(19)
(11) EP 3 299 575 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.09.2018 Bulletin 2018/36

(43) Date of publication A2:
28.03.2018 Bulletin 2018/13

(21) Application number: 18154379.4

(22) Date of filing: 31.01.2018
(51) International Patent Classification (IPC): 
E21B 43/10(2006.01)
E21B 33/127(2006.01)
 E21B 33/124(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
Designated Extension States:
BA ME
Designated Validation States:
MA MD TN

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

(72) Inventors:
  • HAZEL, Paul
    Aberdeen, Aberdeenshire AB41/7JQ (GB)
  • VASQUES, Ricardo Reves
    3450 Allerød (DK)

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

   


(54) DOWNHOLE COMPLETION SYSTEM AND METHOD


(57) The present invention relates to a downhole completion system for being arranged in a wellbore, comprising several casing sections having a casing length of 10-14 metres mounted as one well tubular metal structure by means of casing collars, wherein a number of the several casing sections each comprises at least three annular barriers each comprising an expandable metal sleeve configured to be expanded to abut the wellbore, the annular barriers of each casing section having a common longitudinal extension of at least 50% of the casing length. The present invention also relates to a downhole method for completing a well having a wellbore.







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