Title (en)

AN ANNULAR BARRIER

Title (de)

RINGFÖRMIGE BARRIERE

Title (fr)

BARRIÈRE ANNULAIRE

Publication

EP 3216976 A1 20170913 (EN)

Application

EP 17165850 A 20111006

Priority

• EP 2010064985 W 20101007
• EP 11764752 A 20111006

Abstract (en)

The present invention relates to an annular barrier for being expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole. The annular barrier comprises a tubular part for mounting as part of the well tubular structure; an expandable sleeve made of a first metal, surrounding the tubular part and defining a space being in fluid communication with an inside of the tubular part, the expandable sleeve having a longitudinal extension, an inner face facing the tubular part and two ends; a connection part made of a second metal, connecting the expandable sleeve with the tubular part; an opening for letting fluid into the space to expand the sleeve.

IPC 8 full level

E21B 33/127 (2006.01)

CPC (source: EP)

E21B 33/1277 (2013.01)

Citation (search report)

• [XI] EP 2206879 A1 20100714 - WELLTEC AS [DK]
• [X] US 4349204 A 19820914 - MALONE BILLY C
• [X] US 4403660 A 19830913 - COONE MALCOLM G [US]
• [X] US 3581816 A 19710601 - MALONE BILLY C
• [A] US 2007114016 A1 20070524 - BREZINSKI MICHAEL M [US], 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

DOCDB simple family (publication)

EP 3216976 A1 20170913; EP 2625375 A1 20130814; EP 2625375 B1 20170412

DOCDB simple family (application)

EP 17165850 A 20111006; EP 11764752 A 20111006