(19)
(11) EP 2 706 188 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.04.2015 Bulletin 2015/17

(43) Date of publication A2:
12.03.2014 Bulletin 2014/11

(21) Application number: 13193384.8

(22) Date of filing: 25.01.2011
(51) International Patent Classification (IPC): 
E21B 33/127(2006.01)
(84) Designated Contracting States:
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

(62) Application number of the earlier application in accordance with Art. 76 EPC:
11152135.7 / 2479376

(71) Applicant: Welltec A/S
3450 Allerød (DK)

(72) Inventors:
  • Hallundbæk, Jørgen
    3230 Græsted (DK)
  • Hazel, Paul
    Aberdeen, AB41/7JQ (GB)
  • Stæhr, Lars
    2600 Glostrup (DK)

(74) Representative: Hoffmann Dragsted A/S 
Rådhuspladsen 16
1550 Copenhagen V
1550 Copenhagen V (DK)

   


(54) Annular barrier with a diaphragm


(57) The present invention relates to an annular barrier arranged in a borehole for providing zone isolation between a first zone and a second zone. Furthermore, the present invention relates to an annular barrier system as well as to a method of placing an annular barrier in an annulus and a method of using annular barriers in an annulus to seal off a first zone from a second zone.







Search report









Search report