(19)
(11) EP 2 715 058 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
21.11.2018 Bulletin 2018/47

(45) Mention of the grant of the patent:
15.08.2018 Bulletin 2018/33

(21) Application number: 12722282.6

(22) Date of filing: 10.05.2012
(51) International Patent Classification (IPC): 
E21B 43/16(2006.01)
C09K 8/58(2006.01)
 E21B 43/20(2006.01)
(86) International application number:
PCT/DK2012/050158
(87) International publication number:
WO 2012/152285 (15.11.2012 Gazette 2012/46)

(54)

ENZYME ENHANCED OIL RECOVERY

DURCH ENZYME VERSTÄRKTE ÖLGEWINNUNG

RÉCUPÉRATION DU PÉTROLE OPTIMISÉE PAR DES ENZYMES

(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

(30) Priority: 10.05.2011 DK 201100362
10.05.2011 US 201161484519 P

(43) Date of publication of application:
09.04.2014 Bulletin 2014/15

(73) Proprietor: Total E&P Danmark A/S
2100 Københaven Ø (DK)

(72) Inventor:
  • FRANK, Søren
    Doha (QA)

(74) Representative: Patentgruppen A/S 
Aaboulevarden 31, 4
8000 Aarhus C
8000 Aarhus C (DK)


(56) References cited: : 
US-A- 3 288 211
US-A1- 2008 283 242
US-A1- 2009 288 843
 US-A- 4 501 674
US-A1- 2009 090 504
US-A1- 2010 243 248
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).