EP 2453104 A1 20120516 - DOWNHOLE DEVICE
Title (en)
DOWNHOLE DEVICE
Title (de)
BOHRLOCHVORRICHTUNG
Title (fr)
DISPOSITIF DE PUITS
Publication
Application
Priority
- RU 2010000294 W 20100607
- RU 2009126485 A 20090710
Abstract (en)
The device is used in technical operations during well completion. The device acts as a sealing device by using a seal (5). The seal (5) divides the well into an upper cavity (16) and a lower cavity (17). The seal (5) includes a collet (7) that comprises segments (8), a liner (10), springs (11) and a casing (6). The segments (8) are capable of separating upon interaction with the well equipment (drilling column (19)) and are provided with additional seals (9). The casing (6) is situated in the lower portion of the collet (7) and enables the movement of the segments (8) upon the separation thereof. The seal (5) is situated in a threaded (2, 3) housing (1). The housing (1) is secured in a roller bearing (4). The device further includes an adjustment insert (12) that is capable of interacting with the well equipment upon the installation thereof and of moving the same so as to open the channel of a hydraulic connection (13) between the well opening, the upper cavity, the lower cavity and the producing formation. This technical solution makes it possible to carry out any well completion operation, prevent the inflow of formation fluids and increase the yield of the well, well completion being carried out without the generation of overbalance on the formation. 3 dependent claims, 7 figures.
IPC 8 full level
E21B 34/14 (2006.01); E21B 43/00 (2006.01)
CPC (source: EP KR US)
E21B 33/12 (2013.01 - EP KR US); E21B 34/14 (2013.01 - KR)
Citation (search report)
See references of WO 2011005144A1
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 SE SI SK SM TR
DOCDB simple family (publication)
EP 2453104 A1 20120516; BR 112012000580 A2 20190924; CA 2767197 A1 20110113; CL 2012000067 A1 20130208; CN 102482929 A 20120530; CN 102482929 B 20140402; EA 020796 B1 20150130; EA 201200108 A1 20120629; IN 916DEN2012 A 20150403; KR 20120048622 A 20120515; MX 2012000004 A 20121003; PE 20121203 A1 20120928; UA 105797 C2 20140625; US 2012132429 A1 20120531; WO 2011005144 A1 20110113
DOCDB simple family (application)
EP 10797365 A 20100607; BR 112012000580 A 20100607; CA 2767197 A 20100607; CL 2012000067 A 20120110; CN 201080030926 A 20100607; EA 201200108 A 20100607; IN 916DEN2012 A 20120201; KR 20127003645 A 20100607; MX 2012000004 A 20100607; PE 2012000014 A 20100607; RU 2010000294 W 20100607; UA A201201386 A 20100607; US 201013382999 A 20100607