EP 2825722 A1 20150121 - DEVICE FOR INSULATING A PORTION OF A WELL
Title (en)
DEVICE FOR INSULATING A PORTION OF A WELL
Title (de)
VORRICHTUNG ZUM ISOLIEREN EINES TEILS EINES BOHRLOCHS
Title (fr)
DISPOSITIF D'ISOLATION D'UNE PARTIE D'UN PUITS
Publication
Application
Priority
- FR 1252384 A 20120316
- US 201261614225 P 20120322
- EP 2013051665 W 20130129
Abstract (en)
[origin: US2013240202A1] The invention relates to isolation of part of a well, which comprises pipe provided, along its external face, with a first external sleeve, wherein the opposite ends are connected directly or indirectly to said external face of the pipe. The pipe, first external sleeve and its ends together delimit an annular space, the wall of said pipe exhibiting at least one opening which allows it to communicate with said space, this sleeve being likely to expand and to be applied tightly against the well over an intermediate part of its length. The device also comprises on the one hand, a second internal sleeve, which extends between said pipe and the first sleeve, its ends being also connected directly or indirectly to the external face of said pipe and, on the other hand, at least one communication passage between the exterior of the first sleeve and said space.
IPC 8 full level
E21B 33/127 (2006.01)
CPC (source: EP US)
E21B 33/12 (2013.01 - US); E21B 33/126 (2013.01 - US); E21B 33/1277 (2013.01 - EP US); E21B 33/13 (2013.01 - US); E21B 34/10 (2013.01 - US); E21B 43/12 (2013.01 - US); E21B 43/14 (2013.01 - US); E21B 43/26 (2013.01 - EP US)
Citation (search report)
See references of WO 2013135415A1
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)
US 2013240202 A1 20130919; US 9506314 B2 20161129; AU 2013231602 A1 20140206; AU 2013231602 B2 20170427; AU 2013231602 B9 20170525; CA 2841797 A1 20130919; CA 2841797 C 20190924; CN 103717830 A 20140409; CN 103717830 B 20160928; EP 2825722 A1 20150121; FR 2988126 A1 20130920; FR 2988126 B1 20150313; RU 2014100877 A 20150720; RU 2614826 C2 20170329; US 10125566 B2 20181113; US 2016376870 A1 20161229; WO 2013135415 A1 20130919
DOCDB simple family (application)
US 201313768209 A 20130215; AU 2013231602 A 20130129; CA 2841797 A 20130129; CN 201380002278 A 20130129; EP 13704731 A 20130129; EP 2013051665 W 20130129; FR 1252384 A 20120316; RU 2014100877 A 20130129; US 201615261083 A 20160909