of the liner.
IPC 8 full level
E21B 33/127 (2006.01)
CPC (source: EP US)
E21B 33/127 (2013.01 - EP US); E21B 34/063 (2013.01 - EP US); E21B 34/10 (2013.01 - US); E21B 33/14 (2013.01 - US)
Citation (search report)
See references of WO 2015104381A1
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)
WO 2015104381 A1 20150716; EP 3092368 A1 20161116; EP 3092368 B1 20171129; FR 3016389 A1 20150717; FR 3016389 B1 20160108; NO 3092368 T3 20180428; US 10060222 B2 20180828; US 2016341003 A1 20161124
DOCDB simple family (application)
EP 2015050345 W 20150109; EP 15700542 A 20150109; FR 1450214 A 20140110; NO 15700542 A 20150109; US 201515110536 A 20150109